658 PROCEEDINGS OF THE ACADEMY OF [Scp 



STUDIES IN THE ORTHOPTEROUS SUBFAMILIES ACRYDIIN^ (TETTIGIN^), 

 EUMASTACIN^ AND PROSCOPIN^. 



BY JAMES A. G. REHN. 



The material treated in the foHowing pages is contained in the 

 collections of the Academy, the United States National Museum and 

 of Mr. Morgan Hebard, of Chestnut Hill, Philadelphia. The material 

 studied consisted of two hundred and twenty-seven specimens, repre- 

 senting forty-six species and thirty-one genera, of which one genus and 

 twelve species are described as new. The author wishes to thank Dr. 

 W. H. Ashmead, of the U. S. National Museimi, and Mr. Hebard for 

 their kindness in permitting the use of material. 



Subfamily ACRYDIIX^E (Tettigince auct.). 



Section Cladonotae. 



DASYLEUROTETTIXi n. gen. 



Allied to Diotarus and Trachytettix Stal, but differing from the former 

 in the presence of tegmina and wings, the rugulose vertex, deplanate 

 and scabrous pronotum, and the truncate character of the cephalic 

 margin of the same. From Trachytettix it is separated by the form of 

 the antennae, the unspined vertex, the longer cephalic femora and the 

 position of the antennae. 



Form depressed, subquadratc in transverse section at the humeral 

 angle ; surface scabrous. Facial scutellum with a V-shaped longitudi- 

 nal excavation, carinse distinct, subparallel ; antennae placed against 

 the carinae of the facial scutellum and distant from the eyes, apex of 

 width equal to the remainder of the appendage, vertex broad, about 

 twice the width of one of the eyes. Pronotum truncate cephalad, pro- 

 duced caudad beyond the tips of the caudal femora; humeral angle 

 prominent. Cephalic femora nearly three times as long as wide. 

 Caudal femora heavy and with the paginae moderately sculptured. 

 Posterior metatarsi distinctly longer than the third tarsal joints. 

 Dasyleurotettix curriei n. sp. 



Types: cT' and 9 ; Mount Coffee, Liberia. April, 1897. (R. P. 

 Currie.) [U. S. Nat. Mus., No. 8111.] 



Head short and broad; vertex transverse, the cephalic margin trun- 



1 daavg rough, /isvpog flat, tetti^ grasshopper. 



