962 FAMILY L. SCARAB/EIIXE. 



obsolete. Meta sternum closely punctate, the hair sparse and long. Tarsal 

 claws with a stnmg median tooth. Male with anteunal club a little shorter 

 than stem; the next to last ventral segment feebly and broadly emarginate, 

 the last one more deeply emarginate and abruptly concave ; both roughened 

 or granulate in front of the emarginatious. Length 14-18 mm. (Plate I, 

 fig. 377.) 



Clark County ; rare. July 22. A species of southern range. 

 L. glaberrima Blanch., length 13-15 mm., is known from Illinois, 

 New York and southward. 



1811 (5744). LACHNOSTEKNA LONGITARSIS Say, Journ. Phil. Acad. Nat. Sci., 

 III, 1824, 241; ibid. II, 141. 



Elongate, slender, subcylindrical. Pale straw yellow; front of head 

 piceous. Clypeus concave, coarsely and very sparsely punctured; front 

 coarsely and densely punctured. Thorax short, strongly curved in front 

 of middle, margin entire, surface somewhat irregular, rather coarsely, shal- 

 lowly and closely punctate. Elytra coarsely and shallowly punctured, the 

 submarginal costa rather well defined. Metasternum closely but indistinctly 

 punctate, the hairs rather long, sparse. Male with antenual club a little 

 longer than stem ; abdomen slightly flattened at middle, last segment irregu- 

 larly concave. Length 10.5-13 mm. (Plate I, fig. 379.) 



Vigo County ; rare. July 28. One specimen in Wolcott collec- 

 tion taken at light in the city of Terre Haute. A western form 

 whose range is given as Illinois to Kansas, Montana and southward. 



GROUP B. 



The essential characters of 'this group are the siiiuation of the 

 apex of the hind tibia?, together with the more or less emarginate 

 clypeus and the 10-jointed antenna. The inner spur of the hind 

 tibia? is long, fixed and usually more or less curved or contorted. 

 Three species ascribed to the group have been taken in the State. 



KEY TO INDIANA SPECIES OF GROUP B. 



. Form slender, subcylindrical: color pale reddish- or brownish-yellow; 

 tooth of tarsal claws small, placed slightly below the middle. 



1812. GRACILIS. 

 oo. Form oblong-oval, more or less robust; color reddish-yellow to dark 



brown; tooth of claws strong. 



?>. Inner spur of hind tibia; of male curved at middle and angularly 

 bent at. tip; color pale chestnut brown; length 12-10 mm. 



1813. GIBBOSA. 



1)1>. Inner spur not angularly bent, usually nearly as long as the outer 

 spur; color dark reddish or chestnut brown, the surface more or 

 less hoary or pruinose. 1814. PRUNINA. 



