That the Aphids in the sprine time are wingless, virgin females, is an opinion that has been carefully entertained by some of the most distinguished naturalists and physiologists in the world. Bonnet, Reaumur, Owen, Huxley, &c., have especially studied this interesting class of insects, and have given expression to the above opinion in their writings. But this, therw are strong reasons for asserting, must be taken in a restricted sense, so far, at any rate, as our own Aphidae are concerned.

Larvae, long, 1.07 to 1.10 inch. Head rather large, smooth, vertical; occiput dark chestnut brown; medial line abbreviated, but well defined; lateral lines complete; vertex piceous, sculptured; front rufo-piceous ; mandibles obtuse, opaque, with three large deep impressed punctures; labium 3-dentate; mentum sinuated, sub-flavous. Body sub-cylindrical, not curved, sub-flavous, middle segments largest, humeral and anal segments corneous, brownish; legs replaced by six tubercles.

Anterior and posterior wings linear lanceolate, and apparently destitute of nervures. (In a single specimen of the hind wing, mounted as a microscopic specimcn in Canada balsam, a short costal nervure, a subcostal and an independent nervure close along the posterior margin, but not beginning at the base, are visible, but ordinarily I can fincl no trarce of any nervure except Perhaps the costal is visible; to all ordinary observation the wings are without nervures. Thc posterior are excised from the basal fourth of the costal margin to the apex.

It is distinctiy within my knowledge that many persons who are not overburdened with too large a share of wordly wealth, are strongly inclined to make the study of Entomology and the collecting of insect specimens an employment for their leisure hours, were it not for fear of the expense they believe it necessary to incur for cabinet, cork, pins, &c. Now, the cabinet and cork may be dispensed with-in fact, I have neither the one nor the other myself.