Coleopterological Notices, V. 595 



clothed with short coarse pubescence; tarsi distinctly 5-5 5-jointed, 

 the posterior only slightly more than one-half as long as the tibiae, 

 with the first joint a little longer than the second and equal to the 

 fifth ; claws small. 



This genus is allied closely to Homoeusa, but differs altogether 

 in the form of the prothorax, in the less inflexed hypomera, shorter 

 and stouter process of the ligula, triangular process of the meta- 

 sternum, this being transverse and not entering the intercoxal 

 space in Homoeusa, in its more posteriorly prominent met-epimera, 

 much shorter basal joint of the hind tarsi and longer fourth ventral 



IWI. crassicornis n. sp. — Rather narrowly fusiform, convex, moderately 

 shining, minutely reticulate, the abdomen more finely and densely so and 

 quite dull ; color rufo-testaceous throughout ; integuments rather coarsely 

 and strongly punctate, the pronotum very densely so, the abdomen laiucli 

 more sparsely ; pubescence short, decumbent and rather inconspicuous, the 

 abdomen with longer erect hairs toward apex. Head transversely orbicular, 

 convex, the front subimpunctate and polished, two-thirds as wide as the 

 prothorax ; antennae very distant at base, somewhat short, but slightly longer 

 than the head and prothorax, very strongly incrassate, finely pubescent and 

 with moderately long erect setae. Prothorax two-thirds wider than long, widest 

 at the middle where the sides are broadly and obtusely angulate, thence con- 

 vergent and straight to base and apex, the latter broadly arcuate and much 

 narrower than the base which is broadly arcuate, becoming straight near the 

 basal angles, the latter slightly obtuse, not rounded and not at all prominent ; 

 apical deflexed, obtusely rounded ; disk strongly convex, feebly, somewhat 

 obliquely impressed toward the sides and broadly, very feebly so along the 

 median line. Elytra equal in width to the base of the prothorax, about as 

 long as the latter ; sides straight and parallel ; humeri concealed ; disk per- 

 ceptibly and transversely convex. Abdomen as long as the anterior parts, at 

 base just visibly narrower than the elytra, at the apex of the fifth segment 

 one-half as wide as the latter ; sides straight ; border moderate ; surface 

 transversely convex, becoming subtubulate toward tip. Length 2 3 mm. ; 

 width 0.65 mm. 



Iowa (Iowa City). 



I have not seen any specimens of the ant with which this species 

 occurs. The pubescence of the under surface of the abdomen is 

 long and bristling. A single specimen, probably female. 



IHYRJWECOCHARA Kraatz. 



As remarked by Mr. Schwarz, it is beyond doubt that this genus 

 ^— which is also related to Homoeusa — is myrmecophilous and not 



