20 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 94 



median patch of fine, short hair. Fifth sternite with a transverse 

 patch of asperities along the posterior margin from which arise mod- 

 erately long, fine hair. Sixth sternite with a median longitudinal 

 groove. Pygidium convex, coarsely and rather densely punctured on 

 basal half, very sparsely punctured on apical half, apex subtransverse 

 and slightly lipped. Anterior tibia slender, bidentate, second segment 

 of anterior tarsus elongate oval, about three times as long as wide. 

 Aedeagus, figure 12. 



Female. — Antennal club a little shorter than second to seventh 

 segments combined. First to fifth sternites unmodified, sixth sternite 

 with a broad semicircular emargination on free margin. Pygidium 

 conical with apex replaced by a deep hemispherical cavity bounded 

 at sides by blunt crests, below by an acute and somewhat produced 

 margin. Anterior tibia stout, tridentate. 



Length. — 14 to 15 mm. 



Type localities. — British Honduras, R. Sarstoon ; Guatemala, near 

 city, Duenas, Capitillo. 



Type. — In the British Museum. 



Material examined. — Two specimens, male and female, from Gua- 

 temala (Salle), apparently paratypes, loaned for study by the British 

 Museum ; three males and four females from Palin, Guatemala, 

 May 1924, W. M. Mann; three males and one female from Teguci- 

 galpa, Honduras, May-June, 1917, F. J. Dyer; one male from Finca 

 Gibraltar, Mexico, September 19 10, in collection of L. W. Saylor. 



In the Honduras specimens noted above, the aedeagus differs from 

 the Guatemala type in that the triangular tooth at the middle of the 

 outer margin of each lateral lobe is somewhat accentuated. A separate 

 name for each race does not seem necessary. 



I also refer to this species a single female from Cacos, Trece 

 Aguas, Alta Yera. Paz, Guatemala. The specimen is evidently ab- 

 normal, as the head is very asymmetrical, the clypeus projecting 

 forward nearly twice as far on the right side of the head as on the 

 left. The pygidial characters are like those of the other female speci- 

 mens but are less accentuated. 



