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9. Group Proteinini. 



(Erichs. u'ai. Mk. Br. I, 641 ; 5en. Spec. Staph. 901 (ex parte); Kraatz 

 Ins. D. II, 1019; Janglb. Kaf. If-. II, 756. - Proteinldes Thorns. Skand. Col. 

 Ill, 217. - Proteiniens -r Phleobiens Muls. et Fey Bre'vip. 1878, 217). 



Prothorax back of fore-coxae chitinized, and the spiracula here covered. 

 The head without ocelli or with only one ocellus at middle of vertex. 

 Antennae 11-jointed, inserted before the eyes under side-margin of forehead. 

 Fore-coxae broadly cylindrical, short and of little prominence. Hind-coxae 

 flat, the hindmost trochanter large, appreesed.! 1 Tarsi 5-jointed. Body short 

 and proportionately broad. 



To this group only 3, to Omaliini closely allied genera. 

 Key to Genera. 



1. Antennae toward tip claviform thickened with several larger distal joints. 



Pronotum not grooved in middle-line, its hind-corners entire 



121. Proteinus Latr. 



Antennae not clavate, only with a somewhat larger distal joint. Pro- 

 notum sharply middle-grooved, its hind-corners with an angular in- 

 cision 2. 



2. Head small; eyes rather large; side-margin of forehead before the eyes 



not dilated. Vertex without ocelli 122. Magarthrus Steph. 



Head large, broaa; eyes rather small. Side-margins of forehead before 



eyes lobiform dilated. Vertex with an ocellus at middle 



123. Phi oe obi urn Er. 



-82- 



*} or suDDortinc - translator. 



