24 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 7S 



ity on the outer side near their apices, their length measuring about 

 three-fourths that of the fourth segment; outer forceps broad, 

 tapering but slightly to blunt rounded points. 



Length, 5-8 mm. 



The species appears to be widely distributed over the United States. 



9. ACHAETONEURA TEXANA, new species 



Front at vertex in both sexes 0.41 the head width ; front, face, and 

 postorbital region deep golden pollinose, facial depression less so; 

 frontal vitta in male one-fourth the frontal width, in female some- 

 what wider. Lowest and uppermost frontal bristles strongest, the 

 intermediate ones weak, facial ridges bristly a little over one-half 

 way in male, in female nearly three-fourths way. Bucca about one- 

 eighth the eye height, palpi yellow, swollen at tip and in male 

 thickly clothed with short black hairs which give it a very dark 

 appearance. 



Thorax black, gray pollinose, bearing four dorsocentral and four 

 sternopleural bristles; scutellum with four pairs of marginal 

 bristles besides the apical pair which in the type specimen are 

 parallel and directed upward, in female decussate. 



Abdomen black, gray pollinose, anal segment golden pollinose; 

 first and second segment with median marginal bristles, third with 

 a marginal row of strong bristles which are longer than any of 

 those of the fourth segment; fourth segment bristly on apical two- 

 thirds. 



Mid tibiae with one long and one shorter bristle above it on the 

 outer front side near middle. Hind tibiae evenly ciliate with one 

 longer bristle. Front pulvilli of male less than the length of the 

 last tarsal joint. 



Genitalia apparently as in arehippivora. 



Wing venation normal, hind cross vein noticeably sinuate. 



Length, 9-10 mm. 



Described from one male collected at Dilly, Texas, labeled "LI, 

 1924, #2 Reinhard " and one female labeled : " Dist. Fedrl. Mex. 

 L. Conradi, Collector— 37." 



ry;?e.— Male. Cat. No. 43052, U.S.N.M. 



10. ACHAETONEURA WESTONIA, new species 



Front of male 0.47 the head width; inner eye margins nearly 

 parallel ; facial ridges bearing two rows of irregularly placed bristles 

 which extend three-fourths way to base of antennae; parafacials 

 broad, at narrowest part each one-half as wide as the facial depres- 

 sion ; bucca one-third eye height ; vibrissae on level with oral margin ; 

 antennae black, five-sixths the length of face; third joint over six 

 times the length of second ; palpi yellow, slender, not swollen at tip. 



