THE CANADIAN ENTOMOLOGIST. 93 



in fiimipennis the elytra particularly have the punctuation much more 

 distinct ; but the sexual characters will enable the two species to be more 

 readily separated. In T. axillaris the males have the fourth abdominal 

 ventral segment triangularly impressed ; the fifth is broadly impressed, 

 with the apex deeply emarginate. In my specimen there is also a slight 

 impression on the tip of the third segment, which is not mentioned in the 

 description of Erichson. The sixth segment is terminated by two long, 

 somewhat curved spines. The males of T. fumipennis have the third and 

 fourth segments not impressed ; the fifth is broadly impressed, with the 

 apex only slightly emarginate and the terminal spines of the last segment 

 are less prominent. 



The female of fumipennis differs from that of axillaris as described by 

 Erichson (I have seen no females of the latter species) by having the two 

 external lacinicC of the last segment of the abdomen longer and more 

 slender than the intermediate ones. 



Tachiims colonics Sachse, from the Southern States, differs by the 

 description from either of the above species, and will probably prove to 

 be distinct. Besides the above, there is at least one, probably two, species 

 as yet undescribed, agreeing in general appearance with these, and which 

 would be confounded with them on a superficial examination. 



As the description of Say will apply to all of these species, it is some- 

 what doubtful which is the one really intended by him ; in fact, it is quite 

 possible that he has confounded two or more species under the name oi 

 fumipenfus, but the species which I have characterized under that name 

 is apparently the most abundant in Pennsylvania, whence Say's specimens 

 came. The description of Say reads " body minutely punctured," a 

 phrase which is not used in the description of several allied species pub- 

 lished at the same time, from which it is probable that the species intended 

 by him was more coarsely punctured than the others, which also points 

 to this species rather than either of the others mentioned above. 



Languria inornata Rand., gracilis Newm. This species has been 

 unfortunate in names ; originally described by Latreille as Z. " bicolor 

 Fabr.," the name was changed by LeConte to Latreillii, and by Crotch 

 to gracilis Newm., and inornata Rand, placed as a variety; but it appears 

 that the description of Randall has priority over that of Newman, and 

 the species should therefore bear the name inornata Rand. 



Hispa collar is Say, Jour. Ac. Phil, iii., 433, is without doubt the 



