CA JOHN B. SMITH. 



dilated near middle, a distinct deep puncture at upper side near point of dilation, 

 and a more or less distinct sulcus from its head. Antennae moderate, basal joint 

 twice as long as second, and with it forming two-fifths of entire member. Thorax 

 depressed, above rugose and densely punctured; elytra very broad, but little lon- 

 ger than wide; humeri distinct and large, striae distinct, punctures evident, inter- 

 vals wide, flat, with a row of punctures through middle. Beneath, sternum rather 

 finely and sparsely, abdomen more densely and grossly punctured. Lengtli 

 3 — 3.5 mm. 



ffab. — U S., except Pacific States. 



This is a common and well-known species ; easily known liy its large 

 size and depressed form. 



Said by Harris to be found in seeds of Baptma tinctorlK. 



A. nigrtim Hbst. Kaefervii, 122, pi. 103, f. 11 ; Germ. Mag. ii, 239; Gyll. Sch- 

 Curc. vi, 254. — Black, usually distinctly pubescent. Head much as in the pre- 

 ceding except for the sculpture of rostrum. Antennae basal joint but little ex- 

 ceeding second, and combined with it not equalling one-third of the entire member. 

 Thorax as in rostrum; elytra of the same general form, humeri smaller, proiior- 

 tionately rather longer; striae and intervals as in the preceding. 

 Length 2 — 2.5 mm. 



Hal). — U. S., except Pacific States. 



This species varies considerably in size, density of pubescence, form of 

 rostrum, which is sometimes dilated and sometimes not ; form of elytra, 

 which are sometimes more ovate, and size of head, which is occasionally 

 less transverse ; in general appearance very similar to the preceding ; it 

 is at once distinguished by its smaller size, more evident pubescence and 

 more elongate form. This is probably the species mentioned by Harris 

 (//i.s\ III}, to Veg. Flint's Ed., p. 67) as feeding in the seeds of Locust, 

 and specimens in Dr. Horn's collection are marked "On Locust, Adiron- 

 dacks." 



A. patriiele n. sp. — Black, not pubescent, form broadly ovate. Head trans- 

 verse, scabrous and punctured ; eyes somewhat prominent. Thorax densely and 

 grossly punctured with a linear dorsal depression, becoming punctiform or foveate 

 at base. Elytra ovate, striae and intervals as in the synopsis. Length 1.5 mm. 

 Nab.—lJ. S. 



Easily distinguished by the characters mentioned in the synopsis, por- 

 catmn, with which it agrees in most structural details, being much more 

 obese, and somewhat larger. 



A. porcatum Boh. Sch. Cure, v, 374.— Black, not, pul)escent, form very ro- 

 bust, sub-depressed. Head broad, rather sparsely punctured ; eyes but little promi- 

 nent; antennae moderate, basal joint longest, second stoutest, together forming 

 one-third in length of the antennae. Thorax rather sparsely punctured with a 

 deep foveate line near base. Elytra comparatively very large, but little longer 

 than wide, humeri large, distinct; striae deep, punctures evident, intervals nar- 

 row, convex, not wider than striae. Length 2 mm. 

 Ilah.—^eh., Pa., N. Y. 



