58 JOHN B. SMITH. 



widest at base, dense punctured with an indistinct and irregular longitudinal line. 

 Elytra more than one-half longer than wide ; humeri small ; striae deep, punc- 

 tures evident, intervals narrow, convex. Beneath evenly punctured. Length 

 2.26 mm. 



Hah. — Canada, Eastern, Middle, and Western States. 



This I am quite positive is the species described by Mr. Walsh, but 

 the name given by him being pre-occupied, I dedicate the species to its 

 original describer, who says he obtained the insect from galls on Salix 

 strobiloides, made by a Cecidomya. It seems to be common, and I have 

 obtained it from various localities, indicating that it is widely distributed. 

 The pubescence is distinct, and gives the insect a grayish appearance, 

 which, as well as the somewhat larger size, seems to separate it from the 

 following species. 



A. Ticinnm n. sp. — Black: of the same general form as the preceding, but 

 not pubescent. Head moderately punctured: eyes distinct, but not prominent; 

 antennae with basal joint short, and but little exceeding the second. Thorax with 

 sides more equal, punctures less dense. Elytra as before. Beneath finely punc- 

 tured. Length 2 mm. 



Hab.—Gol, Cal., N. Y., D. C. 



Closely allied to the preceding, but yet evidently distinct from it ; 

 the lack of pubescence and smaller size will serve to distinguish the 

 species. 



A. crassinasiiin Lee. Pae. R. R. Expl. and Surv. Ins. 53. — Of the same 



general form and appearance as A. proclive, Lee, but has the rostrum shorter, 



stouter, and more distinctly dilated ; the antennae are shorter and more compact; 



the color is brassy black, and the pubescence is not as distinct. Length 2 — 2.25 mm. 



Hah.—G&l,J). C, Tenn., Or. 



A. proclive Lee. Pae. R. R. Expl. and Surv. Ins. 53. — Black, pubescent. 

 Head elongate, scabrous, and rugose ; sulcate between the eyes ; the latter are not 

 prominent; rostrum elongate, very slightly dilated near base ; antennae elongate, 

 basal joint composing one-third of the whole member. Thorax densely punc- 

 tured, with a foveate puncture near base. Elytra one-half longei- than wide: 

 striae distinct, punctures evident, intervals moderate, flat and scabrous. Beneath 

 densely and irregularly punctured. Length 2 — 2.25 mm. 



Nab. — Cal., Col., Ga. 



Rather rare, single specimens only being found. 



A. modestiim n. sp. — Black, distinctly pubescent, form moderate. Head 

 transverse, rugose, and punctured; eyes prominent, rostrum slender and equal. 

 Thorax eylindric, widest near base, and very slightly narrower at base, apex one- 

 third narrower than base, sides arquate ; rather densely and distinctly punctured, 

 a foveate puncture near base. Elytral striae fine, punctures scarcely evident, in- 

 tervals wide, flat. Length 1 mm. 

 Hab. — Ariz., Kans., Fla. 



