150 PROCEEDINGS OF THE NATIONAL, MUSEUM vol. 65 



Head feebly convex, with a distinct longitudinal carina; surface 

 very coarsely and densely punctate, the punctures confluent and 

 forming smooth longitudinal rugae on the front, and sparsely 

 clothed with long erect cinereous hairs ; epistoma broadly and rather 

 deeply arcuately emarginate in front. Pronotum nearly two times 

 as wide as long, widest at base, slightly narrower in front than be- 

 hind; sides variable, feebly arcuately attenuate from base to apical 

 angles, or nearly parallel to apical third, then strongly converging 

 to the apex; posterior angles rather acute; anterior margin feebly 

 arcuately emarginate, with a broadly rounded median lobe; disk 

 obsoletely longitudinally sulcate at middle; surface coarsely and 

 deeply punctate, the punctures irregularly placed, rather widely 

 separated on the disk, but becoming denser and more confluent to- 

 ward the sides. Scutellum rounded and impressed at middle. 

 Elytra a little wider than pronotum at base, more or less dilated 

 behind the humeri, nearly parallel to apical third, then arcuately 

 attenuate to the tips, which are rounded, truncate, sinuate-truncate, 

 or somewhat bidentate; each elytron with four costae, suture and 

 lateral margin elevated, the costae smooth, rather flat, and sparsely, 

 coarsely, and irregularly punctured, intervals densely and coarsely 

 cribate. Abdomen beneath rather finely and densely punctate at 

 middle, the punctures becoming coarser and denser toward the sides 

 iind on apical segment, and sparsely clothed with long cinereous 

 hairs ; first segment feebly flattened at middle ; last segment rounded, 

 truncate or obsoletely sinuate at apex. Prosternum feebly convex, 

 dentate, and very coarsely punctate, and sparsely clothed with long, 

 erect cinereous hairs; anterior margin truncate; prosternal process 

 flat, broadly sulcate at middle, smooth at sides, and densely punc- 

 tured in the depression, parallel to behind anterior coxal cavities, 

 then abruptly attenuate to the apex, which is broadly rounded. 

 Anterior and middle femora feebly swollen at middle; anterior 

 tibiae feebly flattened at apex, but without a long hook; anterior 

 tarsi not distinctly broader than posterior ones. 



Female. — Usually more robust and not quite as densely pubescent 

 beneath as in tlie males. 



Length, 13-20 mm. ; Avidth, 5.5-8 mm. 



This is another North American species which was described by 

 Fabricius (1775) from Pennsylvania. It is rather common and is 

 distributed over the entire eastern North America from Canada to 

 Texas and westward to Missouri, the larvae inhabiting various species 

 of pine. Only one specimen Avas examined from the West Indies 

 and this was received from the British Museum and simply labeled 

 '' Haiti, Saunders 74-18." 



