398 PROCEEDINGS OF THE NATIONAL MUSEUM. voL.xxnf. 



ties, the large one at lower angle somewhat raised and with a smaller 

 one below it. Labial palpi considerabh' exceeding anterior trochanters. 



Pronotum with one transverse row of about fourteen bristles on 

 the disc, the one at each lateral angle large and long; hind margin 

 with a ctenidium of eighteen stout spines. Meso- and metanotum each 

 with three rows of l)ristles, the posterior row of twelve to fourteen 

 larger bristles, those of the second more numerous but smaller, and 

 the third of fewer and still smaller ones. Hind margin of metanotum 

 with a small tooth on each side, first tergite with two, second Avith two, 

 and third with one, on each side. Abdominal tergites each with 

 twelve to fourteen large bristles in one row, and a less number of 

 smaller bristles in the second row. Antepygidial bristles three on 

 each side, the middle one in each group largest. Abdominal sternites 

 each with two rows of bristles, the posterior of eight to ten larger, 

 and the anterior with eight to twelve smaller, rather scattered ones. 

 Beneath the pygidium on either side there is a group of live stout 

 bristles. The style is rather short and thick, with one long bristle at 

 apex, one on lower margin, and two on upper margin. The substylar 

 flap is apicalh' unusually broad, with the usual long bristles at 

 extreme tip, the lower margin with a group of short, slender, dark- 

 colored spines. 



Hind coxpe without minute teeth on inside. Hind femur with a 

 longitudinal row of four to five bristles on the side. None of the 

 apical spines on second joint of hind tarsi exceed joint III. First pair 

 of spines on last tarsal joint dislocated toward median line, though 

 not so distinctl}^ so on hind tarsi. Lengths of joints of hind tarsi in 

 the proportion 23-15-9-5-10. 



Length, 2.5 mm. Color, clear brown, darker dorsally. 



Male; Head flattered above as usual, the frontal notch much higher 

 on the front than in the female. Antennal groove reaching upper 

 margin of head. Antep^'gidial bristles three on each side, but the 

 outer two in each set aborted. Eighth tergite with two rows of four 

 to five stout l)ristles on each side near hind margin. 



Lateral portion of ninth tergite with a stout thumb-shaped lobe, and 

 the two usual bristles over insertion of upper claspers. The upper 

 claspers are long and slender, the upper end suddenly expanded, this 

 latter portion being acute angled in front and rounded behind, witli 

 two short, blunt, dark-colored teeth; near base on hind margin is a 

 stout straight bristle. The slender ventral style has a long and a short 

 bristle at apex, which stand out nearh' at right angles. 



Length, 2.3 mm. 



Ty2)e.—i:?it. No. 0906, U.S.N.M. 



