208 BRITISH. ORTHOPTERA. 



Habitat in pi atis ad fossas et aquas stagnantes, primo vere. 

 DESCR. Statura prsecedentis [i.e. bipunctatus] sed angustior et 



Thorax scutellaris ipso corpore fere duplo longior. Antenna- 



lreves. 



(C. Linnseus, ' Fn. Suec.' p. 236, 1761.) 



MALE IMAGO.- -General colour very dark brown (but 

 it 7 ; varies a great deal), marked and mottled at times 

 with lighter or darker tints. Build slender. Length 



O i/ 



some 9-1 2 mm. Vertex produced in an obtuse angle ; 

 fi/es closer than in T. lipunctatus; pronotum flatter; 

 very attenuated posteriorly, and reaching much beyond 

 the apex of the hind femora ; median carina not much 

 raised, especially behind. The pronotum sometimes 

 has the two black spots from which the next species is 

 named. Elytra reduced to tiny pads; but wings ample, 

 as long as the pronotal process. The arrangement 

 of the nervures in the wing is, however, abnormal. 

 In front of the dividing nervure the wing is much 

 chitinised and compressed, so that the nervures are 

 brought together, the subcosta, radius, and medius 

 being fused in the middle, and the cubitus greatly 

 suppressed : it is not easy to distinguish them. 



FEMALE IMAGO (Fig. 24).- -In this sex there is more 

 variation in colour than in the male. The female, too, 

 is appreciably larger. Voices of the ovipositor are 

 similar to those of T. bipunctatus. 



NYMPH.- -In addition to the feebler texture, the 

 pronotal extension is shorter, and there is but one 

 sinus to the hind border of the side flap of the 

 pronotum. 



VARIATION.- -T. subulatus varies greatly both in size 

 and in colouring, especially in the female ; the male is 

 dark and more constant in the New Forest where I 

 have had most experience of the species. There is a 

 well-marked form of the female with a circular whitish 

 patch on the broad fore part of the pronotum, the rest 

 of the upper surface being mottled with dark and 

 yellowish brown. Some specimens have a lighter 

 stripe down the pronotum. Azam mentions a var. 



