WALSH DESCRIPTIONS OF. N. AM. HYMENOPTERA. I4I 



by its immaculate black face, black mandibles, immaculate abdo- 

 men, and rufous venter. 



Pillipla Calebs, n. sp. — rf. — Differs from the normal inquisitor $ only 

 as follows :— 1. The whole face, excepting the terminal fovea; but includ- 

 ing a short orbit just passing the origin of the antenna;, is white. 2. The 

 antenna; are full \ as long as the body, the scape white below, the flagel- 

 lum rufous below. 3. The metathorax is rather closely and finely acicu- 

 late up to the two carina;, leaving the space between them, the posterior 

 declivity, and the lower part of the pleura, all highly polished. Some- 

 times on the hind edge of the scutel there is a pair of small, obscure, 

 whitish spots, transversely arranged. 4. The 1st joint of the abdomen is 

 full \ longer than wide, and its carina; extend nearly to the tip, and are 

 loftier and more acute than in V inquisitor, though the entire joint exactly 

 resembles that of my £ of inquisitor. All the joints immaculate. 5. . . . 

 6. The legs are pale rufous. The 4 front legs with the coxa;, both tro- 

 chanters, knees, tibia;, and tarsi, all white. Hind legs with the 2d tro- 

 chanter white; femora wijh their extreme tips black; tibia; white, with 

 their 2d and terminal \ black; tarsi white, with the extreme tips of the 

 joints black. Length $ .30-. 35 inch. Front wing $ .23-.29 inch. 



Two <$ ; ? unknown to me. But for the white orbits not ex- 

 tending to the occiput, and the absence of the white spot under 

 the front wing, this might be taken for the S of vidua ?, n. sp. 

 But in all the numerous cases known to me where the ? in Ich- 

 neumonidce has white orbits and a black face and the 6* a white 

 face, the 6* has orbits as long as those of ? . And there seems 

 scarcely any sexual variation in the 3 typical white spots before 

 and under the front wing. Readily known from my 6* of inqui- 

 sitor by its white face and clypeus ; and from scripttfrons 6* by 

 the very short orbits, the absence of the white spot under the front 

 wing, the black metasternum, and the longer 1st abdominal joint. 



[This is without doubt the true $ oi inquisitor, Say, as the Entomolo- 

 gical Society possesses specimens of both sexes of the latter species bred 

 from the same cocoon. The d 1 correlated with the true Cj inquisitor by 

 Mr. Walsh evidently belongs to another species allied to alboricta and 

 tndagatrix. — Cresson.] 



Pimpla? illdagatriX, [Walsh, Trans. Am. Ent. Soc iii. p. 146.]— $.— 

 Differs from the normal inquisitor only as follows : — 1. The antennae are 

 full \ half as long as the body, the 1st joint of theflagellum 3 times as long 

 as wide; the scapus is whitish below, and the extreme base of the flagel- 

 lum is often rufescent. 2. The abdomen has the normal tubercles sub- 

 obsolete and joints 2-to 4 elongate. Joint 1 is \ narrower at tip than the 

 base of 2, full h longer than wide, and nearly of uniform width except at 

 the extreme base. None of the joints are perceptibly sanguineous at tip. 



