50 bulletin: museum of comparative zoology. 



POLYSPHINCTA MORTUARIA, Sp. nOV. (Fig. 36.) 



Female. Length 6.5 mm. Small, slender, principally black, but varied 

 somewhat with brown, especially on the abdomen. Head not preserved; the 

 central part of the antennae visible, the joints slightly longer than wide. 

 Thorax smooth or faintly punctulate, the metanotum with indications of a 

 transverse and a lateral longitudinal carina. Abdomen sessile, elongate, grad- 

 ually enlarged to the tip. 

 Ovipositor preserved only 

 at the base. Legs only in 

 part preserved. They 

 appear to be dark in color 

 and apparently have some 

 of the tarsi variegated or 

 banded. Wings hyaline, 

 Fig. 36. — Polysphincta mortuaria, sp. nov. Type. stigma fuscous; nervures 



slightly lighter. Stigma 

 broadly lanceolate; marginal cell long and narrowly acuminate at the tip. 

 Areolet wanting, the transverse cubitus long; recurrent nervure received 

 considerably beyond the transverse cubitus. Cubitodiscoidal cell rather long, 

 the cubitodiscoidal nervure slightly and evenly curved. Submedian cell 

 much longer than the median, the transverse median nervure strongly oblique. 



Tijpe.— No. 2134, M. C. Z., Florissant, Col. (No. 13,397, S. H. 

 Scudder Coll.). 



Polysphincta inundata, sp. nov. 



Female. Length 12-13 mm. Large and stout; the body black, with a 

 considerable amount of brown on the abdomen and legs. Antennae two-thirds 

 the length of the body, slender, fusco piceous; basal joints of the flagellum 

 about twice as long as wide; apical joints narrower, but smaller, being still 

 twice as long as wide. Thorax quite distinctly and rather coarsely punctate, 

 the pleurae more or less rugulose. Metanotum partially areolated. Abdo- 

 men stout, about one and one-half times as long as the head and thorax to- 

 gether; first segment black, more or less longitudinally rugulose and with a 

 longitudinal lateral carina ; following segments fuscous, indistinctly sculptured. 

 Ovipositor as long as the abdomen and probably longer, as its tip is not pre- 

 served. Wings subhyaline; stigma and veins dark fuscous; stigma broadly 

 lanceolate; marginal cell long, narrow, strongly acuminate toward the tip. 

 Transverse cubitus very short, separated from the recurrent nervure by twice 

 its length. Discocubital cell long, the discocubital vein rather sharply bent 

 at its middle. Submedian cell no longer than the median, the transverse 

 median nervure scarcely oblique. 



