980 i^\..Mii.v L. — S('.\i;ai:.i:iI).k. 



border; last sesineut with the front margin elevated and a ridge pro- 

 longed haclvward at middle. Ixjngth 11.5-14.5 nun. (Fig. 375 and PI. I, 



lig. :!S1.) 



'IMii'ou^lKnit the State; coiuinnn. April S-Juiio f). Eoadily 

 known liy tli(> siiuill size, |);il(' coloi- and erect hairs of tlmrax, taken 

 in eonneetion with the other eliaraeters mentioned in l<ey. 



L. incpta Horn, ohlonti', snlK-ylindrical, reddish-yellow, length 15 

 mm., was deseril)ed from Ohio. L. quercus Knoeh, ohlong, cylin- 

 (h'ical, reddish-yellow, head dai-ker, elytra paler, length 14.5-16 

 nnn., occnrs from the ]\Iiddh' States southward to Georgia. 



Subfamily III. PLEUROSTICTI. 



The niemhers of this subfamily are mainly distinguished by the 

 position of the abdominal spiracles, the second pair being located in 

 the membrane connecting the dorsal and ventral segments, the third 

 on the outer limit of the membrane and the others in the upper or 

 dorsal portion of the ventral segments. The last two pairs diverge 

 strongly and are usually visible on the sides of the abdomen below 

 the elytra, which do not cover the last dorsal segment or pygidium. 

 They are more closely and heavily built insects than the Melolonthi- 

 na?, and like them are, for the most part, vegetable feeders or "leaf 

 chafers." The general color is lighter and often variegated; the 

 antenna? 9- or lOrjointed, with the club three-jointed and rarely 

 elongated in the males, and the ligula is ahvays horn-like and firmly 

 united Avith tlu^ mentum. For convenience the subfamily is sub- 

 divided into three tril^es. all of Avhich are represented in Indiana. 



KEY TO TUIBES OF PLEUROSTICTI. 



(/. Claws of the tarsi unequal in size, the inner one usually much more 

 slender than the outer. Tribe I. Rutelini, p. OSO. 



aa. Claws of the tarsi equal in size. 



h. Front coxte transverse, not prominent; body above convex (except 



in PJiilcnriis). Tril)e II. Dynastini. p. 988. 



bJ). Front coxte eonieal, prominent: b;.dy above somewhat fattened or 



nearly level. Tribe III. Cetoniim. p. 005. 



Tribe I. RUTELINI. 



Oblong, convex, usually r()l)ust s|)ecies, having the labrum short, 

 horizontal and sinuate; mentum quadrate; scutellum usually 

 rounded behind; tarsi short, with cylindrical joints; side pieces of 

 metathorax narrow with the ei)imera visil)le. They live for the 

 most part on the leaves of trees and vines and some of them are very 

 injurious, especially to the foliage of the grape. 



