. The American entomologist. Entomology. 232 THE AMERICAN had bred this beetle from a larva found in decay- ing- pine wood, and which resembled in every respect, so far as our description went, the one sent by Mr. Lummis. "We have lately bred to the perfect state three of these Grape-root bor- ing larvie, and one which was found in an Apple-root, and they all four of them prove to belong- to a differ- ent though a very closely allied spe- cies to the one we suggested by in- ference. The bee- tle we have bred from these larvas is the Bi-oad-iieck- ed Prionus (Prio- nus latic
. The American entomologist. Entomology. 232 THE AMERICAN had bred this beetle from a larva found in decay- ing- pine wood, and which resembled in every respect, so far as our description went, the one sent by Mr. Lummis. "We have lately bred to the perfect state three of these Grape-root bor- ing larvie, and one which was found in an Apple-root, and they all four of them prove to belong- to a differ- ent though a very closely allied spe- cies to the one we suggested by in- ference. The bee- tle we have bred from these larvas is the Bi-oad-iieck- ed Prionus (Prio- nus laticoUis, Dru- ry), of which we herewith present a likeness(Fig. 171.) It is usually of a darker color than oior-Maiio-anj-brown, verging ^^e Cylindrical Or- ou black. ^, , thosoraa, and as may be seen upon comparing the figures, it differs materially from that species by its larger size and broader form. Our figure represents the female, which differs from the male in having shorter and narrower antennas, though her body is usu- ally larger. There is auother species, the Tile-horned Pri onus {Prionus imbricornis, Linn.,) so called from the joints of the male antenuse lapping ovei one auother like the tiles or shingles of a root— which very closely resembles the Broad-necked Prionus, and in Illinois is much commoner. It may be distinguished at once from this last b\ the autennie of the male being about 19-jointed and those of the female about Ki-jointed; whereas both sexes of the Itroatl-ncTked Prio luis luive 12-joiuted antenn;!-. In ciilicr lespects these two beetles are almost cxuc-lly alike, so that, if the autennie happeu to be broken, it i not very easy to tell one from another. So fai as we are aware, it is not known upon what kiud of tree the Tile-horned Prionus feeds; and from the very great similarity of these two bcetk-., then laivi ^vdl piohibh Kscmbh each othei vei> clo-ich The Pnonus Itnnh to \\\\\c\\ ill tlu^c in sects belong is distinguished from the more ex- t
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