996 



FA ;\n L Y L. SCAT? AB^EID.q^,. 



c. Mentiim normal in shape; clypeiis narrow, feebly reflexed; thorax 

 triangular; color never uniform black. XXXVII. Euphoria. 



cc. Mentnin cuii-shapcd ; clypeus broad, strongly retlexed ; thorax quad- 

 rale with prominent angles; color uniform black or piceous. 



XXXVIII. Ckemastochilus. 

 (/(/. Kpimera of mesothorax not visible from above; elytra not sinuate lie- 

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

 (/. Hind coxiP contiguous; thorax without median groove; size 9 or 

 more nun. 

 c. Body almost glabrous ; color uniform ; size large, IS 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. 

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



XLI. Trichius. 



(/(/. Hind coxa' widely separated; thorax with a deep median groove; 



size small, not over 7.5 mm. XLI I. Valgi'S. 



XXXVI. CoTiNis Biirni. 184:2. (Gr., "oleaster," the wild olive 



tree.) 



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

 horn. One of the two knc>wn species occurs in the State. 



IS.jT (5894). CoTiNis NiTiDA Linn., Mus. Ludov. Ulrich., 17G4, 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, bi'illiant 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 

 lolie covering the scutellum. Upper surface wholly 

 smooth. Length 20-2;j mm. (Fig. 414.) 



Knox and Posey counties; frequent. July 

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

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

 monly known 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- 

 vosfrrna). The larva^ feed upon the roots of grass and sometimes 

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

 crawl upon their l)acks, making no us(^ of their short legs. AUor- 

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

 American genus. 



Fig. 414. Xatur.il size. 

 (.■Vftpr Riley.) 



