198 



ENTOMOLOGICAL NEWS. 



[May, '12 



III, mesepisternum two-thirds black, pale area not reaching antealar 

 sinus, mesepimeron as in II, with pale slightly reduced, metepisternum 

 and metepimeron pale as in II, but a distinct line on second lateral 

 suture. 



IV, mesepisternum two-thirds black, but pale area reaching the 

 antealar sinus, mesepimeron as in III, but posterior ventral pale area 

 reduced to a spot, metepisternum black below and narrowly along 

 second lateral suture, metepimeron black, pale above in a sinuate pat- 

 tern. 



V, thorax all black, but a narrow pale antehumeral stripe not reach- 

 ing the antealar sinus, and a narrow, abbreviated streak on the mete- 

 pisternum near its middle, just posterior to the first lateral suture. 



In the tabulation which follows, these numerals, followed by + or 

 mean respectively that the thorax is slightly darker or lighter than the 

 number indicates. 



MALES ONLY. 



In all the males studied the abdomen is black, with narrow 

 basal rings on 2-7; in one specimen from Wister, Oklahoma, 

 there is some pale color laterally on 1-5, and 9 and TO have a lit- 

 tle pale color laterally; in another male from Clifton, Texas, 

 the pale color on 1-5 is faintly discernible; a male from Auburn, 



