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ENTOMOLOGICAL SOCIETY 



suture is distinct. Wings clear hyaline, the stigma brown, the veins 

 pale, the cells as in figure* 4. The abdomen is longer than the head and 

 thorax united, cylindrical and very similar to the worker in Acan- 

 thostichus Mayr, the petiole being longer than thick, with a tubercle 

 beneath at base, the pygidium at apex hairy and armed with a ro\\ 

 of comb-like teeth. 



c?. Length about 4 mm. Highly polished black; the mandibles, the 

 scape and pedicel of the antennae, and the legs, except knees, tips of 

 front tibiae and all tarsi which are more or less yellowish, rufous or 



FIG. 4. Ctenopyga townsendi: Male in center, tip of female abdomen at right, 

 male hypopygium (//) at left. 



rufo-piceous, the coxae and femora dark ; the flagellum is brownish 

 yellow, subclavate, the last joint conical, a little longer than the two 

 preceding joints united, the joints I to 6 longer than thick; wings much 

 as in female. The parapsidal furrows are complete and the lateral 

 lobes have the humeral furrow well developed; the hypopygium (fig. 5), 

 which is strongly forked, and the genitalia are testaceous. 



Type. No. 7818, U. S. National Museum. 

 La Puerta, Mexico. One female and two male specimens 

 taken May 6, 1895, by Professor C. H. Tyler Townsend. 



NEW GENERIC NAMES. 



Prof. T. D. A. Cockerell has kindly called my attention to 

 the fact that three genera recently established by me are pre- 



