WALSH — DESCRIPTIONS OF N. AM. HYMENOPTERA. 13^ 



Two d" ; one $. Distinct from all the preceding by the multi- 

 annulate antennae and the white scutel. Similar antennae occur 

 in P. ephippium^ Brulle (N. Afr.) 



Pimpla {Cryptiis) conqaisitor, Say (= Cryftus plun'vinctus, Say). — 

 $. — Black. ifiTearf subopaque, finely and closely punctate, more sparsely 

 on the vertex. Palpi white. Antennte full f as long as the body, brown- 

 black, the flagellum tinged more or less with rufous below, its ist joint 4-4J 

 times as long as wide. Thorax subpolished, closely and finely punctate j 

 metathorax more coarsely rugoso-punctate, its sides pubescent, the two 

 normal carinse pretty distinct and extending to the posterior declivity, 

 which, as well as the space enclosed by the carinse, is highly polished. 

 Tegulae and a quadrangular spot acutely prolonged in front, and under- 

 lying the humeral suture and nearly reaching its tip, both white. Abdo^ 

 men subopaque, confluently and rather coarsely punctate, more sparsely 

 behind and on the tips of the joints. The usual tubercles indistinct or 

 obsolete. Joint i longer by \ than wide, \ wider behind than before, the 

 usual carinse only reaching halfway to the tip, and enclosing an oval, 

 polished excavation. In the suture between i and 2, a deep, lateral, trans- 

 versely oval fovea occupying about \ of it. Tips of 1-7, except the part 

 of I adjoining the above fovea, and except a small lateral space on the 

 others, terminated by a conspicuous, well-defined white line, of uniform 

 width, which is sometimes tinged with sanguineous. Ovipositor scarcely 

 \ as long as the body, piceous ; sheaths black, pubescent, a little tapered, 

 basally full as wide as the last tarsal joint of the hind leg. Venter black- 

 ish, broadly whitish on the sutures except sometimes behind. Legs pale 

 rufous. Front legs with the coxse often basally more or less black; tro- 

 chanters sometimes whitish ; tibise with a subbasal, exterior, fuscous line, 

 the space around which is more or less extensively whitish. Middle legs 

 with the first \ of the tibise black and the second \ white, the remaining 

 J often with a short exterior black line next the white annulus; spurs 

 whitish, sometimes tipped with black; tarsi dusky, with the basal |-^ of 

 joints 1-3 and 5 whitish. Hind legs with the terminal \ of their femora 

 black; tibise white, with their basal g and terminal \ black; spurs white; 

 tarsi black, with the basal f-J of joints 1-3 and 5 white. Wings subhya- 

 line, tinged with smoky yellow; veins black, radius rufous; stigma black, 

 its basal \ reddish-white. Areolet rhomboidal. Bullse normal, C and D 

 wide apart. Length $ •27-.55 inch. Front wing $ .23-.49 inch. Ovipos. 

 .i2-,27 inch. 



The (^ diflfers from $ only as follows : — i. The ist joint of the flagellum 

 is only 3 times as long as wide ; the terminal f-f of the scape, and gener- 

 ally the 1st joint of the flagellum are whitish below, and the rest of the 

 flagellum is rufous below. 2. The ist joint of the abdomen is about \ nar- 

 rower at tip than the base of the 2d, and ex,cept at the extreme base its 

 sides are subparallel. Its carinse almost always extend nearly to the tip. 

 3d. In the front legs the coxse, both trochanters, and the tarsi, are white; 

 and in the middle legs the coxse are whitish interiorly. Length c? .22-.33 

 inch. Front wing c? •^7~-25 inch. 



