1 68 Memoirs on the Coleoptera 



form; fifth antennal joint with a definite narrow area of dense 

 punctures of the same character as the larger densely pubescent 

 areas of the succeeding joints; prothorax three-fourths wider than 

 long, the rounded and moderately reflexed sides oblique and nearly 

 straight in basal half, the angles more narrowly rounded and more 

 produced behind than in debilis, very closely, subuniformly punctate 

 to the sides and base, more coarsely in the foveal region, which is 

 flat, the fovese not evident; elytra only a fourth longer than wide, 

 almost one-half wider than the prothorax, oblong-oval, with rather 

 well marked humeri; tegulae becoming very fine, feeble and ob- 

 solescent on the basal slope. Length (9) 154 mm.; width 7.3 

 mm. California (locality unrecorded) tegulatus Csy. 



Head not quite so large, three-fifths as wide as the prothorax, with 

 similarly only moderately convex eyes; fifth antennal joint without 

 trace of fine close punctures, excepting a very few on the upper 

 surface in a small and not sharply defined area; prothorax in outline 

 as in the preceding but somewhat shorter, four-fifths wider than 

 long; punctures somewhat close-set, moderately small, becoming 

 rapidly very coarse and rugose laterally, the reflexed margin more 

 broadly shining and impunctate than in the preceding; foveae 

 traceable but very shallow, the hind angles as in tegulatus; elytra 

 less broad, a third longer than wide, but little more than a third 

 wider than the prothorax; tegulae more truncate behind than in 

 the preceding, and, on the basal slope, remaining distinct and 

 elevated though smaller in size; narrow depressions of the surface 

 separating the tegulae with some barely glimpsible greenish lustre, 

 wholly unobservable in tegulatus; humeral angles more broadly 

 rounded. Length (9) 14.6 mm.; width 6.9 mm. California 

 (locality unrecorded) viator Csy. 



7 — Body stout, rather convex, deep black, shining, without trace of 

 metallic lustre, the surface separating the elytral tubercles dull or 

 subopaque; head well developed, fully three-fifths as wide as the 

 prothorax, with somewhat long wide neck, the eyes but very moder- 

 ately convex; surface with deep and moderate, close-set punctures 

 and some rugulosity throughout, the latter denser toward the eyes; 

 mandibles rather short, rugose, the outer outline circular; antennse 

 nearly as long as the head and prothorax, the fifth joint densely 

 pubescent on the edge in distal half, the pubescent areas of the 

 outer joints more extensive as usual; prothorax fully four-fifths 

 wider than long, widest more or less before the middle, the sides 

 subevenly arcuate but more converging basally, rather sharply and 

 evenly reflexed, the neighboring surface bearing numerous erect 

 setae throughout the length; basal angles rounded, only moderately 

 produced behind; punctures close-set, not very coarse, becoming a 

 coarse dense vermiculate rugosity laterally and basally, the foveae 

 narrow, feebly impressed, rather distant from the sides; scutellum 

 longitudinally strigilate; elytra two-fifths (cf) to between a third 

 and fourth ( 9 ) longer than wide, oblong-oval, with arcuate sides 

 and rather distinct humeri, the tegulae strongly convex, strongly 

 graniform and more separated laterally and apically; anterior male 



