NORTH AAIIOKrCAN COLICOPTIOUA. 257 



]4. — Tliorux without distinct basal niavgiiial line 21. eontiiiiK. 



Thorax with nearly entire hasiil marginal line. 



Form oblong, elytral intervals on the disc fiat and broader than the 



striae 22. eloiigatula. 



Form oval, robust, elytral intervals convex ami scarcely wider than the 



striiB (small species) 23. tlispar. 



15. — Basal marginal line of thorax distinct; antennte and legs entirely yellow. 



21. quaclricolliM. 



Basal marginal line indistinct ; outer joints of antenme and all the femora 



piceous 25. (locipiciis. 



1. V. cribrata Lee. Oblong oval, convex, brassy bronzed, shining. An- 

 tennse rufotestaceous, the outer five joints piceous Head alutaceous, the front 

 coarsely and deeply punctate, with a median smooth space, vertex more finely 

 and sparsely punctate. Thor.ix about one- half wider than long, scarcely nar- 

 rowed in front, sides arcuate, disc moderately convex, basal marginal line visible 

 only near the hind angles, the surface rather closely punctate, the pum tures 

 moderate in size, a little coarser near the sides. Elytra not wider at ba.se than 

 the thorax, humeri very obliquely rounded, sides regularly arcuate, widest at 

 middle, disc punctato- striate, the punctures rather coarse and deep, and moder- 

 ately closely placed, the punctures of the striae from the suture a little beyond 

 the umbone very much confused, extending thus beyond the middle, intervals 

 slightly convex, impunctate. Body beneath piceous, faintly bronzed. Proster- 

 num and pleurae coarsely punctate. Abdomen moderately, closely, but not 

 coarsely punctate. Anterior and middle femora brown, the posterior piceous, 

 bronzed, tibiae and tarsi rufotestaceous. Length .08 inch ; 2 mm. 



This species is best known by the greater extent of the confused 

 punctuation of the elytra, but two of the stride reaching the humeri 

 at the sides and the irreguhir punctuation extending quite to tlie 

 declivity. Tlie surface is shining eveiywhere, while in cribratu-i the 

 sides of the elytra are decidedly opaque. 



The type is from Massachusetts, and I have another specimen from 

 Oregon (no special locality) kindly given me by Mr. H. Ulke. 



2. <'. perlnrbata n. sp. — Oblong oval, convex, piceous, surface distinctly 

 bronzed and shining, the sides of the elytra more opaque. Antennae rufotesta- 

 ceous at base, the outer six joints piceous. Head alutaceous, the punctures mod- 

 erate in size, not dense. Thorax not much wider than long, sides arcuate, grad- 

 ually narrowed in front of middle, basal marginal line distinct at the sides, 

 surface shining, not distinctly alutaceous, punctures moderate in size, closely, 

 not densely placed, a little coarser along the base. Elytra not widtr at base than 

 the thorax, humeri oblique, umbone feeble, the punctures moderately coarse and 

 deep, much confused at base as far as the fifth or sixth stria and nearly to the 

 middle of the elytra, the striae at apex and sides regular, the latter deeply im- 

 pressed and more closely punctate, the intervals convex and without punctures. 

 Body beneath piceous, feebly bronzed, shining. Prosternum closely punctate, 

 the side pieces with few xiunctures. Abdomen rather coarsely and at the sides 

 closely punctate. Anterior and middle femora brown, posterior piceous bronzed, 

 tibiae and tarsi rufotestaceous. Length .08 .09 inch. : 2— 2.25 mm. 



TRANS. .\M. ENT. SOC. XVI 1 33) JUNE. IH.Sit. 



