28 (27) 



29 (26) 



31 (30) 



32 (25) 



33 (24) 



34 (23) 



35 (36) 



36 (35) 



ACRIDA. gy 



27 (28) Upper and lower valves of ovipositor 



furnished with a tooth Stenobothrus, Fischer 



Valves without teeth. i-p j.jq' 



Mediastinal area rapidly narrowing-, 



not generally extended beyond 



the middle of the tegmen. 

 30 (31) Lateral carina of pronotuiu angu- Tp ^27 



^^ted Staurodkrus, Bol 



Lateral carinc-e parallel Ohorthippus, Fieb 



Pronotum not constricted; lateral rp"l28 



carin;B entirely dorsal Aulacobothrus, BoL ' 



V alves of ovipositor covered by the fp ] 93 



supra-anal lamina ; Dociostaurus, Fieb ~" 



Intercalated vein present. r„ i\q 



Intercalated vein in the middle of 



cell or nearer the radial vein .... ^^olopus, Fieb. p. 121 

 Intercalated vein nearer the ulnar ' •' f • -^ • 



than the radial Mecostethus, Fieb 



[p. 112. 



Genus ACRIDA. 

 Gryllus Acrida, Linnaeus, Syst. Nat, (ed. x) i, 1758 p 427 

 Acrida^^t^l, Kecens. Orth.'i, 1873, pp. 88, 95; Burr,' Trans. Ent 



boc. Lond. 1902, pp. 149, 155. 

 Truxalis, pt., Fabricius, Syst. Ent. 1775, p. 279 ; Serville Ins Orth 



1839, p. 578. 

 Tryxalh, Brulle, Hist. Nat. Ins. ix, 1835, p. 216 ; Bolivar, Feuille 



Jeunes Nat. xxiii, 1893, p. 101. 



Type, Acrida turrita, L. 

 Range. Old World. 



Head very long, sloping upwards, fastigiiim oF the vertex 



extended considerably in front of 

 the eyes, broader than the space 

 between them, and roundly' trun- 

 cate at the extremity; beneath 

 the extremity there is a double 

 carina, traversing the face to the 

 end of the clypeus, and enclosing 

 the median ocellus; below the 

 eyes, and | of the length from 

 the tip of the fastigium are 

 the antennce, which are short, 

 broad, depressed, and tapering;' 

 behind each antenna runs °a 

 lateral carina below the eye, and 

 there are two more behind 'each 

 eye, besides a slight median 

 carina; the eyes long, oval; the 

 . • , 1 • P . „ foveolae of the vertex small, 



triangular, and inferior. Pronotum tricarinate above, and with 

 obscure carina on the sides ; lateral carinas straight, at least on 

 the front area, the upper carina of the lateral lobes parallel to 



H 



A 



B. 



Fig. 79. — Side view of head of 

 (A) Acrida, (B) Stauroderus. 



