954 FAMILY L. SCARAB/KID^:. 



imago stage. It sometimes appears in immense numbers on roses 

 and various flowers and also on leaves and blossoms of grape, often 

 completely ruining the crop of the latter. Bordeaux mixture is a 

 repellant, but in addition to its use, until after the grapes are set, 

 the beetles should be beaten into umbrellas and burned. 



1801 (5691). MACKODACTYLUS ANGUSTATUS Beauv., Ins. Afr. et Amer., I, 



1805, 30. 



Form of the preceding but somewhat larger. Uniform dull brownish- 

 yellow except the apex of tibiae and apical halves of tarsal joints, which 

 are piceous. Male with prosternal spine short, not visible from the front, 

 the bristles of ventral segments very short. Female with all the hairs of 

 disk of thorax erect, those of the margins recumbent; abdomen with nu- 

 merous erect hairs along the middle, these arising from strong punctures. 

 Elytra with erect hairs near the base. Length 9-11 mm. 



Crawford and Perry counties ; rare. May 2] -June 25. A spe- 

 cies of southern range, belonging to the Austroriparian fauna of 

 the State. 



XXI. DIPLOTAXIS Kirby. 1837. (Gr., "double + order.") 



Small, oblong, convex species, brown or piceous in color and 

 having the elytra not sulcate but simply and irregularly punctate 

 or with the punctures of feeble costa* arranged in rows, the wider 

 intervals being irregularly punctured. The antennas are 10-jointed 

 and only five ventral segments are visible. The body is not broader 

 behind, as in S erica, and the tarsal claws are cleft or toothed. They 

 occur beneath flat stones, bark and logs, usually in dry, hilly locali- 

 ties. Three species have been taken in Indiana, while two others 

 may occur. 



KEY TO INDIANA SPECIES OF DIPLOTAXIS. 



a. Body pubescent; elytra without distinct rows of punctures. 



1802. SORDIDA. 



da. Body not pubescent above ; elytra with some of the punctures arranged 



in rows. 

 1). Thorax with a distinct impression near front and hind angles. 



c. Disk of thorax unevenly punctured, leaving smooth spaces near the 

 middle. LIBERTA. 



cc. Disk of thorax densely and more finely punctured. TRISTIS. 



lih. Thorax without, distinct impressions near the angles. 



(/. Clypeus semicircular, its front broadly and regularly rounded. 



1803. HARPERI. 



dil. Clypeus heiuiliexagonal. its front subsulcate or slightly emarginate. 



1804. FRONDICOLA. 



