Skip to main content

Full text of "The Craneflies Collected in Costa Rica by Dr. P. P. Calvert. (Tipulidæ, Diptera)"

See other formats


Early Journal Content on JSTOR, Free to Anyone in the World 

This article is one of nearly 500,000 scholarly works digitized and made freely available to everyone in 
the world by JSTOR. 

Known as the Early Journal Content, this set of works include research articles, news, letters, and other 
writings published in more than 200 of the oldest leading academic journals. The works date from the 
mid-seventeenth to the early twentieth centuries. 

We encourage people to read and share the Early Journal Content openly and to tell others that this 
resource exists. People may post this content online or redistribute in any way for non-commercial 
purposes. 

Read more about Early Journal Content at http://about.jstor.org/participate-jstor/individuals/early- 
journal-content . 



JSTOR is a digital library of academic journals, books, and primary source objects. JSTOR helps people 
discover, use, and build upon a wide range of content through a powerful research and teaching 
platform, and preserves this content for future generations. JSTOR is part of ITHAKA, a not-for-profit 
organization that also includes Ithaka S+R and Portico. For more information about JSTOR, please 
contact support@jstor.org. 



116 Journal New York Entomological Society. tVoi. xxit. 

South Bay, Lake Okeechobee, Fla., May i, 2, 1912; 3 males, 3 
females. 

Marco, Fla., April 17, 1912; 1 nymph. 
Everglade, Fla., June 1912; 1 female. 

Oxocharis saulcyi (Guerin). 

Useppa Island, Lee County, Fla., April 1912; 1 male. 

Everglade, Fla., April 6, 1912; 1 male, 1 female. 

Useppa Island is the most northern locality from which this West 
Indian type has been recorded. 

Tafalisca lurida Walker. 

Punta Gorda, Fla., Nov. 17, 191 1; 1 nymph. 

Naples, Fla. (Scudder Collection), 1 nymph. 

Marco, Fla., April 17, 1912; 1 nymph. 

The Marco specimen is a male in the instar preceding maturity, 
while the Punta Gorda nymph is a much less developed female. 



THE CRANEFLIES COLLECTED IN COSTA RICA BY 
DR. P. P. CALVERT. (TIPULIDiE, DIPTERA). 

By Charles P. Alexander, 

Ithaca, N. Y. 

While collecting the dragonfly material for the Biologia Centrali- 
Americana, Dr. P. P. Calvert secured a very considerable number of 
specimens of other orders of insects. A few of the craneflies that 
were taken have been considered by the author in other papers. 1 The 
majority of the new forms have been left for this paper, however, and 
a complete list of the material secured is herein included. The crane- 
flies of the collection form a small but interesting lot and I am in- 
debted to Dr. Calvert and to Mr. E. T. Cresson, Jr., for the privilege 
of studying these forms. The type-material is in the collection of the 
American Entomological Society at the Academy of Natural Sciences, 
Philadelphia. 

1 Vide Bull. Brook. Ent. Soc, Vol. 8, Oct., 1912; Proc. U. S. Nat. Mus., 
Vol. 44, No. 1966, Apr., 1913. 



June, 1914.] Alexander: Craneflies From Costa Rica. 117 

Subfamily LIMNOBINiE. 
Tribe Limnobini. 
Genus DICRANOMYIA Stephens. 
Dicranomyia omissa Alexander. 

One male and one female specimen from near Cartago, C. R., 
altitude 5,000 feet. They were taken on Dec. 15, 1909, over mud on 
the south slope of Irazu, by Dr. P. P. Calvert. One female from the 
Rio Siquiares, Turrucares, C. R., on Dec. 19, 1909. The specimens 
from Irazu are much larger than the type but undoubtedly belong to 
this same species. 

Genus RHIPIDIA Meigen. 

Subgenus Conorhipidia new subgenus. 

