996 



FAMILY L. — SCARABiEIDiE. 



c. Mentum normal in shape; clypeus narrow, feebly reflexed; thorax 

 triangular ; color never uniform black. XXXVII. Euphoria. 

 cc. Mentum cup-shaped ; clypeus broad, strongly reflexed ; thorax quad- 

 rate with prominent angles ; color uniform black or piceous. 



XXXVIII. Cremastochilus. 

 an. Epimera of mesothorax not visible from above; elytra not sinuate be- 

 hind the humeri ; middle coxaa without an elevation between them. 

 d. Hind coxre contiguous; thorax without median groove; size 9 or 

 more mm. 



e. Body almost glabrous ; color uniform ; size large, 18 or more mm. 



XXXIX. OSMODERMA. 



ee. Body pubescent ; color variegated ; size less than 13 mm. 



/. Elytra longer than wide; thorax sinuate at base; elytra yel- 

 lowish with black spots, XL. Gnorimus. 

 ff . Elytra not longer than wide ; thorax rounded at base. 



XLI. Trichius. 



dd. Hind coxa? 'widely separated; thorax with a deep median groove; 

 size small, not over 7.5 mm. XLII. Valgus. 



XXXVI. Cotinis Burm. 1842. (Gr., "oleaster," the wild olive 



tree.) 



In this genus the clypeus is armed in front with a short, erect 

 horn. One of the two known species occurs in the State. 



1857 (5894). Cotinis nitida Linn., Mus. Ludov. Ulrich., 1764, 26. 



Elongate-oblong, somewhat pointed in front. Dull 

 velvety green above, sides of thorax and elytra brown- 

 ish-yellow ; head, middle of metasternum, tibiae and 

 sometimes the abdomen, brilliant metallic green; fe- 

 mora and usually the abdomen reddish-yellow. Head 

 deeply excavated, the front, with a horizontal spine ex- 

 tending forward nearly to the upturned spine of cly- 

 peus. Thorax triangular, the apex truncate, less than 

 half the width of base, the latter with a triangular 

 lobe covering the scutellum. Upper surface wholly 

 Fig - 4 Ai N a .t ura l size - smooth. Length 20-23 nun. (Fig. 414.) 



(After Riley.) no/ 



Knox and Posey counties; frequent. July 

 24- August 2. Probably occurs over the area covered by the Aus- 

 troriparian fauna, of which it is a striking member. It is com- 

 monly know 7 n as the "fig-eater," and in the South often flies in 

 great numbers by night, especially in sandy districts, making a 

 loud buzzing noise similar to that made by the May-beetles (Lach- 

 nosterna). The larvae feed upon the roots of grass and sometimes 

 are harmful to strawberry and other plants. When they move they 

 crawl upon their backs, making no use of their short legs. Allor- 

 hina Burm., to which the species is usually ascribed, is a South 

 American genus. 



