i 
THE WHITE-NECKED PINE-BEETLE. 801 
130. The Philadelphia chrysomela. 
Chry8omela philadelphica Linnaeus. 
Order Coleoptera; family Chrysomelid^e. 
Feeding upon the leaves from May till September, a very convex broad-oval beetle 
about 0.30 long, of a dark bottle-green color with white wing-covers sometimes tinged 
with yellow and having on 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 antennae and legs rusty red. This is also common upon willows, with other species 
closely similar to it. (Fitch.) 
131. The pixe chrysomela. 
Glyptoscelis hirtus Olivier. 
Order Coleoptera ; family Chrysomelid.e. 
Feeding on the leaves in May and June, a thick cylindrical beetle resembling the 
Cloaked Chrysomela, No. 27, but with the pubescence much thinner thau in that and 
the other American species of this genus. Its color is brassy, more brilliant on the 
under side and tinged with coppery. The male is usually 0.28 and the female 0.35 
long. (Fitch.) 
132. The Saratoga leaf-hopper. 
Aphrophora saratogensis Fh. var. 
Order Hemiptera ; family Cercopid.e. 
The larvae form masses of froth on the leaves of the white pine in June, acquiring 
wings the last of July and in August in Maine. Common. (Named by Dr. Uhler.) 
133. The white-necked pixe-beetle. 
Dichelonycha albicollis Burmeister. 
Order Coleoptera ; family Scarabjeid^e. 
A small beetle half an inch long or somewhat less and resembling the Rose bug, No 
50, in its shape but with wing-covers of a shining brilliant green, becomes quite com 
mon upon pines about the middle of May, eating the leaves, and continues about a 
month. It may be distinguished from the several other species of the genus to which 
it belongs by its thorax having a more distinct but a very shallow groove along its 
middle. (Fitch.) 
The beetle. — This species has a black head with its fore part dull pale yellow. Its 
thorax is black and is covered with incumbent ash gray or yellowish hairs, but not 
so close as to hide the ground beneath, whilst the scutel is densely coated with white 
hairs. The bright green wing-covers are dull pale yellow along their outer margin 
and also on their inner edge. They are rough from confluent punctures and" show 
three smooth raised lines on each, running lengthwise. The legs are pale yellow with 
the hind feet and inner side of the hind shanks black or blackish, and the fore shanks 
have at their outer tips two projecting teeth with a small tubercle indicating the place 
of a third tooth. Its length varies from 0.40 to 0.50. (Fitch.) 
5 ENT 51 
