152 Journal New York Entomological Society. ^^'°^- xxviii. 



sides. Thorax twice as wide as long, sides subparallel at middle, narrowing 

 rapidly one-fourth from apex and base, median sulcus deep at middle, densely 

 and deeply pvmctured, obliterated by elevated smoother spaces at either end, 

 broad, irregular, broken, elevated, smooth places each side of median depres- 

 sion. Elevated spaces irregular, black and smooth, punctured areas brassy 

 green, more brilliant green along lateral margins. Base of elytra distinctly 

 wider than thorax, sides parallel for slightly more than one-half their length, 

 then narrowing sharply and serrate. Apices rounded ; first costa nearly entire, 

 prominent and smooth ; others obliterated j^ jDasal foveae deep ; remainder of 

 elytral surface composed of about equal areas of elevated, smooth, dark areas 

 and depressed, densely punctured, dark green areas ; under parts of male uni- 

 formly bright metallic green. 



Female: Bluish-purple beneath, prosternum more smooth and shining; 

 anterior tibia arcuate, not suddenly dilated at tip. 



Male : Prosternum densely hairy ; anterior tibia arcuate and suddenly di- 

 lated at tip. 



Pupa. The pupa (Plate VII, fig. i) is of the common CJiryso- 

 hothris type; white or yellowish-white in color, head hent sharply 

 forward, resting on the breast with the legs and wing pads folded on 

 the ventral surface. Length, lo to 12 mm.; width, 5 to 5.5 mm. 



Larva. The larva (Plate VII, fig. 2) is whitish, and of the typical 

 flathead type, sparsely covered with fine bristle-like hairs. The ven- 

 tral plate is oval, roughened and marked by a long inverted V, formed 

 by two deep grooves, the apex of the V touches the anterior margin 

 of the plate while the open end stops about one-sixth from the pos- 

 terior margin. The ventral plate is of the same oval shape but slightly 

 smaller than the dorsal, the median groove does not reach either mar- 

 gin. The fourth segment is shorter and narrower than the fifth. 

 The last segment is decidedly constricted. Length, 24-27 mm. Width 

 of first thoracic segment, 4.5-5.5 mm. 



Egg. The egg is oval, semitransparent, flattened on the side which 

 comes in contact with the bark ; average measurements are about i by 

 .6 mm. The eggs are deposited singly, in crevices or under the edge 

 of bark scales. Observations indicate that eggs may be deposited in 

 clusters or near to one another, as seven young larvae were found 

 under one piece of bark, roughly 6 by 8 inches, and three full grown 

 larvse making pupal cells in an area three inches square. 