I propose this new subgeneric term for those species of the genus 
in which the mesonotal prsescutum is produced dorsad into a promi- 
nent conical protuberance. Two species are known to me, conica 
Alexander, which is the type of the subgenus, and the smaller form 
described below as punctipennis. 

Rhipidia (Conorhipidia) punctipennis new species. 

Thoracic mesonotum produced into a conical point ; wings with dark mark- 
ings small and sparse. 

Female, length, 5.3-5.6 mm. ; wing, 6.8 mm. 

Female. — Rostrum and palpi dark brown; the antennae light brown with 
pale hairs, the petioles of each segment pale. Head light gray. 

Pronotum and cervical sclerites brown. Mesonotal pnescutum with a con- 
spicuous conical protuberance as in the subgenus; pale yellow in front, rich 
brown behind the conical point ; scutum, scutellum and postnotum brown. 
Pleurae light yellow, except the meso- and meta-pleurae above the coxae, which 
are brown; a shiny brown spot before the root of the wing and another near 
the stigma. Halteres pale, the knob scarcely darker. Legs, fore coxae yellow, 
hind and middle coxae brown ; trochanters, femora and tibiae light yellow, the 
tarsi a little more darkened. Wings pale yellowish hyaline with a few scattered 
brown dots as follows: one at the origin of Rs; one on crossvein r; one at the 
base of R 4 + 5; one at the fork of Cu on Cui 1, indistinct dots at the tips of 
the veins; a rounded brown spot before the tip of 2d anal. Venation as in 
fig. 1. 

Abdomen yellowish brown with a row of about five brown marks on the 
pleurae, the most anterior of which is very small, rounded. 

Holotype, J, Rio Siquiares, Turrucares, C. R., alt., 2,200 ft.; Aug. 14, '09; 
(Dr. P. P. Calvert). 

Paratype, J, with the type. 



118 Journal New York Entomological Society. [Vol. xxii. 

Type in the collection Acad. Nat. Sci. Phil.; the paratype in the 
author's collection. The shape of the thorax, from the side, is shown 
in Fig. 10. 

Rhipidia (Arhipidia) domestica Osten Sacken. 

One male and two females from near Cartago, C. R., altitude 
5,000 ft.; Dec. 15, '09; they were taken on the south slope of Irazu, 
over mud. One male from Cartago, Oct. 2j, '09. 

Rhipidia (Rhipidia) calverti Alexander. 

The type, a male, was taken at Bonnefil farm, Rio Surubres, C. R., 
alt. 700 feet; Oct. 29, '09, by Dr. Calvert. 1 

Rhipidia (Rhipidia) costalis Williston. 

One very small female of this species from Rio Siquiares, Tur- 
rucares, C. R., alt. 2,200 ft., Aug. 14, '09. This is the first representa- 
tive of the species that I have seen and a figure of its venation is 
herein included (Fig. 2). The basal deflection of Cu 1 is at the fork 
of M as in this group of species. 

Genus GERANOMYIA Haliday. 

Geranomyia tristis Loew. 

Two specimens, one of each sex, from Cache, C. R., Mar. 3, 'io. 

Geranomyia sp. 

One female from Alajuela, C. R., alt. 3,100 ft., Sept. 15, '09. The 
specimen is of a small reddish form with hyaline wings but the condi- 
tion of the material forbids closer determination. 

Tribe Antochini. 
Genus TEUCHOLABIS Osten Sacken. 
Teucholabis trifasciata Enderlein. 

One female of this species from Alajuela, C. R., alt. 3,100 ft., 
Sept. 15, '09. As I have indicated in another paper, this species is the 
same as the Limnobia bifasciata of Fabricius. 

Genus TOXORHINA Loew. 
Toxorhina centralis Alexander. 

One female from Cache, C. R., near a stagnant pool, bank of the 
Rio Reventazon; Mar. 10, '10. 

