424 THE XOltTH AMERICAX EMl'lD.E—COQriLLETT. vol. xvi.i. , 



RHAMPHOMYIA DUPLICIS, new species. 



Male.—\iQ-Ai{ black, lightly gray pollinose, eyes contiguous, upper 

 facets much larger than the lower ones; anteniue black, third joint 

 sublanceolate, style one-fourth as long as the third joint; proboscis 

 slightly longer than height of head, palpi black. Thorax black, sub- 

 shining, except two vittic and the lateral margins which are gray i)olli- 

 nosc; pile rather abundant and long, black; pleura black, opaque dark 

 gray pollinose, its pile black; scutellum black, subshiniug, bearing six 

 bristles. Abdomen depressed at base, then compressed, black, opaipie 

 grayish black pollinose, its pile black; hypopygium small, porrect, 

 upper lamella^ longer than the middle ones, apex of lower lamella bear- 

 ing a very slender, long, upwardly curving seta; central filament rather 

 thick, hidden except on its basal third. Legs shining black, rather 

 slender, simple; front and middle metatarsi of an equal size, hind 

 metatarsi over twice as thick as, and one-half longer than, the others. 

 Knob of halteres black. Wings gray, stigma and veins dark brown, 

 fourth vein entne. 



J^,'>/irt/<'.— Differs from the male as follows: Abdomen depressed, 

 tapering to the apex; middle metatarsi slightly thicker than the front 

 ones; under side of middle and hind femora ciliate with nearly erect 

 scales; wings uniformly grayish brown. 



niiws.—^o^. 3205 and 3206, T.S.N.M.; length. 4 to 5 mm. Two 

 males and two females cai>tnred l)y the Mriter in February and March. 



Locality. — Southern California. 



RHAMPHOMYIA BIFILATA, new species. 



.l/rt/(^— Head black, opacpie, gray pollinose, eyes contiguous, upper 

 facets much larger than the lower ones; antenufc black, the third joint 

 contracted on its uiuler side, then of nearly an equal width; style one- 

 fourth as long as the third joint; proboscis nearly one-half longer than 

 height of head, palpi black. Thorax, pleura, and scutellum black, 

 bluish gray pollinose, subo]^aque; pile black, on the thorax long and 

 rather abundant; scutellum bearing four bristles. Abdomeu com 

 pressed, black, opaque, grayish- white pollinose, its pile black; hyi)o- 

 pygium rather small, porrect; ui)per lamella- narrow, slightly longer 

 than the middle ones; the latter broad, obli(iuely subtruncated at apices, 

 the lower corner produced beyond the upper one, and rounded; a long, 

 slender, upwardly curving seta issuing from apex of lower lamella'; 

 central filament rather thick, hidden except on its lower third. Legs 

 black, simple, hind tibia- greatly thickened on the apical part and 

 densely long black pilose; front and middle metatarsi subequal in size, 

 the hind ones nearly three times as thick and one-fourth longer than the 

 others; all the tibia^ with many long black pile. Knob of halteres 

 black. Wings whitish hyaline, stigma obsolete, veins brown; fourth 

 vein entire. 



