18 PROCEEDINGS OF THE XATIOXAL MUSEUM vol.74 



except a narrow front edge, the yellow color, however, continuing: to 

 the apex on the venter. Bristles of abdomen as described above, a 

 single lateral on the first and second segments ; one ventral pair on 

 the first, second, and third segments arising from the margins of the 

 tergite. which come entirely together; third segment with a marginal 

 row of six or eight. 



Legs yellow, tibiae somewhat infuscated, tarsi black; front tibia 

 with one outer bristle, middle tibia with one on outer front, one on 

 inner front, none on inner hind sides; hind tibia on the outer hind 

 side with a row of small slanting bristles from base to middle, the 

 last larger; also one small on outer front side and one very small on 

 inner hind side before the middle. 



Wing broad, somewhat infuscated throughout along the veins and 

 the apical part before the third vein more uniformly so; fourth vein 

 with rounded bend, thence with very slight concavity, ending consid- 

 erably before the apex; the first posterior cell open, hind cross vein 

 almost straight, joining fourth vein at two-thirds of the distance from 

 the small cross vein to the bend. First vein bare, third with coarse 

 hairs almost to the cross vein. No costal spine. 



Length, 8 mm. 



Male. — The third antennal joint is entirely yellow, the thoracic 

 chaetotaxy is considerably damaged, but agrees in large part, other- 

 wise as in female. 



Not represented in the United States National Museum. 



123. XANTHODEXIA FLAVICORNIS Brauer and Bergenstamm 



Minthodexia flaacornis Bracer and Bergexstamm, Zweifl. Kais. 3Iiis.. pt. 5, 

 1891, p. 376. 



Since the genotype of Minthodexia is identical with that of Xan- 

 thodeada I place this species provisionally in the latter genus. The 

 specimen is hardly in good enough condition to base a new genus 

 upon and perhaps in spite of the hairy first vein it should be allowed 

 to remain here. The type, which is a female from Venezuela (Lindig. 

 1864) has been quite badly broken and the third antennal joint is 

 now gone. The head apparently has about the same shape as in the 

 female of sericea, but the uppermost of the two orbitals is strongly 

 reclinate (lower broken off) ; the ocellars are very minute and hair- 

 like, proclinate. The scars show two verticals close together on each 

 side, some distance in front of which there is one strong reclinate 

 bristle, followed by one equally strong which is proclinate ; somewhat 

 farther forward are two orbitals, the upper large and reclinate, the 

 lower represented only by a scar; below these and closer to the middle 

 are two. more frontals (scars) the lowest rather large and just on 

 a level with the upper edge of the first antennal joint ; the frontal 

 stripe seems to blend with the parafrontals and is hairy to the center. 



