WILLOW LEAF-BEETLES. 591 
them numerous spots and dots of dark green with a black line on the suture widened 
anteriorly and a second line parallel with this on each side, the antennie and legs 
rusty red. (Fitch.) 
78. Crepidodera helxines (Linn). 
The adult Crepidodera helxines L. was found repeatedly throughout 
May in central and southeastern Illinois, devouring the leaves of wil- 
lows, and scarcely less commonly upon the Lombardy poplar and the 
balm of Gilead, doing decided injury to young trees in the nurseries. 
(Forbes's Rep. Ins. 111., 1883.) 
This is also said by Mr. W. L. Devereaux to be very abundaut on the 
leaves at Clyde, N. Y. 
79. Phyllodecta vitellines (Linn). 
The beetle.— Second and third joints of the antennae of usual length. Body oblong, 
a little inclining to ovate, glossy ; underneath black-bronzed, scarcely punctured ; 
above bronzed with a copper tint, minutely punctured. First and second joints of 
the antennae rufous; scutellum impunctured ; elytra punctured in rows, with the inter- 
stices indistinctly punctured ; tarsi piceous with the first joint rufous. 
80. Galerucella sagittarice Gyll. 
The beetle. — Body brown, a little downy, not glossy. Mouth dirty yellow ; pro- 
thorax transverse, impressed, reddish-yellow, with three black nearly confluent spots ; 
scutellum subquadrangular, truncated at the apex ; elytra grossly but not thickly 
punctured ; suture and lateral margin paler than the rest of the elytron ; anus and 
legs reddish yellow ; tarsi darker. Variety B : With the base of the antennae yellow- 
ish underneath, the black spots on the prothorax distinct, and the elytra entirely of 
a brownish yellow. 
81. Lina ( Plagiodera) lapponica (Linn.). 
Larvae of Plagiodera lapponica L., taken on the willow at Normal, 
June 24, commenced to pupate July 1, and to emerge on the 3d, the 
last of about sixty appearing on the 8th. (Forbes's Eep. Ins. 111.. 1883.) 
82. Lina (Plagiodera) scripta Fabr. 
Mr. D. W. Coquillett writes me that he has observed this beetle on 
the willow in Illinois. 
83. The snowy tree-cricket. 
(Ecanthus niveus Serville. 
This common tree-cricket has been quite frequent, congregating in 
raspberry and blackberry patches, as well as on white willow hedges, 
where it often causes much injury by filling the stems and twigs of these 
plants with its eggs. Several species of Helianthus and one Solidago 
are, however, its chief food-plants in Nebraska. Scarcely a single one of 
these weeds escapes without the eggs of one or more of the crickets 
being thrust into its pithy substance. (L. Bruner in Riley's Rep. Inj. 
Ins., U. S. Ag. Dpt,, 1884, p. 399.) 
