TRIBE VII. HYLESININI. 667 



become confluent along the middle, and only the pupal chambers 

 are isolated. Under the name glaljratus (with pinifcx cited as a 

 synonym, Hopkins (1893-a) gives dates for appearance of adults 

 May 3 June 29, young larvae, June 13, full grown larvae, July 14, 

 pupae, October 4. In West Virginia it mines under green bark 

 at base of dying pines, also on logs and stumps. 



1078 (9166). HYLUIJUOPS RUFIPES* Eichhoff, 1868, 147. 



Cylindrical. Brownish-black, opaque, thinly clothed with short, stiff 

 yellowish hairs. Has a deceptive resemblance to PhlrcopMliorus frontalis, 

 separable, however, by the antennas having 7-jointed funicle and club sub- 

 ovate, nearly twice as long as wide, and more shining toward base. Head 

 convex, visible from above, thickly punctured; beak short. Thorax nearly 

 as long as wide, narrowed in front, sides subsinuate near tip, densely but 

 not finely punctured, with a very narrow faint dorsal carina. Elytra with 

 striae composed of deep subquaclrate punctures, intervals narrow, rough 

 with transverse rugosities. Length 2 2.5 mm. 



Frequent throughout Indiana, Jan. 17 Oct. IS; on fungus- 

 covered elm stumps, under bark. Atco, N. J., April 9, on wild 

 cherry. (Wenzel.) Described from Pennsylvania by LeConte. 

 New York and West Virginia, northward to Canada. Food 

 plants, Vlmiis and Fraxinus. H. opaculus Lee. (1868, 170) is a 

 synonym. 



V. HYLASTES Erichson, 1836. (Gr., "woodman.") 

 This genus, after separating those which precede it, includes 

 those Ipini in which the special modifications of the subfamily 

 are least developed and the resemblance to Cossoninae is greatest. 

 The antennal grooves of the short, stout beak, the dilated, emar- 

 giuate but not bilobed third joint of tarsi, the exserted prominent 

 head, the absence of tubercles and spines on thorax and elytra, 

 are all characteristic of its position near one end of the family. 

 The characters which specially separate it from the preceding 

 genera are the contiguous front coxae; first and fifth ventral 

 segments longer than the others, mesosternum not protuberant, 

 and particularly the base of elytra in a straight line, not sepa- 

 rately rounded as in Hylurgops. 



KEY TO EASTERN .SPECIES OF HYLASTES. 



a. Beak carinated. 



&. Thorax densely coarsely punctate; elytra subdepressed, striae coarsely 

 punctate, intervals narrow, granulate-rugose. 1079. PORCULUS. 



lib. Thorax less deeply punctate; disc of elytra convex, narrow; striae 

 finely punctate, intervals wider, coarsely transversely rugose. 



1080. SALEBROSTJS. 



*In recent correspondence Dr. Hopkins refers this species to Hylesimtf. 



