56 Journal New York Entomological Society. [Vol. xin. 



4. Grabhamia varipalpus Coq. from British Columbia. 



5 Grabhamia citrriei Coq. from California. 



6. Pncumaculex signifer Coq. from Virginia. 



7. Stegomyia fasciata Fab. from Texas. 



8. Fellidia cyanescens Coq. from Texas. 



9. Feltidia signipennis Coq. from Mexico. 



10. Theobaldia incidens Thorn, from British Colombia. 



11. Mclanoconion atraias Theob. from Jamaica. 



12. Cnlex tarsalis Coq. from California. 



NEW NEMATOCEROUS DIPTERA FROM NORTH 



AMERICA. 



By D. W. Coquillett, 

 Washington, D. C. 



The present paper is founded primarily on collections made during 

 the summer of 1903 by Messrs. R. P. Currie, H. G. Dyar and A. N. 

 Caudell in British Columbia, and by Mr. H. S. Barber, chiefly in 

 northern California. Messrs. Currie and Barber paid especial atten- 

 tion to the Diptera and succeeded in obtaining many rare and inter- 

 esting specimens. Only those belonging to the section Nemocera 

 have as yet been studied and the descriptions of the new species are 

 appended herewith. To these are added descriptions of several spe- 

 cies received from various sources, bringing the number of new spe- 

 cies described in this paper up to 41. 



Dicranomyia signipennis, new species. 



Distinguished from the described species by the spotted wings in connection with 

 the short auxiliary vein, the apex of which is very near the base of the second vein. 

 Brown, the humeri, scutellum, a spot in front of it, the genitalia, halteres and legs, 

 yellow, a black band before apex of each femur, apices of tarsi brown. Antenna? 

 reaching nearly to base of wings, joints three to thirteen of nearly an equal length, 

 the last three or four of these slightly longer than wide. Thorax opaque, grayish 

 pruinose, mesonotum marked with three blackish vittre. Hypopygium of male rather 

 small. Halteres not unusually long. Wings glabrous indistinctly mottled with pale 

 gray and whitish hyaline, stigma brown, a brown cloud at apex of auxiliary vein, 

 another at forking of second and third veins, one on vein at base of discal, extending 

 over small and hind crossveins, a fourth on veins at apex of discal cell ; marginal 

 crossvein close to apex of first vein, auxiliary crossvein close to apex of the auxiliary 

 vein, first section of second vein one and one half times as long as first section of the 

 third, base of discal cell far beyond base of the submarginal, discal cell closed. 

 Length 7 mm. 



