40 ENTOMOLOGICAL NEWS. [Feb., '03 



Superior appendages not quite as long as 9 + 10, about twice as long 

 as 10, black; viewed from above, divergent in basal half, convergent in 

 apical half, except at the extreme apex where they are parallel or slightly 

 divergent, inner edge of each appendage more or less regularly curved 

 throughout, but the outer edge strongly angulate at mid-length, apex 

 slender, compressed, but not acute ; viewed in profile, each appendage 

 is almost straight in its basal half, regularly, but not abruptly, curved 

 downward in its apical half, two slight, inferior convexities are evident in 

 the basal half, the second longer than the first. 



Inferior appendage about three-fourths as long as the superiors; viewed 

 from below, elongate, triangular, about three times as long as its width at 

 base, sides straight, ape.x rounded, entire ; in profile view, its margins 

 parallel, upper margin forming a shallow concave curve. 



Wings clear, hyaline, venation black except the costals which are lined 

 with yellow. Pterostigma almost black, only one cross-vein beneath it 

 and that near its proximal end. 



Front wings : 7-8 antecubitals, 5-6 postcubitals, triangles 2-celled, in- 

 ternal triangles 3-celled, one submedian cross vein distal to the level of 

 the first antecubital ; three or four post-triangular cells, then two rows to 

 the level of separation of median and principal sectors, than three rows 

 and two rows alternating (Da Costa cT')i or two rows almost to the margin 

 (Formosa (^), 3-4 cells at margin of wing ; membranula cinereous. 



Hind wings: 5 antecabitals, 7-9 postcubitals, triangles 2-celled (free in 

 one wing Formosa (J 1 ), internal triangles free, one other submedian cross- 

 vein which is proximal to the level of the first antecubital ; two or three 

 post-triangular cells, then two rows soon increasing to 9-12 marginal cells; 

 anal triangle 2 (Da Costa ^) or 3 (Formosa rj) -celled ; membranule cin- 

 ereous, basal fourth or less white. 



Dimensions, Abdomen (incl. apps.) 38, sup. apps. 3, hind wing 35, 

 pterostigma 2.5, third femur 8 mm. 



9 unknown. 



Habitat Da Costa, Atlantic County, New Jersey, July 16, 

 1901, one male by Mr. K. Daecke. Formosa Bog, on road 

 northward from Mt. Pleasant R.R. Station, Cape May County, 

 New Jersey, July 22, 1892, one male by P. P. Calvert. 



Both Mr. Daecke and myself have met this species along the 

 sandy roads through the pine barrens. The insect usually keeps 

 at a considerable distance above one's head, both when in flight 

 and at rest. We have seen other individuals which \ve believe 

 to be of this species, but in spite of special trips to secure them 

 and patient waiting in the hope that they might come within 



