70 PROCEEDINGS OF THE NATIONAL, MUSEUM vol. 68 



These soldiers are larger than the specimens of villosus^ collected 

 by Holmgren in Peru, and may be a new species. Doctor Mann col- 

 lected the two soldiers from which the above description was made 

 with workers at Uniao, Lower Rio Madeira, Brazil, in March, 1922. 

 These specimens are deposited in the collection of the United States 

 National Museum. 



Another known species of N eocapriterTnes which was also collected 

 is the very striking, flat-headed CapriterTiies {NeocapHtervies) 

 plajriiceps Emerson, found at Cavinas, Bolivia, soldiers and workers, 

 February, 1922; Cachuela Esperanza (Beni River), Bolivia, sol- 

 diers and workers, March, 1922. This termite was first found in 

 British Guiana. 



Genus ORTHOGNATHOTERMES Holmgren 



Species of the genus Orthogyiatlwtermes are restricted to Amer- 

 ica. Only four species have been described, three from South and 

 one from Central America. The elongate mandibles of the soldier 

 are not asymmetrical as in C apriteri)ies Wasmann and Neocapri- 

 tennes Holmgren; but are also bowed in the middle (with knees). 



ORTHOGNATHOTERMES BREVIPILOSUS, new species 



Soldier. — Head yellow-brown, darker (light castaneous-brown) 

 anteriorly, but lighter posteriorly, widest at middle, sides convex, 

 wider posteriorly^ than anteriorly, tapers to anterior margin, above 

 upper borders of antennal sockets flattened tubercles. Head with 

 eye spots? back of tubercles not very prominent; with scattered long 

 hairs and numerous (dense) short hairs. 



Labrum yellow-brown, broader than long, weakly 3 lobed, central 

 lobe largest, almost conical, with long hairs. 



Mandibles black, bases reddish-brown, elongate, bowed in middle, 

 with marginal tooth at the bend; strongl}^ incurved at the tips. 



Ant<?nna yellow-brown, 15 segements, pubescent; second segment 

 shorter than fourth; third segment shorter than second or fourth; 

 from fourth segment on segments become longer and broader: to- 

 Avard apex, however, segments become shoi-tei- and narrower. 



Pronotum yellowish, saddle-shaped, anteriorly emarginate, with 

 dense long hairs. 



Legs yellowish, claws brown, legs elongate, pubescent. 



Abdomen dirty gray-white with tinge of yellow, with dense long 

 hairs. 



Measurements. — 



Length of entire soldier, 8.50-8.75 mm. 



Length of liead with mandibles, 5.0-5.75 mm. 



Length of head without mandibles (to tip of labrum), H.8-.3.5 mm. 



Length of head without mandibles (to anterior). 3.05 mm. 



