— 125 — 



ca ; it is re-printed in the Swed. Vetensk. Acad. Handl. 1754, T. 16. 

 Ixodes americanus Linn, is very obnoxious, when it goes in the ears of 

 men. It is very difficult to remove, because it fastens itself strongly and 

 sometimes in places, where it not easy to be reached. There are cases 

 that the swelling of the ear has arrived to the size of a human fist. 



Notes on Stenus and Barinus. 

 By T. L. Casey. 



In some very interesting notes on Coleoptera recently published in 

 this journal by Air. F. Blanchard, several subjects are touched upon which 

 have been the subjects of more or less study on the part of the writer. 



Mr. Blanchard's observations in Stenus are perfectly correct but by 

 no means new. In the very thorough treatise on the Stenini of France 

 by Mr. C. Rev, several forms of toothed tibiae are illustrated, and in the 

 Biologia Centrali-Americana, Dr. Sharp has described other peculiar 

 modifications of those parts. These exceptions, however, do not invali- 

 date the rule that in the Stenini the tibia; are simple and unarmed. If my 

 memory serves me correctly, however, the language made use of in the 

 Revision of the Stenini has reference to the general absence of terminal 

 spurs. I would also add that I have considered Stenus- as a genus be- 

 longing to the group Stenini ; this is so evident that the statement made 

 by .Air. Blanchard seems quite inexplicable. 



With reference to Barinus, I have been much interested in the recent 

 studies of the author quoted, but am inclined to believe that the speci- 

 men of B. squamolineatus, referred to by him as having been received 

 from Mr. Webster, must be more or less rubbed and imperfect, as it is 

 impossible to reconcile Dr. LeConte's careful description of cribricollis 

 with the perfect representative of squamoiineatus which I have before me. 



In this description of cribricol/is the author writes as follows : "White 

 scales denser on the second interval for four-fifths the length; on the sixth 

 a basal line extending to one-fourth of the length," while in squamolinea- 

 lus the white scales of the second interval extend in a broad dense line 

 throughout the entire length of the elytra, becoming even broader and 

 denser at the apex, and the broad line of the sixth interval extends for 

 fully one-half the length. Without alluding to other differences such as 

 the apparent absence of a median line of scales on the pronotum of cri- 

 bricollis, and the probably denser punctuation of that species, I believe that 

 enough has been stated to show that these two species should not be uni- 

 ted without further study of more perfect specimens, especially in con- 

 sideration of the widely different habitats, Florida and Illinois. 



