Iiitoriio ad una nnova riryllacris di ^ladagaseai". 67 



:ilcmu' inisurc (in milliinetri) dol tipo di (iiiella spec.ie e di volci' 

 veriticai'c sc (|iU'sto presentasse certi particolari caratteri che ali 

 indicavo. 



II Dr. Kirby coii yTaiidc sollecitudine a geiitilezza, di cm aiicor 

 ([ui lo ringrazio vivaraente, non solo volle mandarmi le misure do- 

 niandategli, ma volle descriverini con accuratezza il tipo della Gr. 

 postica Walker. E poiche quest?, descrizione, a ine utilissima. puö 

 certo esser utile anche ad altri ortotterologi, io credo di hen l'are 

 pubblicandola. 



Gryllacris postica Walker. [Typus: 9J 

 „The nieasurenients are approxiniately as l'oUows: (tlie wings 

 are a little chipped, and the ovipositor; which is unusually long and 

 slender, is curved so as to niake il-difficult to get the exacts niea- 

 surements). 



Head (upperview) milliin. 372 



„ front view, from vertex to end of niandibles „ 9 



Breadth of face below eyes „ 5 



Pronotum . . „ 5 



Length of tegnien „ o5 



Breadth ,, „ „ 11 



Hind femora „ 15 



Ovipositor „ 19 (?) 



Pale yellowish; head above with a large blackish spot witliin 

 each eye, behind which is a smaller spot, almost contiguous with the 

 other, not extending to the hind border of the head. Thorax much 

 damaged, but with traces of blackish niarkings. Legs pale yellowish 

 Front tibiae with a sliort black band o,hove only. niiddle tibiae 

 slightly reddish above towards the base. and in the right side only 

 with traces of a pale brown band about the middle; hind femora 

 with the lower carina black behind for nearly half their length, the 

 lilack colour extending between theni at the extremity, and the spines 

 all black; but half way between the last spine and the termination 

 of the carina, the black colouring ceases suddenly. Hind tibiae as 

 tinged with reddish at the base for about V5 oi ^h^i^" length ; this is 

 followed by a black ring (also with black spines) occupying about 

 the second fifth of the length; the rest of the tibiae is pale yello- 

 wish with only the extreme tips of the spines black ; otherwise pale 

 yellowish. The wings are subhyaline, strongly tinged with yellowish, 

 and with yellowish nervures, a little darker towards the costas bot 

 not brown or black." (Kirby.) 



Wipiiei- KntoTnologisclie Zeitung, XXV'III. .Jahrg., Heft II (1. Miirz 1909). 



