AMERICAN COLEOPTKKA. 283 



out, median line finely feebly impressed throughout its length, small basal 

 smooth prominence obsolete, surface a trifle more roughly granulate; elytra 

 three-fourths longer than wide; last ventral without suhapical transverse ridge. 

 Female.. Not recognized. According to Casey " A little larger and paler than 

 the male, with more shining elytra, upon which there are indistinct traces on 

 each of three or four feeble ridges. Prothorax larger, fully as wide as the elytra, 

 rounded at the sides, widest just behind the middle, the surface more sparsely 

 and decidedly granose toward the tip. Elytra scarcely three-fifths longer than 

 wide, twice as long as the prothorax. Length 3.-3.5 mm. 



Indiana; Ontario (Ridgeway, Kilinan). 



Casey's types were from the former locality. The single male 

 from Ontario which I have here referred and which has served for 

 the above comparison with ruficornis may not he identical. It 

 agrees fairly well in most respects with Casey's description, in which 

 unfortunately the antennse are not compared with those of ruficor- 

 nis, nor is the presence or absence of the suhapical ventral carina 

 indicated. According to Casey's description " the feet are scarcely 

 paler, the antenna! rami infuscate, the elytra three-fifths longer 

 than wide." 



6. I*, raniicorilis Csy. — Male. Cylindrical, blackish, opaque, the elytra 

 occasionally somewhat paler; legs pale, antennae pale at base, the rami com- 

 pletely infuscate ; pubescence yellowish, moderately developed. Head densely 

 grauulato-scabrous and opaque, epistomal impression strong. Antenna! joints 

 4-10 very short, the rami excessively long and slender (fig. 30). Prothorax a 

 little wider than long, subequal in width to the elytra, sides parallel and straight 

 in basal three-fourths, the apex broadly evenly rounded, the reflexed border 

 crenulate each side the small median sinuation ; side margin very narrow, 

 equally wide throughout and not at all serrulate; surface coarsely densely gran- 

 ulato-scabrons. Elytra very nearly twice as long as wide, finely scabrous, the 

 punctures feeble and arranged in nearly even slightly impressed striae. 



Female. — Very similar to the male but more shining, the pronotal rugulosities 

 sparser and nearly wanting toward the base, elytral declivity more flattened, 

 with the intervals more uneven. Length 2.8-4 8 mm. 



California, Santa Cruz Mountains, Pacific Grove (Fenyes), Pasa- 

 dena, San Bernardino Mountains. 



This is in several respects the most remarkable species in our 

 fauna. The ramus of the third antennal joint is shorter than the 

 joint itself, while the following rami are all longer than the pro- 

 thorax, the longer ones being fully two-thirds the length of the 

 elytra; they are also more slender and with longer pubescence than 

 in any other species. The obtusely rounded anterior thoracic mar- 

 gin, and the elytral striae are also peculiar to this species. The suh- 

 apical ventral carina is lacking in both sexes. 



TKANS. AM. ENT. SOC. XXXI. JULY, 1905. 



