280 MEMOIRS ON THE COLEOPTERA 



scutellum; color wholly black, perhaps sometimes paler anteriorly 

 after the fashion of the preceding species, more closely punctate; 

 antennae (9) very slender, blackish, three-fourths as long as the 

 body, the tenth joint nearly three times as long as wide; prothorax 

 notably larger than in the two preceding, wider than long, rounded 

 at the sides, more narrowed at base, the punctures strongly granular 

 and rather close-set throughout, not sparser along the middle but 

 less dense in a small spot at each side and a little before the middle, 

 also in a narrow impunctate line toward base; elytra scarcely a fifth 

 wider than the prothorax, nearly as in the preceding in regard to 

 form, sculpture and pubescence. Length (9) 9-O mm.; width 2.8 

 mm. Pennsylvania. [CalUdium varium Fabr., Spec. Ins., I, p. 

 241; versicolor Gmel., ed. Linn., I, 4, p. 1852 Lake Superior]. 



varius Fabr. 



A Similar to the preceding in general structure, sculpture and in the 

 short vestiture of this group, but rather narrower and less convex, 

 pale rufo-ferruginous, the elytra black from a little before the 

 anterior white band to the apex (cf ), or pale only at base and 

 thence more narrowly along the suture to the line of the anterior 

 band (9); abdomen and the greater part of the metasternum 

 black; legs very pale; antennae (cf ) not quite as long as the body, 

 or ( 9 ) a little more than two-thirds as long as the body, with the 

 tenth joint only a little more than twice as long as wide; prothorax 

 and elytra nearly similar in form and sculpture; legs (cf ) long, 

 with strongly inflated femora, the posterior much larger than the 

 two anterior, or ( 9 ) more equal and smaller. Length (cf, 9) 



6.7-8.0 mm. ; width 2.2-2.3 mm - Missouri diffidens n. subsp. 



Body relatively broader, more depressed and with much smaller anterior 

 parts than in varius, deep black and somewhat shining throughout, 

 the bicolored elytra not evident in a large series; head densely 

 sculptured; antennae (9) not more than two-thirds as long as the 

 body, with shorter joints than in varius, the second relatively longer, 

 being about half as long as the third, or (cf ) nearly as long as the 

 body, pallid with nubilously black distal parts of the joints, the 

 second still almost half as long as the third ; prothorax smaller than in 

 varius and not so transverse or so strongly rounded at the sides, 

 similarly closely, granularly punctate and with three longitudinal 

 callous and smooth areas, the medial more basal; elytra barely more 

 than twice as long as wide, parallel and straight at the sides, very 

 obtuse at apex, fully a fourth (cf ) to a third ( 9 ) wider than the pro- 

 thorax, the vestiture nearly as in varius, decumbent and close pos- 

 teriorly, longer, coarser, sparser and less inclined basally. Length 

 (cf , 9 ) 5. 7-8.0 mm.; width 1. 8-2. 7 mm. Massachusetts (Cohasset), 



Frost latipennis n. sp. 



I o "Dark brown; antennae, under side and anterior portion of elytra 

 lighter, the latter bearing two fasciae, the anterior acutely angulate, 

 the posterior broader, oblique and arcuate-, the entire insect clothed 

 with long fine hair, distantly placed, except on the elytral fasciae. 

 Head and thorax coarsely punctate, elytral punctures very strong. 

 Thorax rounded and somewhat protuberant at the sides, moderately 



