MALTHINUS. 61 



than twice as long as their united breadth, apex 

 sulphur-yellow. 



I, Posterior legs yellow. 



Head black behind, reddish-yellow in front ; thorax 

 black, sides reddish-yellow ; elytra gray-yellow, a badly 

 defined spot round scutellum and a broad transverse band 

 before the sulphur-yellow apex blackish ; under-side, base 

 of antennae and legs yellow, Ijreast more or less dark. 

 Tliorax about as long as broad. Rather common. 



M.fasciatus, Fall. 



II, Posterior legs brown. 



Brown ; forehead, apex of elytra, base of antennae and 

 front legs yellow ; elytra with a broad pale transverse l)and 

 on front half. Very similar to M. fasciatus, but smaller, 

 darker and with longer thorax. Eather common. 



M. halteatus, Suf. 



&. Elytra confusedly punctured, somewhat in wrinkles, 



more than three times as long as their united breadth, 



unicolorous black. 



Black ; mouth, base of antennae and legs reddish ; front 



of head lighter in male ; thorax rather l^roader than long. 



Not uncommon. M. frontalis, Marsh . 



B. Length 2|— 2| lines. 



Head black behind, yellow in front; thorax yellow, with 

 two black spots, only indicated in male, often extensive in 

 female ; scutellum yellow ; elytra gray-yellow, base, suture 

 and a spot before the sulphur-yellow apex dark ; abdomen 

 and legs yellow, under-side of head and breast blackish. 

 Head with a furrow at base ; elytra not much shorter than 

 abdomen, rather finely punctured, witli indistinct traces of 

 striae. Common. M. punctatiis,^o\uc 



llalthodes. 



A, Length 1 line or more. 



a. Head (without eyes) as Inroad as, or broader than 

 thorax. 

 I. Antennae entirely blaclcish or brownish. 



1. Thorax blackish, with base, apex and more or 

 less of hinder part of side margin yellow ; length 

 2-|— 2^ lines. 



