326 NEW VOKK STATE MUSEUM 



Tlic full sjjrown larva is a trille over j_^, inch long^. witii the head, 

 thoracic shield, true Ivij^s and anal shield, coal black, and the remainder of 

 the body a yellowish white. The seijmentation is very distinctly marked 

 and the abdominal seijments bear conspicuous lateral tubercles, those on 

 the second to the seventh an- lipped with black ant! bear a black chitinous 

 point. The brown spiracles are circular. 



The e^L;' of this species has been descrilu-d by .Mr Chittenden as short, 

 oval in outline and llaltciied on two sides. He states that its color wlien 

 fresliK' laiil is milk\- white and that tile shell is e.xtremly thin, pliable, and 

 with a \ery fine netlike sculpture, visible only with a strong magnifying 

 glass. 



Life history. The life history of this beetle in West \'irginia, has 

 been given 1)\ l)r 1 lopkins, as follows: 



The adidts probably appear in May or June and deposit eggs on 

 the under surface of the leaves. The small grubs hatching therefrom 

 burrow in and feed upon the delicate parenchyma, forming blisters near the 

 edges which usually extend to the midrib. They transform within the 

 blister to the pupa and tin- beetles soon emerge and feed uijon the remain- 

 ing unaffected leaves. 



Mr Chittenden states that the brt'tle maki's its first appearance in the 

 vicinity of Washington soon aft(-r the leaves of the locust tree have fully 

 developed, usually about the beginning of Ma\-, anil from then it ma)- be 

 found continuously throughout tht- summer till the fu'st half of September, 

 it being quite abundant from the tirst week of July till nearly the middle of 

 August. He Slates that the beetles of the I'lrst spring generation began to 

 develop July 7 in 1902 and had transformecl for the most jiarl l)y the 12th. 

 He adds that the beetles are usuall)- seen apparent!)- motionless on the 

 surface ot the lea\es but close inspection will show that thev are feeding. 

 Early in the season the adults eat small oblong holes in the leaves, but 

 later the lower half is left intact and the upjier portion finel)- skeletonized. 

 The injury done by the beetles, even when the\- are very numerou.s, is 

 trifling when compared with the work of the larxac. Mr Chittenden states 

 that iluring rainv weather, at night time and while ovipositin*'- the beetles 



