46 Bulletin of the Broioklyn Entomological Society Vol. XV 



is posterior to the middle, and which terminates in a slightly backward 

 pointing spine, the disc with a faint longitudinal median sulcus. Elytra 

 somewhat broader at base than prothorax, twice as long as broad, with 

 sides almost parallel at basal half and gradually narrower at apical half, 

 the apices rounded, the disc cinereous with a broad angulated darkly mar- 

 gined white bar just in front of the middle, a W-shaped black line between 

 center and apex, a white area margined behind with black near apex and 

 six rows of irregularly spaced black spots situated along the cosfse. Body 

 beneath and greater portion of legs densely clothed with a silvery white 

 pubescence. Male, length ii mm., breadth 2.5 mm.; female, length 13 

 mm., breadth 3.5 mm. 



Type male and female in my collection, received from Mr. H. 

 C. Muzzall who reared them at Carpenteria, Santa Barbara Co., 

 Cal., April 20, 1918, from dead limbs of the California live oak, 

 Quercus agrifolia Nee. Nine other specimens, also received 

 from Mr. Muzzall, are in my collection and I have seen another 

 collected by Mr. H. C. Kennedy on one of the Santa Barbara 

 islands which is now in the collection of Cornell University. One 

 of my paratypes will be deposited in the U. S. National Museum. 

 The specimens vary only slightly and that chiefly as regards the 

 intensity of the various shades of the color pattern. 



This, the largest species of the genus in this country, resembles 

 none of the other species very closely though it is perhaps closest 

 to L, variegatus Hald. in structure. It also approaches Lepto- 

 stylus and in color pattern simulates L. nebulosus Horn or in the 

 matter of design even more closely Acanthoderes decipiens Hald. 

 It is, however, a true Liopus as judged by its more typical char- 

 acters for it possesses a but slightly clubbed first antennal joint, 

 a distinctly spined prothorax, a triangular mesosternum and has 

 the first tarsal joint of the hind tarsi longer than the next two. 



Pogonocherus pilatei n. sp. 



Robust, piceous, antennae and bases of legs rufous, clothed with a gray 

 pubescence, variegated with black on the elytra, with a few scattered longer 

 hairs on the antennae, legs and entire upper surface, the hair gray in the 

 gray areas and black in the black patches. Head pubescent, the hairs 

 either white or black; antennae slightly longer than body in female and 

 distinctly so in male and annulated. Prothorax broader at middle than 

 long, lateral and discal prominences distinct but obtuse, the pubescence as 

 on head. Elytra twice as long as broad, very convex, tricostate, the outer 

 one distinct throughout length, the inner two distinct in apical half only 

 though evident even across the ante-median gray saddle, the innermost 



