1896.] NATURAL SCIENCES OF PHILADELPHIA. 301 



indistinct line at apex of dorsal segments 1-3, black ; pilosity red- 

 dish and rather sparse, that on the occiput pertaining to yellow ; 

 none of the abdominal segments fringed; tegul?e strongly punctured 

 on anterior half. Length 16-21 mm. 



S . — Head strongly and evenly punctured throughout the front, 

 shallowly so on the occiput; antennae scarcely as long as the head 

 and thorax united, first and second joints of flagellum about equal 

 iri length, the terminal joint rounded at apex (the antennse are de- 

 cidedly stouter than in the male of Dreivseiii) ; thorax strongly punc- 

 tured but rather more closely than in the female, and the posterior 

 face of middle segment with large punctures ; abdomen closely 

 punctured particularly above, the last dorsal hardly cribrose ; second 

 ventral bituberculate. A yellow spot in the emargination of the 

 eyes, and the black on dorsulum and abdomen more generally dis- 

 tributed. Length 13-16 mm. 



Chapada (January, March and April). Eleven female and six 

 male specimens. The extent of black of abdomen and sides of thorax 

 is subject to variation : in two females the dorsal segments are almost 

 entirely black. The yellow spots on abdomen are constant in all 

 specimens, and may be regarded as a good superficial character in 

 ■distinguishing this species from Drewseni and allied species. 



mis vitripennis Sm. 



Chapada (March). Four specimens, 

 mis regina Sauss. 



Chapada (January to April). Thirty-nine specimens, all females. 

 Elis nigra Sauss. 



Chapada (October, February, March and April). Twenty-three 

 female specimens. 



^lis lucida Lep. 



Two specimens from Chapada, collected in December and INIarch 

 respectively, I refer with some doubt to E. lucida. The larger 

 specimen measures 27 mm. in length, whereas Saussure gives 38 mm. 

 Should my specimens be correctly determined, there is no reason for 

 considering this species as a variety of costalis, as suggested by 

 Saussure and Sichel on p. 219 of their catalogue, as it is clearly 

 distinct from that species. 



Elis hyalina Lep. 



Represented in the collection by numerous specimens of both 

 sexes from Chapada (December, March and April). In addition to 



