74 TEKEDILIA — PTINIDAE. 



JPTIJVIDES, 



A. Elytra punctured and hairy. 



a. Third and fourth tarsal joints double as broad as 

 long, emarginate at apex ; intermediate coxae con- 

 tiguous. 



Antennae eleven-jointed ; tarsal claws small. 



Hedobia, Sturm. 



b. Third and fourth tarsal joints simple ; intermediate 

 coxae placed apart. 



I. Scutellum distinct. 



Bases of antennae almost contiguous ; elytra with regular 

 and distinct punctured striae ; fifth tarsal joint only a little 

 longer than second. Ptinus, Lin. 



II, Scutellum not distinct. 



Bases of antennae placed apart ; eyes small ; elytra with 

 indistinct striae ; fifth tarsal joint much longer than second. 



Nipt us, Boield, 

 J^, Elytra smooth and shiny. 



a. Thorax pubescent, with longitudinal ridges. 



Head hairy ; antennae shorter than in Gibbiicm, last 

 joint ovoid ; pointed at apex ; posterior trochanters mode- 

 rately long. Mezium, Leach. 



b. Thorax bare, even. 



Head not hairy ; last joint of antennae long, pointed at 

 apex ; posterior trochanters nearly as long as femora. 



Gibbiuiii, Scop. 



Hedobia, 



Gray-brown ; pubescence on sides of thorax gray and on 

 scutellum white ; elytra brown, with a spot at shoulder, the 

 apex and a broad transverse band (dilated in middle and at 

 each side) behind middle thickly covered with gray-white 

 hairs. Thorax with a prominence before scutellum. L. 

 2 1. Not uncommon, H. impcrialis, Lin. 



I*tlmis, 



A, Elytra of both sexes oblong, with parallel-sides and 

 tolerably right-angled shoulders. 



a. Elytra without markings. 



Eed-brown, sprinlded all over with white and yellowish 



