28 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 93 



Although the additional notes by the writer are rather incomplete, 

 Zenillia lineata (Van dor Wulp) is a species with four postsutural 

 dorsocentral macrochaetae that in other respects closely resembles 

 Z. taglinoi. Van dor Wulp's specimen of coeruleiventris does not 

 have the brilliant green color that the pollen of the abdomen of 

 Z. taglinoi has. 



18. ZENILLIA FACIALIS, new species 



Male (type). — Head with front at narrowest 0.31 head width; 

 all bristles on head missing, but scars indicating frontal row of eight 

 bristles, extending from on a level with base of third antennal segment 

 to two reclinate pie verticals; ocellar, vertical, and perhaps weak outer 

 vertical bristles; parafacial with a few fine hairs on the upper part 

 which are directed downward; facial ridge apparently bristly on lowest 

 one-fifth; gena one-fourth eye height; first and second segments of 

 antenna yellow; third segment black, three times length of second; 

 arista missing; palpus yellow. 



Thorax golden-pollinose marked with at least four black mesonotal 

 vittae; scutelhim golden-pollinose, three pairs of marginal scutellars 

 and one strong decussate apical pair turned backward, one pair of 

 discal scutellars; pulvilli elongate, midtibia with one median antero- 

 lateral bristle, one strong inner ventral bristle; hind tibia unevenly 

 ciliate; wing with four bristles at base of third vein. 



Abdomen black with sides reddish, venter gray-pollinose ; basal 

 three- fourth of segments two and three and basal two-thirds of seg- 

 ment four yellow-pollinose overlaid with green; dorsum of first seg- 

 ment and apical margins of other segments shining black; first and 

 second segments with a pair, and third and fourth with a row of 

 marginal macrochaetae; discal macrochaetae lacking on second seg- 

 ment, a pair on third, and a row on fourth. 



Hypopygium with outer forceps broad, leaflike, and triangular; of 

 same length as the inner, which is curved inwardly at the tip. 



Length 10 mm. 



Type locality. — St. Lucrecia, Veracruz, Mexico. 



Type.— Male, U.S.N.M. No. 54138. 



Host. — Unknown. 



Remarks. — Described from a badly rubbed specimen collected Au- 

 gust 4, 1923 (E. G. Smyth). It was removed from Zenillia ochra- 

 cea material, but it is a decidedly distinctive species. 



An additional male in excellent condition was found in the collection 

 after the above-described male had been cataloged as the type specimen, 

 and it has been labeled as the paratype of No. 54138. It has eight 

 frontal bristles and the facial ridges are bristly on the lowest two- 

 fifths. Collected at Trujillo, Peru, December 14, 1938 (Jaynes). 



