(Page 607) 



The species live under the bark of insect-infested pinacious and 



deciduous trees. Of the few from Middle Europe and partly Horth Europe 



known species, one is rather common in Denmark. 



1. Ph. pusillus Jravh, 



(iJravh. Won. 205; Erichs. Kaf. Mk. Br. I, 631; (Jen. Spec. Staph. 87&; 

 Kraatz Ins. D. II, 988; Thorns. Skand. Col. Ill, 210; Pey Brevip. 1880, 

 184; Janglb. Kaf. M. II, 732). 



An Omallum- like, very small, flat, dull species, without distinct 

 punctation, and in connection with the generic characters, thereby easi- 

 ly identified. 



Brownish-black or brown; thorax dull, with feeble silky reflection, 

 naked; abdomen somewhat glistening, extremely finely short haired; the 

 head black; antennae, mouth-parts and legs reddish-yellow. 



Head and pronotum are not punctated, but together with elytra in the 

 surface very densely and finely shagreened; the head (Fig. 182) narrower 

 than pronotum, somewhat triangularly shaped with large, prominent eyes, 

 small ocelli on the vertex, and two very short, almost foveiform, but 

 deep forehead -grooves before these, and two feeble, flat impressions an- 

 teriorly, antennae short, robust, their nexi^ast five joints increasingly 

 transverse and together with the distal joint form a distally smoothly 

 thickened club. Pronotum is somewhat narrower than elytra, narrowing pos- 

 teriorly and with rectangular hind corners, at middle with two, posteri- 

 orly most often deep, oviform longitudinal impressions, and a flat im- 

 pression on each side; elytra amply lk times as long as pronotum, with 

 flat, scattered and feeble, most often indistinct punctation; abdomen with 



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