1906.] NATURAL SCIENCES OF PHILADELPHIA. 283 



metazonal one particularly heavy; lateral portions of the caudal mar- 

 gins of the disk somewhat elevated ; lateral lobes slightly longer than 

 deep, caudal margin with a distinct but shallow elytral sinus, ventral 

 margin sinuate obtuse-angulate, the margin supplied with low tubercles 

 which are the terminations of low subobsolete ridges radiating from a 

 point on the ventral section of the lateral lobes. Prosternum unarmed. 

 Mesosternum distinctly but not greatly transverse, the foramina large 

 and well separated. Metasternum strongly transverse, the cephalic 

 margin slightly broader than the mesosternum, caudal section regularly 

 narrowed, the foramina nearer the caudal margin, transverse and con- 

 nected by a rather broad sulcus. Tegmen rather coriaceous in textiu'e, 

 the greatest width (excluding the anal field) contained slightly more 

 than three times in the length; dorsal outline when viewed laterally 

 (excluding the horizontal anal field) nearly straight, costal margin 

 slightly arcuate cephalad, strongly arcuate distad; apex dorsad and 

 rather narrowly rounded, costal field with a distinct rounded proximal 

 lobe; costal field with the mediastine vein short, oblique, anterior 

 radial vein sending nine principal oblique rami to the costal margin, 

 the most of which are bifurcate in the distal portion of their length; 

 radial ramus issuing distinctly but not greatly proximad of the middle 

 of the tegmen, the area between this and the posterior radial vein 

 with six principal transverse veins, which enclose areas roughly quad- 

 rate in shape; anterior ulnar vein undulate, reaching to the apex of the 

 tegmen, the area between the radial ramus and this vein having five 

 principal transverse veins ; area between the two ulnar veins with seven 

 principal transverse veins; anal area narrow but continued to very 

 near the apex of the tegmen, and bearing in addition to one principal 

 precurrent though erratic longitudinal vein several others of similar 

 character in the proximal section, short transverse veins numerous. 

 Wings in repose reaching almost to the tips of the tegmina. Abdomen 

 moderately compressed ; supra-anal plate slightly longitudinal, rounded, 

 the apex emarginate and a shallow longitudinal median depression is 

 present on the proximal half, ciliate; ovipositor about twice as long 

 as the pronotum, heavy, hardly curved, the dorsal margin nearly 

 straight and with a slight basal emargination, ventral margin regularly 

 arcuate, apex acute, dorsal margin and short distal section of the ven- 

 tral margin fiftely serrate; subgenital plate short, transverse trigonal, 

 the apex with a V-shaped emargination. Cephalic femora about as 

 long as the head and pronotum, carinate, the ventral margins wath fom- 

 to six blunt spines; cephalic tibiae slightly longer than the femora, 

 bullae perforate and expanded on both sides, dorsal carinae with one 



