40 TIIOS. L, CASE-J. 



jtointed out above to be of systematic importance. Besides tb.e differ- 

 ences noted above, there are variations to be observed in tl)e length 

 of the antennal club in the males, and in the structure of the labial 

 and maxillary palpi. 



There is anotlier form in which the sculpture is much smoother 

 than in fnsca, and which differs from that species in the much nar- 

 rower and more feebly toothed anterior tibiae ; also in the smaller 

 inner spine of that member. 



EURYItlETOPOX. 



E. piceiim n. sp. — Form moderately elongated, very convex, sides 

 nearly parallel ; setae of elytra so fine and sparse as to be scarcel3- discern- 

 ible. Body above and beneath rather pale rufo-piceous, elytra slightly 

 paler than the head and protliorax. Head much broader than long ; anterior 

 margin very broadly and evenly arcuate ; interocular surface rather convex 

 posteriorly, then rapidly declivous to within one-third the length of the 

 anterior margin, where it becomes nearly plane and feebly declivous ; very 

 coarsely, rather closely and unevenly punctate, punctures round and vario- 

 late ; supra-ocular longitudinal ridges very acute and distinct ; antennae as 

 long as the width of protliorax, second joint slightly more than one-half as 

 long as the third, third and fourtli narrower and equal in length, remaining 

 joints nearly equal in length, last three Hattened and slightly broader. Pro- 

 thorax four-lifths broader than long ; base very broadly and just j>erceptibly 

 angulate posteriorly, just visibly longer than the apex ; the latter transverse 

 and straight in the middle, slightly sinuate near the apical angles, slightly 

 longer than tlie width of head ; sides most strongly arcuate just in advance 

 of the middle, nearly straight near the basal angles, much more convergent 

 near the anterior angles ; disk very convex, narrowly margined at the sides, 

 margined along the base, border becoming much narrower toward the basal 

 angles ; coarsely and very irregularly punctate ; near the sides the punctures 

 are very large, somewhat conHueut, shallow, and variolate, in the middle 

 they are very much smaller, round, rather deeply impressed, and very sparse. 

 Scutellum very small, sides at first divergent posteriorly, then very broadly 

 angulate behind. Elytra at base as wide as the pronotum ; sides just per- 

 ceptibly divergent and feebly arcuate for three-fourths the length ; disk 

 somewhat acutely rounded behind, three times as long as the protliorax, 

 very convex, evenly punctate, punctures round, shallow and variolate, 

 small, and separated generally by three to four times their own widths ; 

 toward the sides, and more especially toward the humeri, the punctures 

 become much larger and closer ; the entire surface is also excessively feebly 

 and transversely rugulose. Under surface of the abdomen very sparsely and 

 minutely punctulale toward the base, much more strongly, coarsely, and 

 closely so on the last segment. Legs moderate ; tarsi long, posterior femora 

 rather rapidly narrowed toward the coxae ; first joint of the posterior tarsi 

 equal in length to the next two together, distinctly shorter than tlie fourth. 

 Prosternum deeply and irregularly pitted. Length 6.2 mm. 



