28 NEUROPTERA. 



Pictet refers here, is a Potamanthus. Probably a sub-imago 

 should be referred here which has the head and thorax yel- 

 lowish, the abdomen brown and the wings ashy grey. 



B. carnea, Curtis, Phil. Mag. 121, 9 a, the description 

 of which is quoted by Stephens {^b^ ]0) may probably 

 belong here. 



8. B. LATERALIS, Curtis, Phil. Mag. 121, 8 a, the descrip- 

 tion of which is repeated by Stephens, 65, 8, 1 cannot 

 make out. According to my notes the male and 

 female of a distinct species are in the Stephensian 

 collection. But since Stephens quotes his 3. phceojm 

 as a synonym, and a specimen in my collection which 

 on comparison with the types I had labelled B. 

 phceopa is a sub-imago of Cloeon, I am unable to 

 give any satisfactory explanation with regard to B. 

 lateralis. 



CLOEON, Leach, Stephens, Curtis. 

 (Cloe, Burmeister.) 



Head small; eyes of the male double, the upper half 

 turban-like; wings four, the posterior very small (in C. 

 dipterum entirely wanting) ; venation very delicate ; trans- 

 verse veins few in immber, generally only two rows in the 

 middle of the anterior wings ; male with powerful, three- 

 jointed anal forceps ; penis broad, deeply cleft ; egg- valve 

 divided ; two long caudal filaments and a scarcely perceptible 

 rudiment of the middle one. 



Larva narrow, rounded ; mandibles slight ; seven pairs of 

 small lateral branchial plates ; caudal filaments fringed. The 

 larvae live as free swimmers. 