1 See Bull. Brook. Ent. Soc, Vol. 8, Oct. 1912, p. 8-10, fig. d and h. 



June, 1914.I Alexander: Craneflies From Costa Rica. 119 

Tribe Eriopterini. 
Genus RHABDOMASTIX Skuse. 
Subgenus Rhabdomastix Skuse. 

Rhabdomastix (Rhabdomastix) septentrionalis, new species. 

Antennae of the male very long ; color of the body dark brown ; the 
stigmal spot of the wings pale. 

Male, length, 6 mm. ; wing, 7 mm. ; antennae (only twelve segments remain- 
ing) 15.5 mm. 

Male. — Antennae with the basal segment very large, light brown, flagellum 
yellowish brown. Head brown with a light gray bloom. 

Mesonotum dark brown, the pseudosutural fovea not conspicuous ; scutum, 
scutellum and postnotum light brown. Pleurae light brown with a sparse gray- 
ish bloom. Halteres pale yellow. Legs, coxae, brown with a sparse gray bloom, 
trochanters dull yellow, femora dull yellow, tibiae light brown, tarsi brown. 
Wings light gray, stigma oval, gray, rather indistinct, veins dark brown. Vena- 
tion (see fig. 3) : R 2 -J- j, long, rather longer than vein R 2 alone. 

Abdomen dark brown, the apical margins of the sclerites paler, brown ; 
hypopygium yellowish. 

Holotype, male, Alajuela, C. R. : alt. 3,100 ft.; Sept. 15, '09 (Dr. 
P.P.Calvert). 

Type in the collection Acad. Nat. Sci. Phil. 

Related to R. (R.) illudens Alexander (Bolivia) 1 but much 
smaller and dark brown in color, the thorax not clear gray with 
prominent pseudosutural fovese. This is the most northerly repre- 
sentative of the subgenus yet made known. 

Genus GNOPHOMYIA Osten Sacken. 

Gnophomyia subhyalina Alexander. 

One female from Alajuela, C. R., alt., 3,100 ft., on Sept. 15, '09, 
by Dr. Calvert. 

Genus MOLOPHILtJS Curtis. 

Molophilus orion, new species. 

Antennae of the male moderately long; ventral appendage of the hypo- 
pygium in the shape of a long, paddle-like arm densely clothed with a brush of 
hairs on its inner face. 

Male, length, 3.8 mm.; wing 4.4 mm. 

Female, length, 4.4 mm. ; wing 5 mm. 

Male. — Rostrum and palpi brown; antennae rather short, if bent back- 
ward not extending beyond the wing-root ; the flagellar segments oval; an- 
tennae brown covered with a dense pale pubescence ; head grayish brown. 

1 Ent. News, 1914, Vol. XXV, pp. 210, 211; pi. 9, fig. 6. 



120 Journal New York Entomological Society. E Vo1 - xxil 

Mesonotal praeseutum grayish brown, the pseudosutural foveae prominent, 
elongate, reddish brown ; scutum, scutellum, postnotum and pleurae grayish 
brown. Halteres rather long, uniform light yellow. Legs, coxae and trochanters 
yellowish brown, femora and tibiae similar, the tips of the individual segments 
not infuscated, tarsi brown. Wings rather uniform light yellow, the veins pale. 
Venation as in fig. 4. 

Abdomen brown. Hypopygium about as in other species of the genus 
except the ventral appendage (see fig. 9) which here is long and slender, 
chitinized heavily, and having its inner or cephalic margin provided with a long 
dense brush of hairs. The anal lobe is provided with a dense covering of long 
pale hairs. 

Female, similar but larger. 

Holotype, male, Alajuela, C. R., alt. 3,100 ft., Sept. 15, '09 (Dr. 
P. P. Calvert). 

Allotype, female, with the type. 

Types in the collection Acad. Nat. Sci. Phil. 

