SYNOPSIS OF THE ORTHOPTERA OF WESTERN EUROPE. 171 



elytra, 7-omm. ^, l-5mm. 2 ; of posterior femora, 8-5mm. t? , 

 6-5miii. $ ; of ovipositor, l-5mm. 2 • 



Sierra Carpetana at Villaviciosa de Odon, near Madrid, Valladolid, 

 Pielago and el Espinar. 



6. Gryllodes littoreus, Bol. 



Straw-coloured ; coloration brighter and paler than in the other 

 species ; posterior feet notably long and slender, especially the spines of 

 the outer border of the tarsi, the last spine being nearly as long as the 

 terminal spur. In the shortness of the elytra and ovipositor it 

 approaches G. escalerae, but these characters are less marked than in 

 that species. Length of body, 12mm. ^ , 13mm. 2 ; of elytra, 8mm. 

 ^ , l-5mm.-2mm. J ; of posterior femora, 7mm. J , 4-2mm. ? ; of 

 ovipositor, 3-5mm.-4mm. 2 . 



Spain : Talavera de la Reina, near Toledo. 



7. Gryllodes boscai, Bol. 

 3 unknown. $ straw-coloured with chestnut markings. Allied to 

 G. panteli : from which it may be distinguished by the still shorter 

 elytra and by the having two yellow lines instead of 4 on the head 

 above. Length of body, 12mm. ; of pronotum, 2mm. ; of elytra, 

 l-Smm. ; of ovipositor, 6mm. 



Eastern coast of Spain : Jativa and Valencia. 



Genus IV : Brachytrypes, Serville. 

 The single European species is easy to recognise by its great size 

 and disproportionately large head. 



1. Brachytrypes megacephalus, Lefebr. 



Very large and robust ; tawny yellow ; head disproportionately 

 large; elytra and wings perfectly developed. Length of body, 40mm. 

 S^ and 2 ; of pronotum, 6mm. J , 5mm. ? ; of elytra, 30mm. S^ and 

 2 ; of ovipositor, 3mm. J • 



This giant cricket is a native of Sicily ; it occurs near Palermo on 

 the southern side of Val de Noto, on the sand-dunes near the sea 

 between Terra Nova and Bavajo opposite Vittoria. It extends through 

 North Africa as far as Senegal. Its stridulation is said to be extra- 

 ordinarily loud and penetrating. 



Genus V : Platyblemmus, Serville. 



This genus is easy to recognise by abbreviated organs of flight and 

 the remarkable veil-like appendage on the vertex of the male, and by 

 the triangular head of the female. 



Table of Species. 

 1. Cheeks produced into horns. Elytra <? white, 



leathery, with no stridulating tympanum ; vertex 



of ¥ acute . . . . . . . . . . . . 1. lusitanicus, Serville. 



1.1. Cheeks not produced ; elytra bordered with whitish ; 



and with tympanum : vertex in ? obtuse.. .. 2. caliendkum, Fischer. 



1. Platyblemmus lusitanicus, Serville. 

 Black ; elytra whitish ; easy to recognise by the horns of the cheeks, 

 by the leathery elytra with no tympanum, by the large appendage of 

 the vertex of the male, and by the acutely triangular head of the 

 female. Length of body, 24mm. 3 , 23mm. 2 ', of pronotum, 4-5mm. 

 (J , 4-lmm. 2 ; of elytra, 4mm. 3 , 0-8mm. 2 ; of ovipositor, 

 ll-5mm. 2 • 



