129 
in breeding-cages, the adults of a chalcid, — Bnderus lividus, as de- 
termined for us by Mr. Ashmead. A pupa obtained July 22 gave 
the adult July 28, and a larva found on the first date had recently 
pupated August i, and had changed to the adult by August 7. The 
species is recorded by Dr. Nason from northern Illinois, and by 
Mr. Ashmead from Florida. 
Description of Adult. — Length about 2-3 mm. Rather slender, 
abdomen slender, conically produced in female. Color dark metallic 
blue, dorsum of thorax greenish, antennae black, lo-jointed, white- 
hairy; tarsi white except last joint, which is dark brownish. 
Thorax finely reticulate, with a network of raised lines ; marginal 
vein long, submarginal and postmarginal rather short, stigmal 
short, the knob short-petiolate. 
Description of Pupa. — Length of male, about 2 mm., of female, 
2.5-3 mm.; width, .6-. 8 mm. Color light fuscous brown, dark- 
ening as adults mature. Abdomen of male with last three segments 
rapidly tapering to a blunt point, these segments often slightly 
darker than those preceding, and but slightly longer; abdomen of 
female with last three segments acuminately tapering, the sixth 
slightly longer than the fifth, seventh half as long again as the 
sixth, eighth narrow, twice as long as sixth. Ovipositor extended 
forwards on the median ventral line to base of sixth segment. Pos- 
terior legs nearly or cjuite attaining base of sixth segment. 
Cyniatodera baltcata Leconte. 
The predaceous larva of this beetle is about a fourth of an inch 
long, plump, elongate-oblong, with a projecting, strongly flattened 
head. The body is somewhat hairy, flattened and whitish beneath, 
dusky pink above changing to black in alcohol. The back is marked 
with a conspicuous confluent row on each side, next the margin, of 
large round whitish spots, each with a dark center connected with 
the dusky color of the back ; and along the side is a dusky line just 
above the ventral surface. The last segment is chitinous, and bears 
at its tip a pair of slightly divergent strong recurved hooks. 
These larvae are very active, and are capable of burrowing into 
the infested twig in search of their prey. A larva taken May 3 and 
kept without food pupated between May 29 and June 19, and was 
an adult in the burrow June 26. Another taken the 5th of May and 
supplied with food after the 9th, continued in the larval stage over 
the following winter. March 13 it burrowed into an infested elm 
twig, entering at the plugged end, and devoured the Oherea larva 
