Casey — Observations on the StopfiyUnidae. 13& 



width of the tip of the process before the latter, being about thret times 

 that of the coxal grooves 6 



6 — Form stouter than in sternalis, with the abdomen more strongly nar- 

 rowed from base to apex, the coloration throughout nearly similar, the 

 pronotum sometimes faintly paler toward the sides, the punctuation 

 similar, except Ihat the abdomen is fully as coarsely, i hough rather less 

 sparsely, punctate; head somewhat larger, nearly half as wide as the 

 prothorax, which is relatively larger ihan in sternalis but similar in form ; 

 antennae similarly short but rather stouter; elytra finely, closely, tub- 

 asperately and very distinctly punctured nearly as in sternalis through- 

 out. Male with the teeth of the sixth tergite about twelve in number, 

 short, stout and triangular, those at the sides not appreciably smaller 

 than the otners; flrj^t joint of the hind tarsi as long as the ntxt three 

 together and distinctly longer than in the preceding species. Length 

 3.8-6.0 mm.; with 1.2-1.9 mm. New York (Long Island), Indiana, Vir- 

 ginia (Norfolk) and Louisiana lustrica Say 



Form slender, small in size, shining, dark rufo- testaceous, the head slightly 

 darker, the elytra feebly shaded at the sides and tovvard tl:e scutellum, 

 the abdomen blackish, rufous at the apical margins of all the i-egments; 

 legs pale, the antennae blackish, pale toward base as usual; punctures 

 rather smaller, feebler and less close-set than in the two preceding 

 species; head about half as wide as the prothorax, the antennae about 

 as long as the head and prothorax combined, very stout, the joints about 

 the sixth twice as wide as long and somewhat wider than the apical; 

 prothorax short, fully three-fourths wider than long, rather less nar- 

 rowed anteriorly than in lustrica, the sides and base broadly rounded, 

 the basal angles somewhat evident though very obtuse and broadly 

 rounded ; elytra not quite twice as wide as long, the sides as long as the 

 prothorax, the suture nearly four- fifths as long; abdomen as in lustrica, 

 the punctures very coarse; hind tarsi about as long as the tibiae, the 

 basal joint not quite as long as the next three combined. Male with 

 the teeth relatively somewhat larger than in the two preceding species 

 and only about eight in number, the one at each side ueuslly being rudi- 

 mentary. Length 3.7 mm.; width 1.1 mm. Ohio (Cincinnati). 



algonqnioa n. sp. 



7 — Body less stout than usual, shining, flavo-testaceous, the head, median 

 parts of the pronotum rnd scutellar region of the elytra pale piceous; 

 abdomen blackish, the apices of the segment s pale; antennae du.>-ky, 

 paler toward base; punctures coarser but feeble and very sparse on the 

 head, f^maller and less sparse on the pronotum, strcnger, dense aid 

 asperate on the elytra, the abdominal punctuies coarse and very sparse; 

 head fully half as wide as (he prothorax, the eyes large, the antennae of 

 the usual type though less stout, as long as the head and prothorax, the 

 outer joints subequal in width, obtraptzoidal ard distinctly less than 

 twice as wide as long; prothorax three-fourths wider than long, only 

 moderately narrowed anteriorly, broadly rounded at the sides and 

 base, the batal angles broadly arcuate; two approximate anterior punc- 

 tures placed transversely unusually distinct ; elytra less thau twice as wide 

 as long, the sides about as long as the prothorax, the suture nearly four- 

 flfths as long; hind tarsi distinctly shorter than the tibiae, the basal 



