308 Trans. Acad. Sci. of St. Louis. 



joint distinctly longer than the next two combined. The 

 type may be described as follows : — 



Body moderately stoat and convex, dull in lustre, the elytra more shining 

 and the abdomen still more so, densely and rather coarsely micro- 

 reticulate, the reticulation very strong, obscuring the punctuation, 

 rngulose on the head, larger and feebler on the elytra and very feeble 

 on the abdomen; color black or blackish when mature, the elytra 

 slightly paler, rufescent, the tip of the abdomen pale; legs pale testa- 

 ceous, the antennae black, paler toward base; pubescence moderately 

 long and coarse, subdecumbent; head slightly elongate, parallel and 

 nearly straight at the sides, the eyes before the middle and prominent, 

 the basal angles broadly rounded; surface with a shining and less 

 sculptured median line expanding in front; antennae scarcely as long 

 as the head and prothorax, very thick, the outer joints very transverse 

 and compactly joined, the second joint elongate and slightly longer 

 than the third, fourth transverse, four to eleven gradually wider, the 

 latter as long as the two preceding and very obtusely rounded at tip ; 

 prothorax very nearly as long as wide, almost a third wider than the. 

 head, the sides parallel and nearly straight, rounding and converging 

 anteriorly to the apex, the basal angles obtuse; base strongly arcuate, 

 the surface not impressed; elytra a third wider than the prothorax 

 and equal to the latter in length, the sides feebly arcuate, slightly 

 diverging from the humeri, which are but very slightly exposed at base; 

 external apical angles and scutellar region black; abdomen slightly 

 narrower than the elytra, parallel, finely, not very densely punctnte, 

 closely and more coarsely so in the basal impressions. Length o.O 

 mm.; width 0.8 ram. Massachusetts to Iowa (Inryi n. sp. 



This species does not appear to be rare and generally 

 occurs with ants of lars^e size and black color. I have 

 received it from Messrs. Chas. Dury, of Cincinnati, and 

 H. F. Wickham, and from the late P. Jerome Schmitt, of 

 Westmoreland Co., Penn. 



Gennadota n. gen. 



The species described by the writer under the name Oalli- 

 ceinis puberuhis (Ann. N. Y. Acad. Sci., VII, p. 310), has 

 the anterior tarsi five-jointed and therefore constitutes a 

 genus allied to Ocalea and more especially to Chilopora, 

 having a structure of the intermesocoxal parts nearly similar 

 to the latter, but differing in having- the first four termites 

 impressed at base, as well as in its coarser, sparser sculpture, 

 coarse pubescence, shorter, thicker tarsi and general facies. 



