34 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.46. 



it}^ of the produced front. Ocelli margined inwardly with black 

 crescents. Dorsum finely transversely striated. Mouth cone as 

 broad as long. Labrum sharply pointed, black at the tip. Labium 

 broad at the tip and broadly rounded, slightly overreaching the 

 labrum. Maxillary palpi stout, the first segment very short. Anten- 

 nae uniformly dark bro^vn. Sense cones simple, situated as follows: 

 Segment three bears three cones, one on the inner margin, one on the 

 outer margin, and one below, near the tip; segment four bears three 

 cones, which are situated as those on segment three ; segments five and 

 six each bear two cones, one on the inner margin near the tip and one 

 on the outer margin near the tip, the outer cone on segment six being 

 only about half as large as the inner. Seven and eight each bear a 

 small cone on the underside near the tip. Segments rather thickly 

 clothed with small gray hairs. 



Prothorax transverse, broadest behind, trapezoidal, anterior mar- 

 gin slightly concave in outline, posterior margin convex. Spines 

 present as follows: Posterior angular, posterior marginal, midlateral, 

 anterior marginal, and anterior angular. Posterior angular and pos- 

 terior marginal alone stout. All spines light yellow and blunt. One 

 small stout spine stands on outer angles of fore coxse. Mesothorax 

 slopes gradually to the angles, which are abrupt and slightly shoul- 

 dered. Sides of mesothorax parallel. Metathorax broadest at the 

 middle, at which point it is broader than the mesothorax, converging 

 from the middle to the articulation with the abdomen. Mesonotum 

 transversely striate and bearing only a few small spines. Metanotum 

 reticulate. Wings stout, reacliing about to seventh abdominal seg- 

 ment, the apical two-fifths broadened, color light gray, almost white. 

 Scale brown and a small area at base of fore wing brown, and bearing 

 three long, blunt, hyaline spines. Hind wing sunilar in shape to the 

 fore wing, and similarly colored, bearing two sharp spines in the 

 basal brown area, the proximal one being very small. Fringe on 

 borders of both wings thick, brown and long. Hind fringe on fore 

 wings double, subapically, for about 24 hairs. All legs dark brown, 

 only the tarsi being slightly lighter. Middle and hind legs of medium 

 size, fore legs heavy, the femora three-sevenths as broad as the head. 

 Fore tarsus with a strong sharp tooth which bears two setse, on its inner 

 side at the base. All legs clothed with a few small spines, and each 

 tibia near the tip bears several conspicuous, blunt, hyaline spines. 



Abdomen stout. Dorsum of first segment reticulate, and reduced 

 to a shield-shaped piece which is not more than one-third as broad as 

 segment two. Segments two to eight have a transverse thickening 

 near the anterior margin. Spines on sides cf segments few, only one 

 small, transparent, blunt spine noticeable on sides of segments six to 

 eight. Segment nine bears the usual circlet of six spines, which are 

 light yellow, long, and blunt. Ninth segment also bears several 



