THE CANADIAN KNTOMOLOGIST. 75 



looks a good deal like the common Gortyfia nehris ; in Aureolurn, a much 

 prettier species, the subterminal field is pale golden yellow and thus 

 approaches Stiria; the $ ovipositor is exserted. 



1. Spumosum Gr. Kansas ; Illinois. 



2. Aureolum Ify. Ediv. Arizona. 



Fala Or. (1875). 

 Type : F. Ptycophora Gi-. Proc. Ac. Nat. Sci. Phil., 425. 

 I have figured the single species in my Illustrated Essa}-, and the 

 diagnosis is given as above. 



I. Ptycophora Gr. CalifiDrnia. 



Plagiomimicus Gr. (1873). 



Type : P. Pityochromus Gr. 



Front with an empty and exposed cup-shaped protuberance, the frontal 

 scales being short and mossy. A slender terminal claw on front tibije. 

 In Tepperi the frontal excavation is less prominent, but otherwise this 

 species agrees. As compared with the preceding genera, the three species 

 are slenderer and have a casual reseml)lance to the Heliothid genera 

 Schinia and Lygrauthoecia. As in Stihadium the labial palpi are short, 

 here they hardly reach the top of the more prominent infra-clypeal plate 

 in the more typical forms. The species are olivaceous fuscous ( Pityo- 

 ehromus, ExpaUidus), or of a delicate olivaceous green (Tepperi). Both 

 Mr. Morrison and Mr. Smith wrongly give the fore tibire of Tepperi as 

 unarmed. 



1. Pityochromus Gr. Mass. to Kansas and the South. 



Schinia media Morr. 



2. Expallidus Gr. Montana. 



3. Tepperi Morr. Southern States, Arizona. 



This genus may l)e considered as a division of Basilodes with the 

 others which 1 have associated with it. The primaries do not show the 

 tooth of Stiria. The course of uniting these genera seems to me not 

 unadvisable, but tlie fate of one must be that of them all. Although the 

 characters are principally the same and only offer comparative differences, 

 allowing no value to the tooth or the modifications in shape of primaries, it 

 is not a little singular that each has two or more species united by struc- 

 tural detail, general appearance, color and pattern, all, properly speaking, 

 rather sub-generic than generic characters. The best marked seems to me 

 Plagiomimicus, where the cup-like clypeus is rather narrower, much 



