31 



Psinidia eucerata (Han-.). 24 c?, 18 ?, and 2 pupee, Jackson- 

 ville and Ft. Reed, mostly the latter, between April 6 and May 6 ; 

 taken at Ft. Capron, April 19, by Messrs. Hubbard and Schwarz 

 (No. 442), and at Appalachicola by Mr. Thaxter. Mr. Conistock 

 took this insect on white sand, and remarks that the lighter parts 

 of the body and tegniina exactly resemble the color of the sand where 

 they occur, while the darker parts correspond to the burnt vegetable 

 matter always found mingled with the sand ; and the mottling pro- 

 duces so perfect a mimicry that he has often been unable to distin- 

 guish a grasshoj^per which he had seen alight within six fefit from 

 where he stood. 



Trimerotropis picta Scudd. 16 d, 13 ?, and 5 larvje and 

 pupae. Ft. Reed and Jacksonville, at the same time as the preceding ; 

 taken at Cedar Keys, by Messrs. Hubbard and Schwarz, June 4 

 (No. 441), and at Appalachicola by Mr. Thaxter. 



Tettix rugOSUS Seudd. 10 c?, 19 ?, taken at Ft. Reed April 

 22-26, and 1 d" taken April 6, at the same place. Mr. Comstock 

 found all the species of Tettigididae in damp places on black muck. 



Tettix arenosus (Tetrix arenosaBm-m.). 4 ?, Ft. Reed, April 

 20-21. I have recently received the same species from Georgia; it is 

 closely allied to T. rugosa Scudd., but the wings scarcely surpass the 

 pronotum, a feature which appears to be constant. 



Tettigidea lateralis (Say) Scudd. 19 cf, 17 ?, and 14 larv« 

 and pupas were taken at Ft. Reed April 20-26 ; taken at Appalachi- 

 cola by ]\Ir. Thaxter. 



Batrachidea Cl'istata (Harr.) Scudd. 5 d", 6 9, and 2 pupaj 

 were taken at the same time and place as the preceding. 



A few immature Tettigida? remain undetermined. 



Mantides. 



Oligonyx graminis {Thespis graminis Bates' Mss.). Body 

 filiform. Head strongly depressed, with a transverse central sulcus; 

 eyes large, obovate, very prominent, diverging posteriorly ; poste- 

 rior border of head tuberculate at outer angles ; clypeus, and all parts 

 in advance of eyes, forming a small triangle, at the apex of which 

 is the minute mouth ; ocelli very large and prominent, equidistant, 

 obovate; antennae pubescent; whole head testaceous, obscurely dotted 

 with black, the ocellar scrobes black. Prothorax very long, linear, a 

 little expanded at the base of the legs, in front of them gently 



