668 Mr. T. D. A. Cockerell — Descriptions and 



antennse dark, flagellum ferruginous at end ; mcsofhorax 

 dull, densely punctured on a microscopically tessellate 

 ground ; scutellum shining but well punctured ; area of 

 metatliorax with very fine rather irregular longitudinal 

 rugfe or raised lines ; posterior truncation very narrow, well 

 defined. Legs black, with pale hair, the small joints of tarsi 

 somewhat reddish ; brush at end of hind basitarsus shining 

 orange ; hind spur with a couple of very long blunt branches 

 near the base, and on the apical part a short keel-like 

 lamina ; tegulte rufo-fulvous, darker basally. Wings hya- 

 line, iridescent, nervures and stigma pale testaceous ; first 

 r. n. joining second s.m. a considerable distance before end; 

 third t.-c. and second r. n. greatly weakened. Abdomen 

 broad, shining, minutely punctured, with very broad dense 

 pale ochreous-tinted hair-bands at bases of segments 2 to 4, 

 that on the second variably narrowed in middle ; a patch of 

 similar hair on each side of first segment ; hair of apical 

 segment pale. 



Hah. Forvao&Q. {Sauter). Berlin Museum. 



The type and another are from Chip Chip, Feb, 1909 ; a 

 third is simply marked " Formosa.-" Very close to the 

 Indian H. nasicensis, Ckll., but differing in details of 

 sculpture. 



Epeolus peregrinus, Cockerell. 



When describing E. peregrinus I neglected to compare 

 it with E. fervidus, Smith, also found iu India. Mr. G. 

 Meade- Waldo has very kindly compared the types of the 

 two species, and finds the following important difi"erences : — 



E. pe)'egrinus. — Second s.m. triangular, pointed above; 



disc of mesothorax more sparingly covered Avith 



coarse punctures ; ventral surface of thorax covered 



with a dense silvery pubescence. 

 E. fervidus, Smith. — Second s.m. quadrate, broad above; 



disc of mesothorax densely and coarsely punctured ; 



ventral surface of thorax black. 



Triepeolus gahrielis, Cockerell. 



Florissant, Colorado, June 1, 1908 (^Cockerell). Previously 

 known only from California. 



Triepeolus rohweri, sp. n. 



(J . — Length about 9 mm. (abdomen of type contracted). 

 Looking exactly like T. subalpinus, Ckll. ( ? ), but differ- 

 ing as follows : more robust ; face densely covered with 



