84 ENTOMOLOGICAL NEWS [xxxii, '21 



slender whitish hairs, legs hyaline. Size .77 mm. x .23 mm. Twenty-four 

 hours after hatching the larva is white with a gray head. The lateral 

 pairs of thoracic and abdominal tubercles are white, the dorso-lateral 

 and medio-dorsal gray. The tubercles bear whitish hairs and those of 

 the lateral rows are the longest, about seven-eighths the length of the 

 anterior margin of the pro-thorax. 



After each molt the body color of the larva is gray with a median 

 lighter stripe, the general color becoming paler as the instar progresses, 

 so that at the end of each instar the insect is white. Following the first 

 molt the larva measures about 1.6 mm. x .55 mm., following the second 

 about 2.2 mm. x .62 mm., and following the third about 2.7 mm. x .8 mm. 

 The full-grown larva measures 3.1 mm. x 1.2 mm. It is elongate, 

 sordid white, the eyes black, the head gray. The thoracic sclerites have 

 ovoid, dusky gray tubercles armed on the margins with rather long pale 

 hairs. The medio-dorsal and dorso-lateral tubercles of abdominal seg- 

 ments 2 to 7, inclusive, are circular and gray, the color on those of seg- 

 ment 7 inconspicuous ; segment 1 has a pair of medio-dorsal gray tuber- 

 cles and the dorso-lateral pair yellow. On each lateral margin is a row 

 of sordid white tubercles. Each tubercle bears several pale hairs, those 

 on the lateral tubercles being longest. Legs sordid whitish, coxae gray. 

 Venter white. 



Following the fourth molt or ecdysis the insect becomes a pupa. The 

 fupa is short, oval, sordid white or whitish gray in ground color; head 

 white, eyes black ; prothorax white, the margin sometimes light gray ; 

 wing pads gray, darker towards the apices ; legs whitish ; second abdom- 

 inal segment bears two small, light gray spots, one on either side of the 

 medio-dorsum ; third segment with 6 sub-circular black spots in a trans- 

 verse row, innermost pair largest, outermost pair smallest; fourth seg- 

 ment with four smaller black spots corresponding to the two inner pairs 

 on preceding segment ; venter whitish ; short whitish vestiture occurs all 

 over the body. Darker individuals have six black spots on segment 2 

 and on the fifth segment four spots like those on the fourth, also two 

 small blackish spots at the medio-dorsum of the suture dividing the 

 second and third thoracic sclerites. Length of pupa 1.9 mm. to 2.1 mm. 

 Width 1.2 mm. to 1.3 mm. Height .85 mm. to 1.05 mm. 



The adult beetle, which emerges from the pupa, is convex and broadly 

 oval ; the pronotum subimpunctate, whitish with a median and four 

 other brown spots arranged in a semi-circle and sometimes coalescing 

 into an arc; elytra whitish or yellowish-white, each with three brownish- 

 black subcircular spots, two variably shaped light brown spots and a 

 median light brown vitta ; the maculation of the elytra is variable as to 

 the relative sizes of the spots, but the markings occupy a collective area 

 slightly greater than that of the pale ground color. Antennae and legs 

 yellowish-brown. Venter of thorax and abdomen dark brownish-black. 



