the British Neuroptera-Flanipennia. 167 



in the female there is a short ovipositor, which (after 

 death) is directed vipwards and applied against the 

 truncated terminal segment. 



Legs short, slender; the tibiae cylindrical; ungues 

 simple, cm'ved ; 'pulviUi small. 



Wings (PL IX. fig. 3) ovate, obtuse; costal arc-a naxvoy^ ; 

 costal veinlets simple, those in the pterostigmatical region 

 more numerous and strongly oblique ; suh-costa and 

 radius becoming confluent at the apex ; suh-costal area 

 rather broad, without a transverse nervvile ; only one 

 sector, which starts from the base of the radius, and runs 

 nearly parallel therewith, emitting about three branches 

 to the apex, which are there twice forked ; transverse 

 veinlets of the disk very few in number. In the posterior 

 wings the sector is more distant from the radivis. 



Larva aquatic, living in the interior of the fresh-water 

 sponge, and, doubtless, in other analogous positions. 



Our three species are thus tabulated : — 



A. Wings unicolorous, with no trace of spots. 



a. Antennae wholly dark. . . . 8. fuscata. 



b. Antennas with pale tips. . 8. terminalis. 



B. Anterior wings with an appearance of darker 



spots 8. Dalii. 



1. SiSYRA FUSCATA, Fabricius. 



Hemerohius fuscatus, Fab. Ent. Syst. ii. 84 (1793) ; 

 Steph. 111. yi. 114, pi. xxx. fig. 10 ; 8 isyra fuscata, Burm. 

 Handb. ii. 976 ; Eamb. Nevrop. 416 ; Wesm. Bull. Acad. 

 Brux. 1840, p. 213 ; Hag. Stett. Zeit. 1858, p. 131 ; 1859, 

 p. 412 ; Ent. Ann. 1858, p. 25 ; Brauer, Neurop. Aust. 

 55. Hemerohius confinis, Steph. 111. vi. 144 (1836). H. 

 nitidulus, Steph. I. c. (not of Fab.) . 8isyra nigripennis, 

 Wesm. Bull. Acad. Brux. 1840, p. 412. Hemerohius 

 fumatus, Mots. Etud. i. 20 (1853) . 



Larva ; — Branchiotoma spongillce, Westw. Tr. Ent. Soc. 

 iii. 105, id. Introd. ii. 586 ; Hogg^ Tr. Linn. Soc. xviii. 

 363 ; Hal. Proc. Ent. Soc. 1848, p. xxxi. 



Blackish fuscous, somewhat shining, sparingly clothed 

 with yellowish hairs ; antennae wholly black, 



Ijegs pale testaceous ; tarsi darker, pale at the tips of 

 the joints. 



