582 NEPINA. 



much shorter ; posterior margin very oblique ; nerves very fine ; 

 Membrane distinct, very short, posteriorly rounded, filled with very 

 fine reticulated nerves. Sternum ; Prosternum much shorter than 

 the pronotum, with a sharp, thin middle keel, which ceases before 

 the posterior margin, on each side of it a longitudinal channel for 

 the reception of the coxae ; Mesosternum trapeziform, convex ; Meta- 

 sternum short, depressed, between the 2nd and 3rd pairs of coxae 

 raised in an oval lobe, which is longitudinally depressed in the 

 centre, and posteriorly is produced into a short keel between the 

 posterior coxa). Legs very long, slender ; 1st pair stouter than the 

 others ; COX<B cylindrical, about |-rds the length of the tibiae ; fulcra 

 long, curved upwards ; thighs contracted at the base, slightly dilated 

 as far as the anterior groove, then linear and curved outwards to 

 the end, with a groove beneath, extending from the apex backwards 

 for rather more than ird the length of the thigh, very narrow, 

 minutely serrated on the edges, terminated posteriorly by a large, 

 projecting, triangular spine ; tibia thin, curved, slightly thinner to 

 the apex, in repose folded back into the groove on the thighs ; tarsi 

 long, curved, obtuse, without claws ; 2nd and 3rd pairs of legs longer 

 than the 1st, subequal ; coxes very short, stout ; thighs cylindrical ; 

 tibiae cylindrical, less than the thighs ; tarsi very long, slender ; 

 claws thin, divergent. 



Abdomen flat above, trigonal beneath, posterior margin of all the 

 segments straight ; Connexivum (except on the last 2 segments) 

 broad, projecting laterally, reflexed ; Genital segments posteriorly, 

 not pointed. Spiracular filaments very long. 



Species 1. RANATRA LINEARIS. 



NEPA LINEAKIS, Lin. F. S. 908 (1761) ; S. N. 714, 7 (1767) ; De G. Mm. 

 iii, 369, 2, pi. 19, figs. 1, 2 (1773). 



HEPA Geoffr. Ins. i, 480, 1, pi. 10, fig. 1 (1764). 



KANATRA Tab. E. S. iv, 64, 2 (1794) ; S. E. 109, 2 (1803) ; Pant. 

 F. G. 95, 15 ; Lat. Hist. Nat. xii, 282, pi. 96, fig. 5 

 (1804) ; Gen. iii, 149, 1 (1807) ; Lep. $ Sero. Enc. x, 

 267, 1, pi. 22, figs. 110, & pi. 374, figs. 16-19 

 (1825); Fall. Hem. Suec. 169, 1 (1829); Curt. B, E. 

 vi, p. & pi. 281 (1829) ; HaM. Wanz. i, 30, t. 42, 

 fig. 131 (1834); Burm. Handb. ii, 199, 1 (1835); 

 H. Self. Norn. Ent. i, 63 (1835); Blanch. Hist. Nat. 

 iii, 90, pi. 1, fig. 3 (1841) ; Am. et Serv. Hem. 443, 2 

 (1843); Flor, Rliyn. Liv. i, 765, 1 (1860); Fieb, 

 Europ. Hem. 102 (1861). 



