250 MEMOIRS ON THE COLEOPTERA 



Judolia trajecta n. sp. General form and coloration as in pacifica 

 but more convex, black, the elytra pale straw-yellow, with an almost 

 even parallel transverse black fascia from side to side at basal fourth, 

 the two post median spots and black apex nearly as in pacifica, convexa 

 and instabilis; head and prothorax strongly, very densely punctured but 

 with the pubescence sparser, less pale in color and much less conspicuous, 

 not at all concealing the sculpture; antennae (cf ) moderately long and 

 slender, filiform, not quite as long as the body; prothorax wider than 

 long, strongly campanulate, with laterally prominent acute basal angles 

 and a feeble lateral protuberance before the middle, nearly as in pacifica; 

 elytral punctures nearly as in convexa but stronger and differing but 

 little in size anteriorly and posteriorly, separated by about twice their 

 diameters throughout; abdomen rather closely and subasperately punc- 

 tulate, the last segment obtusely rounded, feebly impressed apically. 

 Length (cf ) 9.5 mm.; width 4.0 mm. Colorado (Boulder Co.). 



The hind tibiae of the male are as nearly as possible completely 

 unmodified, the inner serriculate edge being scarcely traceable; the 

 elytral apices are evenly and narrowly rounded. 



Judolia convolvens n. sp. Narrower and more parallel than the 

 preceding species, black throughout, the elytra tawny yellow, maculate 

 with black in a broad vitta from the humeri to slightly behind basal 

 fourth, there becoming transverse, ending obtusely near the suture, also 

 a large rounded marginal spot just behind the middle and a broad apical 

 region, the suture pale (cf ) or narrowly black and with all the markings 

 slightly more extended ( 9 ) ; pubescence pale, rather long but not dense, 

 herissate on the anterior parts; head very densely punctate; antennae 

 (cf ) slender, filiform, the outer joints somewhat keeled on the inner 

 sides, four-fifths as long as the body, or ( 9 ) half as long as the body, 

 with the outer joints notably short; prothorax very convex, with strong 

 punctures, which are dense throughout, except medially in the male 

 alone, where they are noticeably separated, the sides parallel basally, 

 straight and converging in a little less than apical half, the basal angles 

 obtuse, not prominent; elytra two-fifths wider than the prothorax, twice 

 as long as wide, cuneiform, narrowly truncate at tip, with rather strong 

 and close-set punctures, becoming fine apically; abdomen finely, closely 

 punctulate and with rather long close decumbent pale hairs, the last 

 segment (cf ) broadly lobed medially at apex and broadly concave, the 

 concavity moderately deep, ill-defined. Length (cf 9 ) 9.0-9.5 mm.; 

 width 3.2-3.3 mm. California (Siskiyou and Lake Cos.). 



Allied rather closely to quadrillitm Lee., but differing in the pale 

 and not black ground color of the elytra, still more narrowed and 

 prolonged front, this being quite as developed as in many species 

 of Ophistomis, in the somewhat less slender antennae, more distinct 

 obtuse angle at the sides of the prothorax and denser, finer punctula- 

 tion and more conspicuous vestiture of the abdomen. The hind 



