22 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. Gl. 



notauli very short, sternauli complete; mesoscutum broader than 

 long, flattened on disk; sciitellum flat, the furrow without carinae; 

 propodeum subopaque, completely areolated, petiolar area occupying 

 half its length, areola hexagonal, upper hind angles barely promi- 

 nent; stigma broad, radius slightly beyond middle; radial cell barely 

 longer on metacarpus than stigma; second recurrent slightly beyond 

 middle of areolet; cubitus obsolete beyond areolet; nervulus post- 

 f ureal; nervellus slightly broken near bottom, discoidella obsolete; 

 legs, especially hind tibia, stout; abdomen broad, polished; lirst 

 tergite medially shagreened, laterally and apically longitudinally 

 striate, dorsal carinae distinct to spiracles, the space between broad 

 and flat, lateral carinae strong to apex, the tergite half as broad at 

 apex as long, curved; tergites 2-4 large, second longest, third and 

 fourth equal; other tergites very short; ovipositor sheath slightly 

 longer than first tergite. 



Black; tergites 2 and 3 testaceous; mandibles, scape and pedicel, 

 tegulae and wing bases pale; legs testaceous, hind tibiae and tarsi 

 somewhat infuscate ; wings hyaline, venation brown. 



Type locality. — Alpine region of Mount Washington, New Hamp- 

 shire. 



Type.— CQ.t. No. 25026, U.S.N.M. 



One specimen taken by Mrs. Annie T. Slosson. 



(PIMPLINE n. sen. ct n. sp. AsJimead)=DELOMERiSTA TEXANA (Cresson). 



Has been compared by the present writer with Cresson's type and 

 is practically identical. 



PLECTISCUS PARVUS, new species. 



"Apcrilaptits ]iarvu>! Ashineud," Slosson, Ent. News, vol. S, 1897, p. 237. 



A typical Plectiscus with complete apical and lateral carinae and 

 obsoletely defined combined areola and basal area. 



Female. — Length, 3.5 mm.; antennae (incomplete); front wing, 

 3.5 mm. 



Head polished in front view and much broader than long; eyes 

 large, nearly semicircular in outline, as long as width of face, paral- 

 lel within ; malar space longer than basal width of mandible ; temples 

 strongly receding, posterior side of ocellar triangle much longer than 

 lateral sides, the postocellar and ocell-ocular lines equal. Thorax 

 polished; notauli obsolete; propodeum obsoletely roughened. Ab- 

 domen shagreened to middle of second tergite, thence coarsely and 

 sparsely punctate; first tergite petiolate, postpetiole nearly twice as 

 long as wide at apex; second much shorter than first; ovipositor 

 sheath nearly twice as long as first tergite. 



Black to piceous, with abdomen more or less pale in middle; man- 

 dibles, palpi, scape, tegulae, wing-bases, front coxae, and all tro- 

 chanters whitish; front and middle legs otherwise and hind coxae 



