(Page 550) 



3. Head and pronotum glistening. Elytra at middle brownish-yellow. L. 



2.5-4 mm 2. P. cornutus iravh. 



Head and pronotum dull. Elytra dully black. L. 2.5-4 mm 



3. P. alutaceus Thorns. 



4. Pronotum and elytra rather robustly and densely punctated. L. 2.5-3 



mm 4. P. nodifrons Sahib. 



Pronotum and elytra with fine and scattered punctation. L. 2-3 mm. 



5. P. nitens Sahib. 



(Page 551) 



1. Subgenus Pyctocraerus Ihoms. 



1. P . arenarius Fourcr. 



(Fourcr. Bnt. parisien. I. 172 ; »angl"o. Ka'f. M. II, 630. - morsitans 

 Payk., Erichs. Kaf. Mk. Er. I, 585; CJen. Spec. Staph. 782; Kraatz Ins. 

 D. II, 342; Ihoms. Skand. Col. Ill, 126; Muls. et Eey Brevip. 1879, 16). 



In relation to the following species easily identified by the distinct 

 constriction of the head. 



Black, glistening; elytra brown, disk most often reddish-brown; legs 

 brownish-yellow with brownish-black femora. 



The head is as broad as (o) or somewhat narrower than pronotum (o), 

 distinctly constrictly behind, anteriorly impressed, the impression finely 

 reticulated, occasionally almost smooth, vertex with rather dense and ro- 

 bust punctation, and with a deep, short groove in middle-line, which po- 

 steriorly runs out into the deep transversal groove of the constriction, 

 antennae rather short and robust; pronotum at least as broad as elytra, 

 transverse, slightly convex, deeply middle-grooved, on sides with rather 



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