The numerous species of Molophilus bear a great superficial re- 
semblance to one another and most of the species can only be sep- 
arated by a comparative study of the male genitalia. The ventral 
apical appendage is heavily chitinized and very various in shape in 
the different species and offers the best criterion for specific determi- 
nation. The only other Central American Molophilus described is 
M. guatemalensis Alexander 1 which I have figured in Entomological 
News, Vol. XXV, pi. 9, fig. 3, 1914; as shown by the figure, the 
ventral appendages of the two species are entirely different. 

Genus ERIOPTERA Meigen. 

Subgenus Mesocyphona Osten Sacken. 

Erioptera (Mesocyphona) parva Osten Sacken. 

Two males and two females from Alajuela, C. R., Sept. 15, '09. 

Erioptera (Mesocyphona) caloptera femoranigra Alexander. 

Many specimens of both sexes, including the type material, from 
Juan Vinas, C. R., July 21, '09; they were attracted to a light on a 
rainy evening. Also from Cache, C. R., near the Rio Reventazon alt. 
3,450 ft., Mar. 4, 'io, and at Alajuela, C. R., alt., 3,100 ft., Sept. 15, 
'09, one female specimen. Eleven specimens from the type locality 
now before me have the dark bands on the femora much paler and 
less intense, but undoubtedly belong here. 

1 Proc. U. S. Nat. Mus., Vol. 44, p. 511, 1913. 



June, 1914.] Alexander: Craneflies From Costa Rica. 121 

Genus GONOMYIA Meigen. 
Subgenus Leiponeura Skuse. 

Gonomyia (Leiponeura) recurvata, new species. 

Pleuralis group ; male hypopygium having two chitinized points on the 
pleurites; dorsal gonapophyses long, slender, almost straight; ventral gona- 
pophyses bent cephalad. 

Male, length, 4.4 mm. ; wing, 3.7 mm. 

Female, length, 5.7 mm. ; wing, 5 mm. 

Male. — Rostrum and palpi brown ; antennae with the basal segments yeHow 
with a faint brown suffusion, flagellum brown ; head pale yellowish. 

Mesonotal praescutum light brownish orange, the lateral margin very pale 
yellow separated from the orange by a very narrow dark brown line which 
is not apparent in front ; scutellum pale, whitish, with a brown median line. 
Pleurae having the pale line that is enclosed by the pleural stripes very pale, 
almost white, the lower dark pleural stripe broad. Halteres light brown. Legs, 
coxae and trochanters very pale, femora light brown with a broad, indistinct 
subapical ring, the tip rather broadly pale ; tibiae and tarsi light brown. Wings 
subhyaline, the stigmal spot vary large, rounded-oval, dark brown, veins brown. 

Abdominal tergites light yellow, the extreme tip and base of each seg- 
ment conspicuously dark brown ; sternites more uniformly dark brown. Hypo- 
pygium with the pleural pieces rather stout, the dorsal fleshy appendage long, 
slender, very pale; the ventral appendage is enlarged at its base and near the 
tip bearing a prominent chitinized tooth which is directed outward ; at the tip 
of the lobe are several bristles and before the chitinized portion there is a 
shorter conical tooth on the outer or caudal margin of the lobe, this tooth 
being very pale, subhyaline. The ventro-lateral margin of the pleurite is pro- 
duced caudad into a long, slender chitinized rod which is directed toward the 
chitinized tooth described above. The dorsal gonapophyses (see Fig. 6, e) : 
are very long, slender, straight, lying parallel to one another and diverging 
only at the tips which are more chitinized. The guard of the penis (g) is very 
long, slender, extending about to the point of divergence of the dorsal gona- 
pophyses. The ventral gonapophyse (/) is rectangular with two short teeth at 
the tip. The whole organ is recurved cephalad and the tips lie against the 
flaring margin of the 9th sternite. 

Female, similar to the male but larger, the yellow color of the abdominal 
tergites not so apparent. 

Holotype, male, Alajuela, C. R.; alt. 3,100 ft.; Sept. 15, '09 (Dr. 
P. P. Calvert). 

