462 Mr. W. F. Kirby on the 



Icon. K. Anim., Ins. p. 384, pi. Ixi. fi--.! (1829-1844) ; Klup:, Abhandl. 

 Akad. Berl. 16:56, p. 93. n. 4 ; Riiub. Ins. N.?vr. p. 336 (1842). 

 Kemafoptera e.ifeiisa, Westwood, Proc. Zool. Soc. Loud. 1841, p. 11. 

 u. 4; Ann. & Ma^^ Nat. Hist. viii. p. 307. u. 4 (1842). 



Ilab. Baghdad. 



Genus III. Chasmoptera, gen. nov. 



Antenna? very thick ; beak prominent ; hind wings only one 

 and a halt times as long as the tore wings ; tore wings hyaline, 

 except a slightly marked pterostigma ; hind wings wholly 

 dark except at the extremity and on the median line in the 

 middle of the principal lobe, which expands very broadly on 

 each side, occupying the third quarter of the wing; at the 

 base it expands gradually, and at the extremity it is trun- 

 cated, the angles, however, being rounded off; from the 

 central line a number of bitid nervures diverge on each side. 

 This is followed by a second smaller lobe on each side, and a 

 broad terminal projection, white on the apical half. 



■^21. ChasniojJtera Huttii. 



Nemoptera Huttii, Westwood, Proc. Ent. Soc. Loud. v. p. 27, pi. viii. 

 iig. 1 (1847) ; Ilagen, Proc. Boston Soc. Nat. Hist, xxiii. p. 265. 

 u. 12 (1888j. 



. Hab. Australia (Perth, Swan Kiver). 



Genus IV. Savigniella, n. n. 



\\Brachysto7na, Rambur (uec Meigen), Ins. Nevr. p. 337 (1842). 



Mouth not produced into a beak ; hind wings long, linear, 

 scarcely enlarged towards the extremity. 



^2, Savigniella costata. 



, Savigny, Descr. Egypte, Neuv. pi. ii. fig. 14 (details). 



WNtmoptera halterata, Oiiv. (uec Forsk.) Eiicycl. Meth. viii. p. 178 



(1811). 

 Nemoptci-a costata, King, Abhandl. Akad, Berl. 1836, p. 04. u. 7. 

 Nemoptera Olivieri, Rambur, lus. Nevr. p. 337 (1842). 

 NeinatojAera Olivieri, AN'estwood, Proc. Zool. Soc. Loud. 1841, p. 13. 



u. 14 ; Ann. & Mag. Nat. Hist. viii. p. 379. u. 14 (1842). 



Hah. Alexandria. 



Hagen considers hJavigny's fig. 13, usually referred to this 

 species, to represent Halter Ledereri, Selys. 



