THE LEAP BEETLKS. 1133 



209G (G703). MONACHUS SAPONATUS Fabr.. S.vst. Elent., II. ISdl. 55. 



Ovate. Dark steel bine, shining; labruin and four basal joints of an- 

 tenna' dull yellow. Thorax with scattered shallow punctures near the base. 

 Elytra 1 punctures coarse on basal half, finer and subobsolete near apex. 

 Length 2-2.5 nun. 



Throughout the State; frequent. May 29-August 15. Taken 

 Ity heating and sweeping foliage. 



XVIII. DIACHUS Lee. 1880. 



Very small, sub-cylindrical oval species, having the tarsal claws 

 broader at base; antenmv not more than half the length of body, 

 with joints 6 to 11 broader; eves feebly emarginate ; thorax as wide 

 rs elytra; prosteruum usually quadrate and flat. 



KEY TO INDIANA SPECIES OF DIACHUS. 



<i. Head and thorax dark metallic; scutelluni obtusely triangular. 

 I). Upper surface not uniform blue. 



c. Scutellum flat; head and thorax dull reddish-brown; elytra brassy 



green; legs yellow. 2d!)7. AURATUS. 



cc. Scutellum elevated behind: upper surface dark bluish-green; an- 



teniuv and legs reddish-brown. 201 )S. CATARIUS. 



bit. Upper surface uniform blue; antenna- and legs yellow. 



2l I! 10. PA I.LIDICORNIS. 



(iii. Head and thorax yellow; elytra metallic green; scutelluni acutely tri- 



angular. 21(10. CHLORIZANS. 



iT (C.707). DIACHUS AfRATrs Fabr.. Syst. Eleut.. II. ISdl, f>7. 



Oval, subcylindrical. Head and thorax reddish-brown, bronzed: elytra 

 brassy green or brownish ; antenna*, legs, sides and under surface of thorax 

 dull yellow; abdomen black. Thorax very iinely alutace;ms. IJows of ely- 

 tral punctures fine but complete. Length 1..V2 mm. 



Throughout the State; common. May 31-August 7. Taken by 

 sweeping and beating. 



2008 (C.712). DIACHUS CATARITS Suftr., Linnea. Entom.. VII. 1sr,:;. r,s. 

 Form of inii'iitiis. Dark bluish-green, shining. Antenn;e, legs and pro- 



sternum dull yellow. Thorax distinctly alutaceous. Punctures of elytra 

 coarser than in niirutiix. Length 2-2. ."> mm. 



Marshall, Starke, Kcsciusko and Knox counties; scarce. June 

 11-July 15. 



2009 (07i:n. DIACHVS PALLIDICORNIS Suffr.. Linnea. Entom.. VII. 1S53. 

 Oval, subcylindrical. Dark steel-blue, shining; antenna' and legs yel- 



low. Thorax finely alutaceous. not punctured. Elytral punctures rather 

 coarse. Length 2-2.5 mm. 



Throughout the State; frequent. May 11-July <i. Taken by 

 heating and sweeping foliage. 



