Coleopterological Notices, VII. 593 



genus ; the bod}"^ is said to be 1.5 mm. in length, ferruginous, with 

 long abdominal lines proceeding from a small rounded fovea, and 

 the species is from Illinois. Trigona is larger, 1.8 mm. in 

 length, ferruginous, with approximate and diverging abdominal 

 lines proceeding from a triangular tubercle, the last ventral of the 

 male having a deep and sharply defined but not large oval fovea ; 

 it is from Missouri. Both of these species may be placed, for 

 convenience, near divergens, but it is impossible to state anything 

 definite about them in the absence of the types. Bicolor seems 

 to be a remarkabl}' aberrant species in its short and stout antennae, 

 with the eighth joint three times as wide as long and the next 

 two transverse, in its small and non-prominent eyes, very con- 

 spicuous median fovea of the pronotum, and in the peculiar color- 

 ation and habits ; its position among the other members of the 

 genus is altogether uncertain, and it may be placed at the end of 

 the series as generically doubtful. 



The identity of canadensis with gemmifer is a surmise, and 

 may prove to be incorrect. Dr. Brendel was in error, however, 

 in attributing short abdominal carinse to gemmifer, and the spe- 

 cies identified by him under that name is probably that which is 

 named subsimilis in the table ; gemmifer has long abdominal 

 lines, a transverse, deeply punctate prothorax, strongly rounded 

 at the sides, and seems to agree in all characters of the descrip- 

 tion with canadensis. My previous reference of canadensis to 

 divergens was an inadvertence, as the prothorax in the latter is 

 virtually impunctate and smooth, and my allusion to the prothorax 

 as sparsely punctate (Col. Not. V, p. 482) was an error due to 

 confusing that species with subsimilis. Litoralis Bndl., which I 

 previously regarded as identical with inopia, is apparently differ- 

 ent, the abdominal carinse as described being much longer. The 

 small, uniformly pale, ferruginous species, of which this is one, 

 are somewhat abundant ; the four already known are demissa, dis- 

 tans, litoralis and inojna. 



Of congener I have one example which is labeled "^ Illinois," 

 but this is possibly an error. The characters of semirugosa are 

 taken from the^ male type kindly communicated by Mr. Schmitt. 

 Peregrinator is the species referred to by me formerly (1. c.) as 

 cribricollis ; I have since obtained the true cribricollis, which 

 is quite a different thing and more western in habitat. Minuta 

 Bndl., is synonymous with Nisaxis tomentosa, as I learned some 



