486 JOURNAL OF ECONOMIC ENTOMOLOGY [Vol. 3 



that this species is identical with that described in 1880 by Doctor 

 Thomas as Macrosiphum (Siphonophora) viticola. Shimer's descrip- 

 tion agrees in every respect with the well known viticola, excepting 

 the statement about the "tubercles" (-cornicles?) and in this Shinier 

 has contradicted himself, for while in the description he says "tuber- 

 cles about one half the length of the tarsi," later in a discussion he 

 speaks of the "horny tubes," in dried specimens, being about twice 

 the length of the tarsi. Inasmuch as the original description of this 

 species is inaccessible to nearly every worker, I consider it of impor- 

 tance to quote verbatim the description as given in the Prairie Farmer. 



"A New Grape Aphis 

 "By Henry Shimer, M. D. 



^^ Larva brown, anteriorly darkest. Green at first. 



'^ Pupa brown. Rudimental wing and collar slightly tinged with green. 



"Imago black. Thorax deep black. Abdomen brownish, transversely rugous, 

 beneath, i. e., segments beneath conspicuous; tubercles about one half the length 

 of the tarsi, cylindrical, around the base of which, somewhat distant, the latler 

 margins of the posterior abdomen are conspicuously elevated. Legs black. An- 

 terior femur above lower part of the anterior and middle tibia, premuscus and base 

 of wing nervures grey. Antennae black. Setiform attaining the basal fifth of the 

 stigma of the expanding wings. The first joint prominent, thick, sub-cylindrical, 

 bevel margined on the upper end. Second shortest, not half the diameter of the 

 first, but decidedly thicker than the following which gradually tapers to the pointed 

 end. Third joint very long, longest, obclavate, the next three gradually shorten- 

 ing successively, the terminal abruptly smaller, setiform almost as long as the third . 

 Eyes black, globular, prominent. Tibia; hairy, somewhat curved. First tarsal 

 joint thick, not easily distinguishable from the tibia; second curved downward 

 long and much tapering from the unguis toward the articulation. Wings hyaline, 

 producing prismatic colors in the sunshine. Anterior wing long, the base acute 

 angled from the middle. Exterior end rounded, in life erect, folded together, per- 

 pendicularly over the back, the posterior margin above. Nervures black. The 

 terminal third of the narrow costal and sub-costal space filled with an opaque buff 

 brown narrow elongate, falcate spot. Punctum marginal, about six times as long 

 as wide, black on the posterior border, acute, obliquely pointed at each end taper- 

 ing internally into the cubitus, and externally into the costal border, from the base 

 of the terminal fifth. From the obtuse angle thus formed at the base of the ter- 

 minal fifth springs the much curved intercalor stigmatic vein, being curved in the 

 first part of its course — a true parabola with the principal vertex in the carpus, the 

 third discoidal, the three branching vein arises from the internal point of the opaque 

 space, second and first simple, the latter terminating in a tumeaction of the pos- 

 terior marginal, a narrow elongate conspicuous vittla mostly internally from its 

 extreme origin; a few long, very much attenuated, tapering acute capillary hairs 

 arise from the third discoidal, below the first branch. 



"Posterior wing small more pointed, obliquely incised on the anterior margin 

 at the outer end, the sub-marginal vein also deflected parallel and very close to the 

 incised border, decidedly closer than at the middle of the wing and terminating at 

 the apex. Length to tip of wings, .14 inch, of body, .05, anterior wings, .10, an- 

 tennae, .05." 



Following this description Doctor Shimer gives notes on the habits, 

 which agree with those of M. viticola, and the predaceous and para- 

 sitic insects of his species. He also discusses at some length on the 

 differences between this and the European A. vitis Scop. At the end 

 he adds a note, as follows. 



"Note — Since writing the above I have seen this insect on wild grape and Mr. 

 Walsh has informed me that he has examined carefully, some dried specimens 



