OF THE STATE ENTOMOLOGIST. 121 



These feed on through the fall, and, hibernating, recommence, in 

 spring, the annual history just told. 



This insect is so abundant that the sumachs are, in some years, 

 completely denuded over vast extents of country. In July of last 

 year, though the animal itself was not to be seen, I found abundant 

 evidence of its work through Kansas, Texas, Indian Territory and 

 Colorado, It feeds alike on all the sumachs I have mentioned ; but is 

 not so frequently found on the Fragrant Sumach {R. aromatica^ 

 known in diflerent parts of the State as "French Hazel," "Stinkweed," 

 "Polecat-weed," etc.,) and not at all on the Poison Ivy, {R. toxico- 

 dendron'). 



REMEDIES. 



The Smoke-tree may be protected from the injuries of this 

 insect by jarring the beetles, in early spring, into pans of water, 

 or by strewing the ground lightly with straw, then starting a ring of 

 fire on the outside, and jarring the beetles into it. If the worms 

 have been allowed to hatch, the Paris-green mixture will soon dispose 

 of them. 



Blepharida rhois.— £(7^?— Pale yellow, ellipsoidal, 0.05 inch long, \ as wide ; 

 translucent. 



iarya.— Average length 0.50 inch when full grown. Body 12-jointed, with but a 

 very slight subjoint; smallest and narrowest on joint 1, enlarging thence gradually to 

 12th, which is rounded and somewhat bulbous. Dorsum with about three faint trans- 

 verse wrinkles to each joint. Color translucent gamboge yellow, with six longitudinal 

 lines of a paler, brighter, opaque yellow; two of these dorsal, straight, and mostly 

 obsolete on thoracic joints ; and two each side, sinuous and slightly raised, the lower in 

 a line with stigmata, the upper parallel to it. The spiracles in normal position, con- 

 sisting of small, dark-brown, raised, circular annuli, the first pair rather largest, and on 

 a subventral fold between joints 1 and 2 ; the others in middle of joints 4-11. A lateral 

 brown, polished, crescent mark just above legs on joints 2 and 3, and numerous minute 

 brown papillaj most conspicuous on thoracic joints. Head small, polished, black ; the 

 sutures' paler; a few short paler bristles around trophi, which are inconspicuous; 

 Epistoma broad, with a Y-sh.aped depression in the center; labrum (Fig. 33, 1<) white 

 and excavated in front; antennae (^) naked, 2-jointed, the basal joint very stout and 

 truncate, the terminal joint a mere nipple ; mandibles (i) 4-toothed, the outer one small ; 

 maxilL-e with a few bristles on inner lobe, and the palpi (li) naked and 4-jointed ; 

 labium {]) transversely reniforra, the palpi naked and 2-jointed. Cervical shield rather 

 darker than body and mottled with brown. Legs [I) increasing in size from first to 

 third pairs, mostly armed with a few pale stiff hair?, the coxas stout, and the tarsi 

 consisting of a pale, fleshy, tractile tubercle, surmounted by a curved hook. An anal 

 retractile pseudopod, which, when fully exserted, is divided into eight or more lobes, 

 and much expanded. Anal slit transverse. The young larva differs only in having 

 the cervical shield black. Many specimens examined. 



Papa—Oi\X\% normal Chrysomelid form,yellowi.sh, with the eyes and tips of jaws 

 dark, and two small anal projections. 



9 — E R 



