186 [January 



gin very slightly emarginate and the lateral teeth short and obtuse; on 

 each extreme side of the postscutellum a tuft of yellowish pubescence; 

 metathorax with a deep yellowish mark on each side deeply emarginate 

 on the outside ; tegulse dull ferruginous. Wings fusco-hyaline, fuscous 

 at tips, subhyaline at base, with a brassy-gloss especially towards the 

 apex ; nervures fusco-ferruginous. Legs, including the coxae, entirely 

 pale ferruginous. Abdomen ovate, robust, deep black ; on each side of 

 the first segment a large, somewhat irregular, semicircular, bright yel- 

 low mark, rounded before and nearly meeting on the posterior middle; 

 on each side of the two following segments a broad, transverse yellow 

 band, largest on the second segment, with the anterior margin slightly 

 concave ; on the fourth segment a small cuneiform yellow mark pointed 

 outwardly; on the fifth segment three small, approximate, yellowish 

 spots; remaining segments obscure fuscous, pubescent, immaculate, 

 the apical segment obtusely pointed and depressed ; beneath piceous, 

 clothed with pale sericeous pubescence, the four apical segments yel- 

 lowish-ferruginous. Length 4y lines; expanse of wings 8 lines. 

 Collection. — Dr. J. Gundlach. One specimen. 



Genus CCELIOXYS, Latr. 

 Coelioxys Uhlerii, n. sp. 



Coelioxys rufipes, Cresson, Proc. Ent. Soc. Philad. ii, p. 407 $. 



Collect inn. — Ent. Soc. Philad. One specimen. Mr. P. R. Uhler. 



This fine species, which I mistook for C. rufipes Guer., differs from 

 that species by the much larger size (nearly three lines longer), the 

 more distinct markings, and the different shape of the anal plates of 

 the abdomen, those of rufipes answering to the description given by 

 (xuerin of his 9 specimen from Mexico. (See Proc. Ent. Soc. Philad. 

 ii, p. 408.) The basal segment of the abdomen of rufipes is always 

 more or less rufous, while in Uhlerii it is black. 



Coelioxys rufipes, Guer. 



Coelioxys rufipes, Guer. Icon. Reg. Anim. iii, p. 452, pi. 73, fig. 9 ; LaSagra*s 

 Hist. Cuba, Ins. p. 778. 



Collection. — Ent. Soc. Philad. Two 9 , one % , specimens. 



Prof. Poey informs me that " the Coelioxys retire for the night, many 

 in company, upon the Escoba amarga (Parthenium hysterophorus, L.) 



M. Guerin describes and figures (LaSagra's Hist. Cuba, Ins. p. 779, 

 pi. 19, fig. 11,) Coelioxys abdominalis as being found in the vicinity of 

 Havana, as well as on the Island of St. Thomas, but Prof. Poey informs 

 me that neither Dr. Gundlach or himself, after forty years of research 

 in the Island of Cuba have ever fouud it. 



