1904.] NATURAL SCIENCES OF PHILADELPHIA. 669 



Section BatrachidesB. 

 TETTIGIDEA Scudder. 

 1862. TeUigidea Scudder, Boston Journ. Nat. Hist., VII, p. 476. 

 Type. — T. lateralis (Say). 



Tettigidea pulchella n. sp. 



Type: $ ; Bartica, British Guiana. April 27, 1901. (R. J. Crew.) 

 [A. N. S. Phila.] 



Differing from all the other species of the genus in the truncate 

 fastigium. 



Size rather small; form moderately elongate; surface scabrous. 

 Head with the vertex about equal to one of the eyes in width, truncate 

 cephalad and projecting but slightly cephalad of the eyes, not exca- 

 A^ated, median carina distinct and rather prominent, frontal carina 

 distinct; frontal costa arcuate when viewed laterad, rami very slight 

 and very gradually diverging; antennae inserted between the ventral 

 portions of the eyes; eyes subtrigonal in outline, slightly prominent. 

 Pronotum subtectate, caudal process reaching the tips of the o\aposi- 

 tors but not of the caudal femora; cephalic margin rectangulate, pro- 

 duced centrally into an acute spine; median carina distinct, moderately 

 arcuate cephalad; lateral carinae obsolete between the sulci; humeral 

 angles not projecting; posterior process of the lateral lobes rectangulate, 

 inferior sinus long but not very deep, elytral sinus acutely cut. Teg- 

 mina cylindrical ovate, apex broad and blunt. Wings slightly exceed- 

 ing the caudal process of the pronotum. Cephalic femora with the 

 dorsal sulci distinct but shallow. Caudal femora rather short and 

 heavy, the dorsal outline strongly arcuate, the ventral outline nearly 

 straight, femoral lobe sharp and projecting, genicular spine short and 

 blunt, margins finely serrate, external pagina and dorso-Iateral face 

 shall owly but distinctly sculptured; tibise rather strongly armed, 

 canthi serrate; metatarsi equal to the third joint in length. 



General color bistre, inclining toward cinnamon below; antennae 

 tawny proximad, blackish distad; cephalic and median limbs more or 

 less distinctly annulate with the darker shade on a cinnamon ground. 



Measureme7its. 



Length of body, ... 9.8 mm. 



Length of pronotum, 9 " 



Humeral width of pronotum, 2.5 " 



Length of caudal femora, 6 " 



The type is the only specimen which has been examined. 