Allotype, female, near Cartago, C. R.; alt. 5,000 ft.; Dec. 15, '09; 
south slope of Irazu, over mud (Dr. P. P. Calvert). 

Paratypes, male, with the holotype in the author's collection. 
Female, Laguna near Cartago; Feb. 26, 'io. 

Type in the collection Acad. Nat. Sci. Phil. 



122 Journal New York Entomological Society. t Vo1 - XXIL 

Gonomyia recurvata differs from its nearest described relatives, 
amazona Alexander and pleuralis Williston in the male hypopygium, 
the two chitinized appendages to the pleurites, the extremely elongate 
and straight dorsal gonapophyses and the remarkable recurved ventral 
gonapophyse. 

Gonomyia (Leiponeura) calverti, new species. 

Puella group; basal antennal segments tinged with brown; male hypo- 
pygium without a recurved ventral hook; ventral portion of the hypopygium 
with two rounded, flattened lobes each of which bear 8 or 9 chitinized teeth. 

Male, length, 3.4 mm. 

Male. — Rostrum and palpi brown; the enlarged basal segments of the 
antennae brown, not orange, flagellum light brown. 

Mesonotal prsescutum very light grayish brown without distinct markings; 
the pronotum, a narrow lateral margin to the praescutum and the median line 
of the scutellum yellowish ; scutum and postnotum light brown ; scutellum yel- 
low, more brown at the base. Pleurae without distinct stripes. Halteres light 
brown, the knob yellow. Legs, light yellowish brown, the individual segments 
scarcely darkened at tip. Wings subhyaline with iridescent reflexions, veins 
brown, stigma lacking. 

Abdomen light brownish yellow, the tergites rather darker than the stern- 
ites. Hypopygium having the pleural pieces (fig. 7) long, slender, slightly 
curved, clothed with sparse long hairs; the tip is suddenly narrowed, more 
chitinized and ending in two long curved bristles. Ventrad of the pleurites 
is an enlarged cylindrical tube which is produced dorsally into a long obtuse 
point, and ventrally into two hand-like flattened organs armed with 8 or 9 
chitinized teeth as shown in fig. 8, d; these flattened organs are directed 
ventrad and entad. From inside this genital chamber, near the dorsal wall 
project two subchitinized elongate flattened appendages (c). 

Holotype, male, Alajuela, C. R.; alt. 3,100 ft.; Sept. 15, '09 (Dr. 
P. P. Calvert). 

Type in the collection Acad. Nat. Sci. Phil. 

This species is similar to puella Williston in its pleural and wing 
patterns but the basal segments of the antennae are suffused with 
brown and the hypopygium is very different from that shown in 
Williston's figure 1 which shows a prominent recurved ventral hook. 

Tribe Limnophilini. 
Genus LIMNOPHILA Macquart. 
Limnophila guttulatissima Alexander. 

One female from Cartago, C. R., along a ditch on Feb. 26, 191 0. 

1 Trans. Ent. Soc. Lond., 1896, pp. 288, 289, pi. 10, fig. 60 a. 



June, 1914.] Alexander: Craneelies From Costa Rica. 123 

Tribe Hexatomini. 
Genus ERIOCERA Macquart. 

Eriocera exquisita new species. 

Wings uniform dark brown ; color entirely reddish orange except the 
mesonotum which is dark brown ; no black on abdomen. 

Male, length, 11. 6-1 3 mm.; wing, 11. 5-1 2.4 mm. 

Male. — Rostrum reddish brown ; palpi short, basal segment orange, tip 
brown; first segment of the antennae orange, second segment light reddish 
brown ; flagellum dark brown ; head orange, the frontal tubercle small, scarcely 
notched in front. 

Pronotum light yellowish orange. Mesonotal praescutum dark chestnut 
brown on the sides, the middle line broadly paler, .brightest, almost orange, 
in front, indistinctly divided by a median line; scutum dark brown; scutellum 
and postnotum yellowish orange. Pleurae light orange yellow. Halteres 
black. Legs, coxae yellow, trochanters, femora, tibiae and tarsi brown. Wings 
uniform dark brown, veins brown. Venation as in fig. 5. 

