246 PROCEEDINGS OF THE ACADEMY OF [June, 



Tettigidea lateralis (Say). 



Miami, Fla., March 28, 1910; 4 n. 



Homestead, Fla., March 17-19, 1910; 2 <? , 3 9 , 4 n. 



Specimens of this genus were found in the same locations as the 

 series of the two preceding genera but always in much smaller 

 numbers. The nymphs all show the front margin of the pronotum 

 distinctly angulate while the series of adults all have this margin 

 broadly arcuate. This would suggest that the ancestral form from 

 which this species is derived had the cephalic margin of the pronotum 

 produced over the head in a distinct angle. 

 Radinotatum brevipenne peninsulare subsp. now 



This insect differs from Radinotatum brevipenne in the longer head 

 with much more produced rostrum and more concave face, longer 

 antennae, pronotum with shallower lateral lobes, more linear and 

 usually shorter tegmina, longer and more slender caudal femora and 

 more delicate, shorter, genicular angles. The subgenital plate in the 

 male is also usually longer and more slender. 



Type ; o 71 : Homestead, Dade County, Florida, about wire-grass 

 in undergrowth of pine woods, March 17-19, 1910. (Hebard.) 

 [Hebard Collection.] 



Size large for the genus. Body exceedingly slender and much 

 compressed. Head nearly twice as long as pronotum, strongly 

 produced, rostrate, face concave; fastigium in front of the eyes as 

 long as the eyes, nearly twice as long as broad, the lateral margins 

 parallel and strongly rotundato-rectangulate on the cephalic margin; 

 antennas long, triquetrous, rather broadly ensiform; eyes extremely 

 elongate-ovate. Pronotum elongate, the dorsum subequal in width; 

 lateral lobes vertical and subequal, cephalic margin very oblique, 

 slightly concave, the ventro-cephalic angle sharp and obtuse, caudal 

 margin broadly obtuse-angulate emarginate with the ventro-caudal 

 angle sharp and acute. Tegmina as long as pronotum, decidedly 

 elongate-lanceolate, narrowing proximad, apex very narrowly 

 rounded, separated by a space nearly twice as great as the tegminal 

 width. Subgenital plate very long and lanceolate, one and one-quarter 

 times the length of the pronotum. Caudal femora exceedingly slender, 

 nearly as long as the abdomen exclusive of the subgenital plate, with 

 genicular angles produced, the inner considerably more so than the 

 outer. 



Allotypic 9 . Data the same as the type. 



Considerably larger than the male, body less slender, antennae 

 proportionately more broadly ensiform, tegmina separated by a 



