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80. Jenus Lathroblum Oravh. 



(CJravh. Micr. 1806, 130; Brichs. Jen. Spec. Staph. 588; Kraatz Ins. 

 D. II, 670; Thorns. Skand. Col. II, 197; Muls et Rey Bre'vlp. 1878, 26; 

 ianglb. Kaf. M. II, 501). 



The body is elongate, more or less cylindric; the head porrect. ob- 

 long or rounded, most often as broad as pronotum, with narrow or rather 

 narrow neck, and with small eyes; labrura most often deeply cleft; man- 

 dibliBs on Inner margin toothed; last joint of maxillary palpi very small, 

 spiculiform; antennae straight, filiform, their first joint longest. 



Pronotum most often oblong with parallel sides and with deflected, 

 slightly rounded-off fore-corners, at the middle line smooth, elsewhere 

 punctated; elytra as a rule longer than pronotum, but in several species, 

 of which both winged and Wingless forms occur, they are in the wingless 

 forms most often shorter than pronotum. Abdomen is of equal breadth, 

 only tapering posteriorly, its first ventral joint at middle finely carl- 

 nated, the fifth and sixth often provided with sex-characters, which 

 serve as important identification marks of species. The legs are rather 

 short; front-femora strongly thickened (Fig. 126), on ventral margin 

 obtusely tooth-formedly dilated; tibiae not spiniferous, the foremost 

 coarsely, on inner side groove-f ormedly produced, the hindmost at tip 

 obliquely truncated, and here the margin is densely haired; fore-tarsi 

 in both sexes strongly dilated, first Joint of hind tarsi short, a little 

 shorter than the second, their claw-joint rather short, hardly as long 

 as the other joints together. 



About twenty species are found distributed in Middle and North Europe; 



Fig. 126. front leg of L athrobium fulvipenne _;ravh. 



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