36 imiTISH OUTHOPTERA. 



Pince du male petite, nrquce, ferrugineuse, quelquefois noire an milieu, 

 grossierement ponctuee, avec line dent interne an deux tiers, a partir 

 de la base. Dernier segment dorsal de la femelle comme celui du male ; 

 6 e segment ventral de la femelle demi-circulaire, 11011 echancre, lame 

 anale etroite. visible en dessous a la base interne de la pince ; celle-ci 

 courte, 1111 peu arquce vers son sommet, branches un pen entrecroisees. 

 Long, du $ et de la ? , 8 mill. ; pince du ^ 2 a 2i mill. ; de la $ , If 

 mill. Marseille. (M. A. Yersin, " Note sur quelques orthopteres nou- 

 veaux ou peu connus d'Europe," ' Annales de la Soc. Ent. de France,' 

 28 Dec, 1859, p. 509, PI. 10, figs. 33-35.) 



MALE IMAGO (PI. V, fig. 4*).- -Colour chestnut- 

 brown, head darker, legs paler ; practically hairless. 

 Length 8 mm. ; length of callipers 2-2*5 mm. Antennae 

 (fig. 5, b) of 12-13 segments, paler at the base. Pro- 

 notuni squarish, with straight hind-margin ; lateral 

 margins rather paler. Elytra free. Wings absent. 

 Scent-folds rather distinct, on 3rd and 4th segments of 



FIG. 5. Basal segments of antenna of Labia Leach (a) and Prolabia 



Burr (6). (Much magnified.) 



the abdomen ; anal dorsal segment with a central, 

 posterior depression, and no tubercles. Callipers 

 rather small and somewhat slender, curving gradually 

 inwards, with a tooth on the internal margin about 

 one-third of the length of the callipers from the apex, 

 and a second indistinct one at the base (fig. 2, rjo. 8). 



FEMALE IMAGO.- -Much as the male. Length 8 mm. ; 

 length of callipers 1'75 mm. Callipers short, straight 

 except near the tip, where they curve inwards a little, 

 and tend to cross. 



NYMPH.- -In the nymph the callipers are slender, 

 and curved somewhat as in the male. At the base of 

 the femora there is a broad dark band. In some cases 

 at any rate there is a broad pale hind-margin to the 

 pronotum. 



VARIATION AND ABERRATION.- -Colouring varies in 



