OF NEW ENGLAND. 135 



tranversely oblong piece bearing the three ocelli ; in front 

 of this is a smooth triangular area which rapidly contracts 

 to a narrow line which connects this area with the ante- 

 rior portion of the epicranium, thus dividing the front 

 region of the head into two lateral halves composed of the 

 large broad pieces, unusually developed in this genus, 

 which bear the ovate eyes ; the anterior portion of the 

 epicranium is narrow triangular, and its surface is very 

 convex ; clypeus very short, tranversely linear oblong ; 

 the mandibles are long and narrow, their tips very acute 

 and slightly incurved ; antenna? nine-jointed ; second joint 

 nearly as long as all the remaining ones collectively, a little 

 dilated beyond the middle, but not bent so much as in A. 

 fasciata Newp.; the succeeding four joints are shorter and 

 more closely united together than in A. fasciata and the 

 three terminal ones are united apparently into a single 

 joint more acute than in the European species. Thorax 

 and abdomen much flattened, hardly convex above ; pro- 

 thorax longer than broad, triangular ; meso-scutum very 

 small, trapezoidal, the sides converging a little towards 

 the scutellum, which is larger than the scutum, oblong, 

 twice as long as broad, the sides very exactly parallel and 

 a little convex behind next the curved transversely oblong 

 post-scutellum ; on each side is a linear oblong parapsidal 

 piece, and the parapsidal pieces on each side of the 

 scutum are here especially marked, occupying a space 

 larger than the scutum itself; m eta- thorax narrow, small, 

 shorter than broad. The fore wings have the costa divided 

 into three convex portions of which the basal third is 

 most convex ; the sub-costal nervure follows these convex- 

 ities, terminating nearly at the outer third of the wing, 

 directed inwards at its extremity towards the middle of 

 the wing, being more incurved than in A. fasciata. Hind 

 wings nerveless, lanceolate, obtusely angulated in the 

 middle of the costa, apex sub-acute. The legs are rather 

 long and slender ; coxse long ; femora, especially the hind 

 ones, considerably swollen ; tibia? long, slender, not dilated 

 at the extremity, with very slight and unequal spurs ; 

 tarsi five-jointed, slender, of very equal length, not dilated 

 at the extremity, hairy and having the tip of each joint 

 provided with a slender spine. The six-jointed abdo- 



