264 QUARTERLY JOURNAL, 



minute hairs ; intermediate space glabrous ; sides with longer 

 hairs most conspicuous and thickly set forward of the wings ; 

 posterior edge depressed into a deep impressed transverse line 

 intervening between it and the seutel. Abdomen long-ovate, its 

 broadest part nearly equalling the thorax, posterior edge of each 

 segment marked by a lighter tinge ; beneath chesnut-brown, 

 thickly covered with short white hairs of a silky lustre ; abdomen 

 of females somewhat broader and shorter, terminated by a slight- 

 ly exserted two-jointed ovipositor of a cinnamon-yellow color. 

 Legs glabrous, long and slender, hinder ones extending twenty- 

 seven hundredths of an inch, of which the tarsi measure 0.13 ; 

 blackish above, beneath light lurid brown ; femurs slightly longer 

 and conspicuously broader than the tibise, cylindric, somewhat 

 contracted at their bases ; tibia cylindric-clavate ; tarsi black, 

 first joint very short, third longest and most slender, fourth and 

 fifth broadest. Wings smoky-brown, translucent, broadest across 

 the middle; nervures, except the anal, rectilinear; mediastinal 

 confluent with the costal at the middle of the exterior margin ; 

 postcostal strongest, running direct to the tips of the wings ; 

 medial scarcely confluent with the inner margin at three- fourths 

 the distance from base to tip, towards its base becoming a mere 

 plait-like trace upon the wing, and at a first glance seeming to be 

 a branch of the anal nervure ; a?ial most developed towards its 

 base, suddenly curved inwards and joining the inner margin near 

 its middle, giving to the anal area a rhomboidal contour. 



Larva. PI. II. fig. 3. This is a small worm of a bright orange 

 color, with the anterior extremity often red. It measures about 

 twenty hundredths of an inch in length, and 0.08 in diameter, 

 being of a cylindrical form, very slightly tapering towards, and 

 obtusely rounded at both ends, more so at the posterior than the 

 anterior extremity. A slightly projecting point is perceptible at 

 the apex of the anterior end, and two similar projections at the 

 opposite extremity. The larva is composed of but nine segments, 

 each well marked by a contraction inteiTening at the joints. The 

 anterior or head segment is the longest, and near the tip on its 

 under side are two small, black lines, slightly diverging from each 

 other as they proceed forwards; when closely examined under a 

 magnifier, a dorsal row of deep pink-colored spots are seen of a 

 square or trapezoidal form, one on each segment, reaching from its 



