62 MEMOIRS ON THE COLEOPTERA. 



Echidnoglossa ventralis n. sp. Smaller, more convex, paler in color, 

 dark red-brown, the head and fourth and fifth tergites black, the legs 

 dark piceous-brown; surface shining, the head very finely, the pronotum 

 less finely but loosely, the elytra very coarsely and rather closely, the 

 abdomen finely but obviously punctate, the pubescence fine, very short, 

 not markedly pale and not dense; head as long as wide, semicircular 

 behind the eyes; antennae long, piceous, a little paler at apex and basally, 

 joints two to four decreasing uniformly and rather rapidly, the outer 

 joints as long as wide, the last fusiform, as long as the two preceding; 

 prothorax large, convex, slightly longer than wide, fully as wide as the 

 head, anteriorly narrowed very strongly from very near the middle; 

 elytra smaller than in any other known species, parallel, the sides gradu- 

 ally rounding inward posteriorly, nearly as long as wide, barely one-half 

 wider and a fifth longer than the prothorax, rather convex; abdomen very 

 rapidly and strongly dilated posteriorly, where it is evidently wider than 

 the elytra. Length 2.68 mm.; width 0.6 mm. California (Siskiyou Co.). 



Allied only to gracilis and the following, differing from gracilis 

 in the stouter, much more posteriorly inflated abdomen, relatively 

 larger prothorax and still coarser and more cribrate elytral punc- 

 tures, which are relatively coarser than in any other species that 

 I have seen. 



Echidnoglossa gaudens n. sp. Stouter than the preceding, strongly 

 shining, pale testaceous, the elytra a little darker, the abdomen blackish 

 near the apex; punctures of the head minute, not dense, of the pronotum 

 relatively coarser, closer and more uniform than usual, of the elytra 

 moderately coarse, well separated and nearly uniform, scarcely coarser 

 basally and becoming fine only near the apex, of the abdomen fine and 

 sparse; vestiture palish but very short, inconspicuous; head and antennae 

 nearly as in the preceding, the former a little broader and the latter 

 somewhat longer but not quite so strongly or rapidly incrassate distally; 

 prothorax moderately large, not quite as wide as the head and only just 

 visibly longer than wide, narrowing apically from a point more anterior 

 and with the lateral angles more rounded; elytra relatively larger, more 

 transverse and distinctly shorter than wide, parallel, the sides rounding 

 more abruptly and through a shorter distance apically, two-thirds wider 

 and one-third longer than the prothorax; abdomen claviform, strongly 

 dilated posteriorly, where it is fully as wide as the elytra. Length 2.72 

 mm.; width 0.68 mm. t California (Humboldt and Sonoma Cos.). 



Differs from gracilis in its stouter form, much larger elytra, 

 rounding externally and narrowing from a point much more poste- 

 rior and in its strongly inflated abdomen posteriorly, this in gracilis 

 being notably narrow, only feebly inflated behind and there dis- 

 tinctly narrower even than the unusually small elytra of that 

 species; the specimen from Sonoma is darker in coloration than the 

 type and is not quite so stout; it may represent a subspecific form. 



