. Coleoptera. Beetles. BEETLES. 325 tliis family. Thiei'sub-tMiuilies art easily iccugiiizalile; the highest, the Prioiiinse, Iiave the prothorax margined ami the labviun connate; the other two sub-families, the Cerambycirue and Lamiina', have the labriim free and the jirothorax without margin. The Lamiin* have, liowevei-, an oblique groove on the inner side of the front tibiae, while the front tibia' of the Cerambycina> are not grooved. Of tlie ', the genus Sapenlu is ]ierha]is Ix'St known. The species are nearly cylindrii'al; tlie prothorax is cylindrical with no spines .at sides.
. Coleoptera. Beetles. BEETLES. 325 tliis family. Thiei'sub-tMiuilies art easily iccugiiizalile; the highest, the Prioiiinse, Iiave the prothorax margined ami the labviun connate; the other two sub-families, the Cerambycirue and Lamiina', have the labriim free and the jirothorax without margin. The Lamiin* have, liowevei-, an oblique groove on the inner side of the front tibiae, while the front tibia' of the Cerambycina> are not grooved. Of tlie ', the genus Sapenlu is ]ierha]is Ix'St known. The species are nearly cylindrii'al; tlie prothorax is cylindrical with no spines .at sides. The elytra are a little wider than the jirdtliorax, distinctly sli(Uildered, and cover the entire abdomen ami the well-develojied wings. The legs are of moderate length, and are armed with claws wliicli point outward at right angles to the tarsus. The claws are simple, except sumetimes the outer one of the .-interior and middle tarsi of males of certain s) Fig. aGO. — Loiigicorii heeties. a, Saptrda carcliarinii; It, S. pojmiineaf- c, Acauthocinus ferfi/is, male; d, female; c, Linnia tuxtor. Saperda hivittnto is from (;"! to of an inch long, is wldte beneath, with white face and antemue, ami with t w<i u bite longitudinal strijies al)ove ; tlie rest is light brown. It is fiiunil, in June and .luly, about .apple, quince, mountain ash, (horn, shadduish, and other rosaceous trees, in the wood of which its larvie feed. The beetle is nocturnal, remaining concealed by day and feeding liy night, as is the case with .all s]iecies of Saperda. The imago eats tlie leaves of the same kinds of trees of which the larv;v eat the wood. The egg of S. hlrUtiita is laid in a cleft made by the female in the bark of the tree ; after depositing it the female fills the cleft with a cement like secre- tion. The young larvae bore into the trees, and where numerous tlie\ do much damage to apple-trees. The larva' are legless, nearly cylindrical, the first segment behind the he
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Keywords: ., boo, bookcollectionbiodiversity, booksubjectbeetles, bookyear1884
