Vol. xxvi] 



ENTOMOLOGICAL NEWS 



DIFFERENTIAL 

 CHARACTERS 



Pale postocular spots. 



Predominant color on 



thorax. 

 Blackish humeral 



stripe. 



Abdominal segment i : 

 Dorsuin. 



Sides 



Abdominal segment 2: 

 Dorsum 



Sides 



Abdominal segment 3: 

 Dorsum 



Sides 



HOMOEOCHROMATIC, 

 "BLUE" OR 

 "GREEN," 9 



Not confluent with the 

 pale color of the rear 

 of the head. 



Pale bluish. 



Wider than the pale 

 antehumeral stripe. 



Dark metallic blue or 

 green, only the ar- 

 ticular membrane 

 between i and 2 pale. 



Pale bluish. 



Dark metallic blue or 

 green for its entire 

 length, narrowed at 

 its hind end. 



Pale bluish. 



Dark metallic blue or 

 green contracted at 

 anterior end to a 

 mid-dorsal line(thus 

 forming what is usu- 

 ally described as a 

 basal pale ring in- 

 terrupted mid-dor- 

 sally) and at the 

 hind end to a smal- 

 ler degree. 



Pale bluish. 



HETEROCHROMATIC 

 OR "ORANGE," 9 



More or less confluent 

 with the pale color 

 of the rear of the 

 head. 



Yellow or pale orange. 



Narrower than the 

 pale antehumeral 

 stripe. 



Yellow or orange with 

 small black dots 

 (four, two or one). 



Yellow or orange. 



Yellow or orange with 

 black markings 

 varying from a nar- 

 row crescent at two- 

 thirds of the seg- 

 ment's length to a 

 spot on the first- and 

 one on the third- 

 third, connected by 

 a fine mid-dorsal 

 line. 



Yellow or orange. 



Yellow or orange, the 

 hindmost fourth 

 dark metallic green 

 prolonged forward 

 as a tapering black 

 line almost to, or to, 

 the fore end of the 

 segment. 



Yellow or orange. 



