14 PROCEEDINGS OP THE NATIONAL MUSEUM vol.74 



The two North American species are distinguishable as follows : 



1. Head behind eyes much narrower than at eyes ; front wings bifasciate ; 



female only . agenioides Viereck. 



Head behind eyes nearly as broad as at eyes; wings hyaline throughout; 

 male only strigosa (Cresson). 



MALLOCHIA AGENIOmES Viereck 



Figs. 2c-d, 3?, 6d 



MallocJida agenioides Viereck, Proc. U. S. Nat. Mus., vol. 43, 1912, p. 591, female. 

 Type.— Cat. No. 15036, U.S.N.M. 



Observations based on type and one other female. 



Female. — Temples much narrower than eyes, their cephalo-caudad 

 length little more than a third the shortest diameter of eye ; occipital 

 carina joining hypostomal carina some distance behind mandible; 

 cheeks much broader than temples; vertex, frons, face, and clypeus 

 basally closely and finely punctate ; clypeus half as long as interf oveal 

 line; malar space three-fourths basal width of mandible; antennae 

 two-thirds as long as body, first four flagellar joints elongate and 

 successively gradually shorter, fifth abrutly shorter, subapical joints 

 about as long as thick. Thorax twice as long as deep, finely and 

 closely punctate, pronotal depression striate, scutellum polished; 

 propodeum rather steeply sloping apically, opaque, finely rugulose 

 punctate, basal carina obsolete. Abdomen finely punctate opaque, 

 first tergite nearly polished, very faintly shagreened; first tergite 

 two and a half times as long as broad at apex, postpetiole slightly 

 longer than broad; second tergite twice as long as broad at base; 

 ovipositor sheath half as long as abdomen. 



Ferruginous with orbits, face, clypeus, mandibles basally, pro- 

 pleura, front legs, and scutellum paler; mandibles apically, ovi- 

 positor sheath, and apical joint of hind tarsus blackish; flagellum 

 beyond middle of first joint blackish with an incomplete white 

 annulus centering on joint 7; wings hyaline with transverse clouds 

 in front wing opposite apex of costa and apex of radius. 



The second specimen was captured May 27, 1911, at Anacostia, 

 D. C, by P. R. Myers. 



MALLOCHIA STRIGOSA (Cresson) (new combination) 



Mcsoleptus ? strigosus Cresson, Trans. Amer. Ent. Soc, vcd. 4, 1872, p. 167, 



male. Type.— Cat. No. 1604, U.S.N.M. 

 Oausocontrus ? strigosus (Cresson) Davis, Trans. Amer. Ent. Soc, vol. 24, 1897, 



p. 311, male. 

 Neniatopodius longicaudus Ashmead, Proc. Wash. Acad. Sci., vol. 4. 1902, p. 201, 



male (not female). 



The unique type from Texas is the only known specimen of this 

 species. 



