[77] 



NORTH AMERICAN COLEOPTERA. 233 



there are two small, widely distant, deeply impressed occipital foveas; antenna! 

 tuberculations slightly convergent posteriory; epistoma distinct, declivous, 

 wider than long, very feebly arcuate at apex; labrum short, broad, rather 

 strongly and evenly emarginate throughout its width; antennas slightly 

 longer than the head and prothorax together, rather strongly incrassate; sec- 

 ond joint much shorter than the third, longer than the fourth, tenth very 

 slightly wider than long. Prolhorav widest at one-third its length from the 

 apex, where it is slightly wider than long and as wide as the head across the 

 eyes; sides thence very strongly convergent to the apex which is squarely 

 truncate and about one-half as wide as the disk, and ratber feebly though dis- 

 tinctly convergent, evenly aud distinctly arcuate to the base; the latter 

 broadly and extremely feebly arcuate, two-thirds as wide as the disk; angles 

 very obtuse and rather broadly rounded; sides at the apical third rather 

 broadly rounded; disk strongly convex, with a few very widely scattered se- 

 tigerous punctures. Elytra at base slightly wider than the prothorax; sides 

 rather strongly divergent, distinctly arcuate toward the apices; together trans- 

 versely truncate behind; disk rather depressed, abruptly strongly declivous 

 at the sides, slightly wider than long, nearly one-fourth longer than the pro- 

 notum; suture narrowly and strongly margined with an elevated line; surface 

 having a few very small, widely scattered, setigerous punctures having a ten- 

 dency to lineal arrangement. Abdomen at base very slightly narrower than 

 the elytra; sides parallel aud nearly straight; border very thin, erect and deep, 

 nearly equal on the five basal segments; surface very finely and sparsely pu- 

 bescent and punctate toward the sides, almost impunctate in the middle. 

 Legs moderate in length; femora robust; third joint of the posterior tarsi less 

 than twice as long as the first and second together. Length 2.8-3.3 mm. 



Texas; (Galveston 5). 



The description is taken from the male, the sexual char- 

 acters of which are of the usual form in this section of the 

 genus; the double, posteriorly excavated emargination of 

 the sixth segment is scarcely more than one-third the width 

 of the segmeut, and the arched laininae of the seventh nearly 

 meet over the broadly rounded excavation; eighth segment 

 broadly impressed. It is a very distinct species and belongs 

 immediately after crassicornis in the list of the genus as 

 published by me (Cont. II, p. 153). The order of the species 

 has been changed in the recently published check-list of 

 Mr. S. Henshaw, so that the least characteristic forms of 

 the genus there head the list, while the species upon Avhich 

 Erichsoa founded the genus appear last. My only commen- 

 tary is a passing allusion; I cannot refrain, however, from 



