136 LEXG AND HAMILTON. 



does not attain the margin, the apex behind tlie declivity is white 

 mottled with dark pubescence, and the striate punctuation of the 

 elytra is feebler and more confused. In 2^arvidii>i the punctuation 

 is as in mixtus, but there are no well-marked bands of pubescence, 

 the surface of the elytra being irregularly mottled. The thorax of 

 the % is very closely aciculate, that of 9 smooth. On pear trees 

 (Leng); in dead branches of willow (Chittenden).] "Ham," 



I*, oregonus Lee, 1861, Proc. Acad. Sci. Phila. p. 254. 



Length 8-9 mm. = .32-.36 inch. Habitat. — Oregon. California, Idaho (Beaver 

 Canon) Schwarz. 



[Black, erect black hairs very long, thoracic disc without distinct 

 tuberculation ; elytra parallel, rounded at apex, sides nearly vertical, 

 separated from the disc by a humeral carina, punctuation coarse, 

 sparse, evanescent at apical third, three rows of small black pubes- 

 cent points, these are sometimes absent, sometimes strong and mixed 

 wdth white simulating costse ; thorax, scutellar area of the elytra, 

 broad undulated band across middle and many spots in the apical 

 area black from denudation ; basal and apical thirds, except the de- 

 nuded spots, clothed with white pubescence ; antennae slender, testa- 

 ceous, the joints fuscous at apex ; legs spotted and with long flying- 

 white hairs.] " Ham." 



P. TOlitans Lee, 1873 {Lophopmum), New Species (S. M. C. No. 264), p. 232. 

 Length 5-8 mm. = .20-.32 incli. Habitat. — Lower California, Cape San Lucas. 



[Clothed with pale brown pubescence, which is mottled on the 

 thorax with darker ; the base, sides and apical region of the elytra 

 are dark and mottled with still darker spots ; an elongate common 

 stripe of gray emarginate in front and at the sides extends from the 

 humeri to apical third, and is limited externally in its basal half by 

 the inner humeral carina.] " Ham." 



E€YRUS LeConte. 



[In this genus the antenuie are very hairy, the anterior tibite sud- 

 denly thickened at apex, tiie thorax cylindrical and unarmed, the 

 femora clavate, the vertex between the eyes impressed, and the tips 

 of the elytra roundedly truncate. 



The three species at present known in our fauna maybe separated 



thus: 



Pubescence sil veiy white lasciatus. 



Pubescence cinereous. 



Thorax moderately i)unctured <lasyceru$i. 



Thorax with only a few punctures at the sides exigiius. 



