British Species of the Genus Stenophylax. 239 



and almost cylindrical, the extreme apex thickened, black and 

 shining ; upper pair of sheaths triangular, long, widely divergent. 



Long. Corp. 5 — 6 lin. ; exp. alar. 14 — 16 lin. 



Apparently not very common; appears in summer and has been 

 found near London, in the Isle of Wight, Devonshire, Lake 

 district, &c. 



In the " Entomologist's Annual" for 1859, p. 94, 36, this 

 species is said to be synonymous with areatus, Kolenati, Brauer,* 

 the inferior appendages of which are produced into a sharp point, 

 but in Curtis's types these appendages are decidedly thickened at 

 the apex, similar to the last species, but it may be readily 

 separated therefrom by its darker colour, and more rounded 

 wings. Stephens's series of stellatus (which agree well with 

 Curtis's types) was labelled *^ pantheriniis, Kolen.," by Dr. Hagen. 



S, radiatus, Rambur. (PI. IX. fig. 8.) 



l/imnepMla radiata, Rambur, Hist. Nat. Nevrop. p. 479, 12. 



Antennae, head and thorax brown, the latter darker on the 

 sides, collar with a tuft of brown hairs ; abdomen above fuscous, 

 beneath brownish, annulated with dark red ; legs pale brown, with 

 black spines ; anterior wings pale mouse-grey, with a faint reddish 

 tinge, and conspicuously pale greyish-yellow markings — viz. 

 long streaks in the cells before the anastomosis, a bilobed spot, a 

 spot at the base of the third and fifth apical cells, and a long 

 streak in each of the apical cells, forming a curved series (in the 

 female these markings are not so conspicuous) ; veins ochreous ; 

 posterior wings sub-hyaline, tinged with ochreous towards the 

 apex . 



Upper margin of last abdominal segment cut off straight; 

 appendices superiores concealed in the last segment, only the 

 points visible from above, oblong, with a projection on the inner 

 margin, covered with black setae ; appendices inferiores long, com- 

 pressed, turned inwards and rather curved at the tips, which are 

 black, but not visibly thickened ; upper pair of sheaths short, 

 broad and triangular, black ; lower pair concealed in the tuft of 

 hair between the appendices inferiores. 



Long. Corp. 5 — 7 lin. ; exp. alar. 14 — 18 lin. 



I captured six specimens on the banks of the Daw at Dawlish, 

 Devonshire, in the middle of September. 



I have little doubt, from Rambur's description of X. radiata, 

 that my insects are identical, though this and the two last species 



* I have since seen European examples of the true areatus, and have no hesi- 

 tation in saying that it is undoubtedly distinct from the present species. 



