1381.] 195 



Imago, t. t. s. Oculi strongly ascalaphoid, the upper part obscurely tinged with 

 liver-colour ; rest of head, and the thorax, black, polished. Legs blackish-piceous, 

 the fore tarsi scarcely paler ; but the hinder tibiae and tarsi distinctly reddish- 

 piceous, the latter being rather the darker. Wings vitreous, with a somewhat 

 talcose gloss, the fore-wing tinged with blackish in the marginal and sub-marginal 

 areas, the base of the costa somewhat testaceous, and the rest of the neuration 

 piceous ; cross-veinlets, in the coloured areas, numerous, viz. : in marginal area, 

 six before, and about sixteen irregularly anastomising beyond, the nodal point ; in 

 sub-marginal area, three before, and nine beyond, that point. Abdomen blackish- 

 piceous, with pale rufescent joinings ; beneath, the last segment but one is distinctly, 

 and a few of the next preceding it are faintly, tinged with rufescent posteriorly. 

 Forceps within and towards the tips rufescent. Penis and setae blackish-piceous. 

 Long, corp., S , 10 ; al., $ , 10 ; set., $ im., 12, sub-im., 9 and 12 mm. 



Sab. : in the stream near Aldea de Neuves, Alemtejo, and near 

 Sao Marcos da Serra. 



C. — Anterior margin of the hind-wing deeply sinuated before the apex 

 (compare Trans. Ent. Soc. London, 1871, pi. t, 2 i). 



Theaulus, n. g. 

 Three long, sub-equal caudal setae (mutilated). Fore tibia of £ 

 about one and ten-thirteenths as long as the femur, the tarsus about 

 the same length as this last ; hind leg about one and one-twelfth as 

 long as the intermediate leg ; hind tarsus almost half as long as the 

 hind tibia ; ungues of hinder tarsi dissimilar in form and size. 

 Proximal joint of £ forceps' limb by far the longest. Nymph latent, 

 with seven pairs of double tracheal branchiae ; the divisions of each 

 of them alike in form, but those of the 1st pair filiform, simple, and 

 minutely hairy, whilst the divisions of each of the others are foliaceous, 

 oblong-ovate, fringed with long, simple, filiform processes. Type, 

 ThrauJus bellus, n. sp. Distrib., Portugal (and, perhaps, W. Indies). 



Thraulus bellus, n. sp. 

 Sub-imago. Wings pale blackish. 



Imago (living). £ . Oculi fuliginose. Body blackish-piceous ; the thorax deep 

 black above, glossy, and with the sutures pale. Fore tarsi blackish, the hinder tibiae 

 and tarsi paler. Long, corp., £ , 8 ; $ , 7 mm. 



Rab. : in the stream below Cintra. 



Habeophlebia, n. g. 

 Three long, sub-equal caudal setae, about thrice as long as the 

 body in both sexes. Fore tibia of <$ about one and one-third as long 

 as the femur, the tarsus about one and a half as long as the same ; 

 hind leg scarcely longer than the intermediate leg ; hind tarsus about 

 one-fourth as long as the tibia ; ungues of hinder tarsi alike in form. 



