218 PROCEEDINGS OF THE NATIONAL IVIUSEUM vol. 99 



Four specimens, San Mi<?iiel, Peru, two collected on September 1. 

 1911, and the other two, including the type, in July 1911, by the Yale 

 Peruvian Expedition, at G,000 feet. One paratype in the collection 

 of the author. 



These specimens suggest T. rufovanus Kirsch, described from Peru, 

 because one of them has black patches on the elytra placed as called 

 for in the original diagnosis of this species, but mirus differs by having 

 the tibiae and base of femora darker, by having the pronotum not 

 densely pitted, the elytra elongated, the femoral teeth, of which four 

 are well developed, different, and in being larger. 



TACHYGONUS COMPTUS, new species 



Figure 25 



Shiny black; anterior and intermediate legs yellow, with apex of 

 the tibiae usually dark and with various whitish hairs, and two fringes 

 formed by curved and golden hairs, one fringe on inner edge and ex- 

 tending entire length of tibiae, the other, on outer edge, short, apical 

 and extending to a little above the tibial claw; all the tarsi dark with 

 last segment paler. 



Head strongly pitted, sparsely so on sides, and there with small 

 pectinate scales. 



Rostrum smooth, shiny and dark, slightly ferruginous at apex. An- 

 tennae light yellow. 



Prothorax black, shiny, pitted, dorsal pitting smaller, flanks with 

 abundant pectinate white scales. Flanks of meso- and metathorax, 

 and posterior margins of abdominal segments with dense pectinate 

 white scales which in some places form layers. 



Elytra black, cordiform, the white postscutellar patch well marked, 

 each sutural interval with a series of white setae, the setae crossing 

 in about apical half of elytra. 



Posterior femora armed with a series of numerous small tubercles 

 and with four well-developed teeth, a subapical pair of which the 

 inner tooth is a good deal larger than outer, a rather long submedian 

 tooth, and, in line with it, a smaller one at about basal third; distad 

 of the subapical pair of larger teeth are two or three small teeth on 

 inner edge. Hind tibiae more or less thickened, with numerous 

 tubercles on external and internal margins; white and brown hairs 

 spread over femora and tibiae. Hind tarsi covered with pale hairs, 

 dark, the last segment yellow. 



Length 2.1T mm. ; width 1.41 mm. 



r?/;?e.— U.S.N.M. No. 58190. 



Five specimens; four, including the type, from San Miguel, Peru 

 (G.OOO feet), September 1, 1911, and one specimen from Paltaybamba 

 (5,000 feet), August 6, 1911, Yale Peruvian Expedition. One para- 

 type in the collection of the author. 



