THE CANADIAN ENTOMOLOGIST. 233 



6. Metanotum with coarse, irregular, radiating striations ; antennae and 



legs stout nevadicus. 



Metanotum finely sculptured 7 



7. Tegulae testaceous ; metanotum finely granulated tnofitanus. 



Tegulse whitish ; metanotum very finely striated elegans. 



MALES. 



1. Marginal cell as long or longer than the first submarginal (if shorter 



it is scarcely noticeable) 2 



Marginal much shorter than the first submarginal 6 



2. Entirely black 3 



More or less red 5 



3. Pubescence of thorax black ; forewings, except basal third fuscous ; 



metanotum strongly reticulated nubeciilus (^^nigropilosus.) 



Pubescence of thorax white 4 



4. Wings hyaline throughout ; first joint of flagellum fully one-thiid 



longer than the second ; metanotum not depressed before 



apex unicolor 



Forewings stained with fuscous medially ; first joint of the flagellum 

 about one-quarter longer than the second ; metanotum more or 

 less depressed before apex occidentalis- 



5. Pubescence of thorax white ; metanotum recticulated bicolor. 



Pubescence of thorax black tiubecultis. 



6. More or less red ; tegulaj whitish ; wings subhyaline 7 



Caeruleous ; wings fuliginous cce.ruletts. 



7. Metanotum very finely granulated elegans. 



Metanotum very finely and transversely striated bellus. 



ASTATUS, LATR. 



Astatus, Latr. Precis. Caract. gen. Ins., p. 114., 1796. 



Asiata, Latr. Hist. Nat. gen. et part, des Crust, et Ins. III., p. 

 336., 1802. 



Astatus, Kohl. Verh. Zool.-botan. Gesell. Wien. XXXIV., p. 431, 

 1885. 



