1864.] 299 



a short subacute tubercle. Wings subliyaline, more or less tinged with 

 fuscous ; nervures and stigma black ; areolet 5-angular or somewhat 

 4-angular, the anterior and lateral nervures equal, the posterior nervure 

 angular. Legs black, the anterior tibiae and all the tarsi more or less 

 tinged with jiale rufous. iVbdomen ovate, robust, bright rufous, highly 

 polished; basal segment somewhat flattened, the apical third rather 

 suddenly quadrate, the lateral angles prominent, extreme base of the 

 petiole blackish ; ovipositor very short, scarcely as long as the second 

 segment. Length 4^ — 5 lines; expanse of wings 7 — 8 lines. 



Hah. — Delaware and Virginia. Dr. Thos. B. Wilson. 



Resembles C. americaims, but is more robust, the abdomen is highly 

 polished, the areolet of the wings is quadrate, and the ovipositor is 

 scarcely one-fourth as long as in that species. 



14. Cryptus similis. n. sp. 



Black : anteuufe above with a white annulus ; abdomen and most of the legs, 

 rufous; posterior tarsi with a broad white annulus; wings almost hyaline. 



Female. — Black, shining, clothed with a short pale pubescence, more 

 obvious ill certain lights ; face densely punctured, the clypeus rounded 

 in front, the margin somewhat reflexed and polished ; palpi pale ; an- 

 tennje as long as the body, black, sometimes tinged with rufous beneath, 

 the 8th to 12th joints Avhite above, the ord to 6th joints proportioned 

 as in limatus, but longer and slenderer. Thorax shining, densely punc- 

 tured; tegulaj whitish ; metathorax sculptured as in limatm. Wings 

 almost hyaline, very faintly tinged with fuliginous; nervures and stigma 

 black ; areolet quadrangular, as in limatm. Legs rufous, the four an- 

 terior pair paler in front ; the coxjie, trochanters, tips of the posterior 

 femora, and their tibiae black ; posterior tarsi black, the second, third 

 and fourth joints white. Abdomen oblong-ovate, rufous, highly pol- 

 ished; basal segment much arcuated, elongate and slender, not much 

 dilated at tip, the apical third subquadrate, the angles not prominent ; 

 ovipositor shorter than the abdomen. Length 4 lines; expanse of 

 wings 7 lines. 



i/ai.— Delaware. Dr. Thos. B. Wilson. 



Closely resembles G. limatus, but is smaller and distinguished at once 

 by the color of the legs, which is mostly rufous, with the posterior 

 tarsi mostly white ; the basal segment of the abdomen is more linear 

 and not so abruptly quidrate at the tip. 