Holotype, male, Alajuela, C. R.; alt. 3,100 ft; Sept. 9, '09 (Dr. 
P. P. Calvert). 

Paratypes, 2 males, with the type. 

Type in the collection Acad. Nat. Sci. Phil.; one paratype in the 
author's collection. 

Subfamily TIPULIN^. 

Tribe Dolichopezini. 

Genus BRACHYPREMNA Osten Sacken. 

Brachypremna dispellens Walker. 

One male from Bonnefil farm, Rio Surubres, C. R.; alt. 700 ft.; 
Oct. 19, '09 (Dr. P. P. Calvert). 

Tribe Tipulini. 

Genus TIPULA Linnaeus. 

Tipula obliquefasciata Macquart. 

One female from Cachi, C. R.; Mar. 8, 'io. 

Explanation of Plate 2. 

Fig. 1. Wing of Rhipidia (Conorhipidia) punctipennis n. sp. 

Fig. 2. Wing of R. (Rhipidia) costalis Williston. 

Fig. 3. Wing of Rhabdomastix (Rhabdomastix) septentrionalis n. sp. 

Fig. 4. Wing of Molophilus orion n. sp. 

Fig. 5. Wing of Eriocera exquisita n. sp. 



124 Journal New York Entomological Society. [ VoL xxii. 

Fig. 6. Hypopygium of Gonomyia (Leiponeura) recurvata n. sp. Ventral 
aspect ; a, pleural pieces ; b, dorsal apical appendage ; c, ventral apical append- 
age ; d } intermediate apical apendage ; e, dorsal gonapophyse ; /, ventral gona- 
pophyse; g, penis-guard. 

Fig. 7. Hypopygium of G. (L.) calverti n. sp. Dorsal aspect of the 
pleurite. 

Fig. 8. Same as last.* Lateral aspect of the end of the abdomen, a, pleu- 
rites from the side ; b, dorsal wall of the genital chamber ; c, gonapophyse ; 
d, ventral arms. 

Fig. 9. Hypopygium of Molophilus orion n. sp. Ventral aspect of the 
ventral apical appendage. 

Fig. 10. Thorax of Rhipidia (Conorhipidia) punctipennis n. sp. Lateral 
aspect showing the conspicuous dorsal protuberance. 



DESCRIPTIONS OF GALL MIDGES. 

By E. P. Felt, 

Albany N. Y. 

The following descriptions of species are mostly based upon a 
remarkable collection made by Mr. C. P. Alexander in Fulton County, 
N. Y. Mr. Alexander succeeded in taking both sexes of the striking 
Didactylomyia longimana Felt, the female being previously unknown, 
and also obtained a series of the peculiar Karschomyia viburni Felt, 
the female of which had not been recognized before. 

Colpodia americana new species. 

This species is described from a male taken by Mr. C. P. Alexander 
August 14, 1909, on the east shore of Woodworth's Lake in the 
Adirondacks, altitude 1,550 feet. This form is related to C. trifolii 
Felt. It is larger in size, differs in coloration and exhibits a marked 
divergence in the structure of the genitalia. 

Male. — Length 1.2 mm. Antennae more than twice the length of the body, 
sparsely haired, fuscous yellowish; sixteen segments, the fifth with a stem 
twice the length of the basal enlargement, which latter has a length one-half 
greater than its diameter. Palpi ; first segment with a length about four times 
its diameter, the second as long as the first, stouter, the third a little longer 
than the second, the fourth one-half longer than the third, more slender. 
Mesonotum light brownish yellow. Scutellum and postscutellum whitish yel- 
low. Abdomen fuscous yellowish, the apex recurved dorsally. Halteres and 



Journ. N. Y. Ent. Soc. 



Vol. XXII. PL II. 




Costa Rican Tipulidae.