WALSH DESCRIPTIONS OF N. AM. HVMENOPTERA. 1 55 



at tip inside the white knee, the tibiae, except the white knee, with an ex- 

 terior fuscous vitta which on their middle h is more or less obsolete, and 

 with a narrow, terminal, fuscous annulus, and the tarsal joints with their 

 extreme tips fuscous. Hind legs, with the tip of the 1st and the whole of 

 the 2d trochanter and broad knees, white; the base of the 1st trochanter, 

 the extreme base and a subterminal annulus on the femora, the tibiae ex- 

 cept the white knees and except an exterior white vitta occupying their 

 middle ^, and the tarsi, except the basal ^-| of the 1st joint which is white, 

 all black. Spurs whitish. Wings hyaline; veins black, radius rufous; 

 stigma rufous edged with black. Radial area rather long, its posterior 

 angle 135 . Areolet triangular, its interior side J shorter than either of 

 the others, peduncled, the peduncle about 2 as long as the triangle. Bulla; 

 4; B at the extreme posterior end of its vein, C close to the anterior end 

 of its vein, D very widely separated from C, and E rather further from 

 the areolet than from the angle of its vein. Length $ .28 inch. Front 

 wing J .27 inch. Ovipos. .14-. 15 inch. 



Variety- — $. — Differs from [normal] $ only as follows: — 1. The short 

 white lines on the vertex are reduced to mere white dots. 2. The 2d joint 

 of the scapus and the 1st of the flagellum are pale brown, not white, ex- 

 teriorly. 3. Onlv the basal k of the side of the scutel, in addition to its 

 tip, is white. 4. The white band on the metathorax is reduced to 4 white 

 dots arranged in a transverse curve with its convex side forwards; and 

 there are no rufous markings on the sternum, except a large spot above 

 the hind coxa and a small one above the middle coxa. 5. The ovipositor 

 is very pale rufous. 6. In the middle legs there are no fuscous markings, 

 save that the extreme tip of the tibiae and of the tarsal joints is fuscous. 

 In the hind legs the vitta on the tibke is pale brown, so as to be scarcely 

 noticeable, not white; and the tarsi are dusky, not black, and with no 

 vestige whatever of any white annulus on joint 1. Length 9 .31 inch. 

 Front wing $ .30 inch. Ovipos. 14 inch. 



The (5* differs from [normal] $ only as follows: — 1. The face, cheeks, 

 orbits to the top of the vertex and half way up behind the eye from the 

 cheeks, and the clypeus, are all white. 2. The entire scapus is white be- 

 low, and the 1st joint of the flagellum is only 3^ times as long as wide. 

 3. The carina; of the metathorax are entirely obsolete. 4. In addition to 

 the white markings of $, the entire lower face of the pro- and meso-ster- 

 num and halfway up the mesothoracic pleura, a line on the anterior mar- 

 gin of the collare, and a short longitudinal line before the hind coxa, are 

 all white. No rufous markings. 5. The 1st abdominal joint is only 3 

 wider behind than before, and joint 2 is scarcely wider than long. 6. The 

 venter is mostly whitish except at tip, and the carina is protuberant at 

 base but not at tip. 7. In the middle legs, the coxae as well as both tro- 

 chanters, broad knees, tibke, and tarsi, are white; and there are no fus- 

 cous markings save that the extreme tip of the tibiae and of the tarsal joints 

 is fuscous. In the hind legs, the coxa j are inferiorly white towards their 

 tips, both trochanters are white except two dusky lines on the upper face 

 of the basal one, and on the tibiae the exterior median white vitta becomes 

 a median white annulus. Length o* .29 inch. Front wing ^ .26 inch. 



