WEEVILS OF GENUS TACHYGONUS — MONTE 



217 



sliiny, very little pitted, and bearing long brown hairs, which are pres- 

 ent also on elytra; flanks of prothorax ferruginous, densely covered 

 with white pectinate scales, which extend along the basal margin. 

 The flanks of meso- and metathorax covered by dense white scaling, 

 forming layers. Elytra widened in front, narrowing toward the 

 apex, with numerous wide but shallow pits; interstices raised; base 

 dark, this color extending on external margins to nearly half the 

 length, declivity with two patches of the same color; postscutellar 

 region marked by two patches of white pectinate scales; lateral mar- 

 gins of elytra with a series of white pectinate scales ; sutural interstices 

 with a series of crossed white setae. In one of the para types the same 

 type of scaling can be noted on last interstices. Genital segment with 

 white erect hairs. 



Figure 23. — Tachygonus montanus, 

 new species, X5. 



Figure 24. — Tachygonus mirus, new 

 species, X5. 



Posterior femora with basal two-thirds dark and apical third fer- 

 ruginous and with white and dark hairs, the white ones more numer- 

 ous on basal two-thirds and the dark on apical third ; granulose, armed 

 with 4 long teeth, 2 of which are better developed and form a pair 

 at about apical two-sevenths, 1 tooth at middle, and another at basal 

 third, and also with a series of about 10 small teeth, some almost re- 

 duced to tubercles, the 2 near apex larger. Hind tibiae ferruginous, 

 dark on external margin, slightly spatulate, bearing various brown 

 hairs. Hind tarsi yellow, with plentiful white hairs. 



Underside of body dark. 



Length 2.39 mm. ; width 1.65 mm. 



ry;?e.— U.S.N.M. No. 58189. 



