(Page 3) 

 spects deviates from the other Staphyllnidae genera, the last three joints 

 of the antennae are connate forming a sharply setoff, comparatively large 

 distal joint, whereby the antennae become club-formed. Of the individual 

 joints the first is most often the longest, also the second and third as 

 a rule somewhat elongate, sometimes the second longer than the third, some- 

 times the reverse, a condition, which not infrequently is of some impor- 

 tance as specific character. The fourth joint is most often smaller than the 

 preceding, . and the following outer joints (5-10) in most species increase 

 somewhat in thickness dlstally, as they simultaneously become gradually short- 

 er; distal joint is of varying length. The antennae most often reaches on- 

 ly a little out over the posterior margin of pronotum, most often about :ts 

 long as head and pronotum together, sometimes shorter. They are inserted 



either back of the base of mandibles or inside this beneath side or fore- 



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margin of the forehead, or at inner margin of the eye or on forehead be- 

 tween the eyes - conditions, which become significant as devision charac- 

 ters between certain groups. 



c. The mouth-parts, which serve as equipment for eating and feeling, 

 afford particularly important, even though very small, and only by special 

 preparation and magnification distinct generic characters. They consist of 

 upper lip, cheek-bones, jaws with jaw-feelers, and lower lip with the chin, 

 lip-feelers and tongue: 



The upper lip ( labrum) , which covers the mouth above, and which posteri- 

 orly Is connected with the mouth-shield ( clypeus ) , is horny- or parchment- 

 like, often entire, but not infrequently divided or cleft at middle-line 



