THE ANT-LIKE FLOWER BEETLES. 1338 



Lawrence County ; rare. June 5. Tlie leu.s, in the single speci- 

 men at hand, are pale, ^vllereas LeConte says that they are piceous, 

 with the base of front thighs rufous. A member of the Austrori- 

 parian fauna. 



Tribe IV. AXTHICIXI. 



To this tribe belong by far the greater number of species of the 

 family. They have the neck very small; mandibles emarginate at 

 tip ; middle eoxse nearly contiguoiis ; ventral segments five in both 

 sexes. Casey has divided the tribe into 16 genera, representatives 

 of ten of which have been taken in Indiana : 



KEY TO INDIANA fJEXERA OF ANTHTCIXI. 



a. Tliorax prolonged near !\\iex into a horn-like ]ir(jifss. 



h. Hind tarsi not longer tbnu tlie tibire. V. XoTOxrs. 



hh. Hind tarsi much longer than tin- tiliiie. VI. Mecvnotarsus. 



(la. Thorax not prolonged over the head. 



r: Yevy small and slender ant-like forms, having the front enxal cavi- 

 ties closed behind by a prolongation of the acute side pieces of the 

 prosternnni : head olslong, the eyes very small, ]ilaced in front of 

 middle. VII. Dilandius. 



er. Less ant-like in appearance; the front coxal cavities widely open lic- 

 hind. 

 (1. Sides of mesosternum more or less abnoiinally dilated; length not 

 over 4 mm. 

 p. Thorax deeply constricted or narr;iwed behind the middle. 



f. Antenme thick, moniliform or bead-like; constriction of thorax 

 extending across the dorsal snrface. VIII. Toiiodebus. 



ff. AntenniE long and slender ; constriction of thorax not extend- 

 ing across the dorsal surface. 

 cj. Last joint of maxillary palpi small or moderate, hatchet- 

 shapefl ; body very sparingly pun<'tate and bearing long, 

 erect sette or hair-like bristles. IX. Malpoeus. 



Off. Last joint very large and dilated, the sides equal ; punctua- 

 tion fine and dense without set.-e. X. Lappcs. 

 cr. Thorax not constricted except very feebly and near the base, the 

 sides oblique and straiglit ; antenna? stout; femora club-shaped, 

 the front ones strongly so. XI. IIemantus. 

 eld. Sides of mesosternum not dilated but straight and slightly oblique, 

 forming a point between the broad episternum and the coxie; 

 length less than H.5 mm. 

 h. Thorax normal and evenly convex; head subquadrate or rounded 

 behind. 

 /, Thorax moderately large, oblique at the sides near base; pu- 

 bescence simple. XII. Anthici-s. 



