48 bulletin: museum of comparative zoology. 



or two carinas that are present. Abdomen quite distinctly punctulate; 

 slender, considerably enlarged apically. The ovipositor is visible for a 

 distance equal to about two-thirds the length of the abdomen and was quite 

 probably longer as the tip seems to be broken away. Legs entirely ferrugi- 

 nous. Wings hyaline, with pale fuscous veins and stigma. Areolet present, 

 triangular, subsessile above, very long on the cubitus, the second transverse 

 cubitus being so strongly oblique that it forms a straight line with the first 

 abscissa of the radius. Recurrent nervure received by the cubitus far be- 

 yond the transverse cubitus; discocubital vein sharply curved and strongly 

 bent down at its base; median and submedian cells of equal length. 



Tijpe.— No. 2132, M. C. Z., Florissant, Col. (No. 2524, S. H. 

 Scudder Coll.). 



The insertion of the recurrent nervure is peculiar in this species, 

 being much farther from the transverse cubitus than in any living 

 species with which I am familiar. 



Lampronota tenebrosa, sp. nov. (Fig. 34.) 



Female. Length 5 mm. Ovipositor at least 6 mm. and probably longer 

 as the tip is not visible. Black or dark colored, the apical part of the abdomen 

 lighter. Wings hyaline. Antennae slender, the joints toward the base elon- 

 gate, those near the apex only one-half longer than wide. Surface of head 

 finely shagreened; pleurae smooth and shining. Metathorax rather low as 

 seen in lateral aspect, evenly rounded above. Abdomen broadly sessile, its 



surface finely shagreened, the 

 first segment apparently with a 

 pair of longitudinal carinae al- 

 though these may be due to 

 pressure. Tip of abdomen con- 

 siderably expanded. Legs rather 

 Fig. 34. — Lampronota tenebrosa, sp. nov. stout, brownish in color. Wings 

 T yP e - hyaline, narrow. Stigma and 



veins dark brown, the former 

 oval, rather broader than usual ; marginal cell small, the first section of the 

 radius not more than one-fourth the length of the second; submedian cell 

 slightly, but distinctly longer than the median; discocubital vein slightly and 

 evenly curved; areolet wanting, the second recurrent nervure received a con- 

 siderable distance beyond the transverse cubitus, nearly the length of the first 

 section of the radius. 



One specimen and reverse, Nos. Bio and B16, collected by Mr. S. 

 A. Rohwer at Station 13B; complete, but with the details of structure 

 not very clearly preserved. Type in the Amer. Mus. Nat. Hist. 



