1911] 



Hypera and Phytonomus in America 



127 



Elvira broadly elongate-oval, almost as wide at tip as at base, 

 humeri not prominent, elytra gradually widened for two-thirds of their 

 length and then abruptly obliquely narrowed to the truncate tip; stria 

 deeply punctured, interspaces elevated, the alternate ones beginning 

 with the sutural space more so, all with fine sparse punctures. Scales 

 of the elytra cleft to the base, fine and very elongate, making a dense 

 covering; long white hairs present on posterior portion of interspace-., 

 remainder of the elytra with interspaces having scattered black and 

 white hairs, more or less decumbent. 



Venter clothed with deeply cleft scales, very dense on the sternal 

 portion, rather sparse on the abdomen, last segment distinctly longer 

 than the two previous and in male with a shallow impression near the 

 center; third segment deeply impressed hack of the intercoxal process 

 which is broad and gradually curves until near the middle when it 

 abruptly terminates in a sharp triangular point. Male genitalia with 

 the stem broadly rounded at the point. Mesosternal process between 

 the middle coxae elevated, narrow linear. In the single female I have 

 seen there is at the apex of the seventh abdominal segment a dec].) 

 impression . 



Legs with femora black and densely clothed in front with deeply 

 cleft scales, tibia; and tarsi very dark red, clothed with fine long silvery 

 hairs, hind tibia? slightly curved, front tibiae more strongly so, hind 

 tibia? with a prominent mucronate process which at the apex is bifurcate 

 in the male; the process scarcely evident in the female. 



The tesselation in these specimens is remarkably different and con- 

 sists of a mixture of gray and brown scales with very small macula' 

 of black scattered over the interspaces; on the thorax there is an indis- 

 tinct trilineation, the outside paler lines being very narrow; some of the 

 scales are metallic. 



Map 6. Distribution of Phytonomus seriaius Mann. 



