30 NEUROPTERA. j 



I 



Sub-imago $ . Similar to the imago, the spots obsolete; I 

 wings unicolorous grey, the costa brown, spotted with : 

 white, but duller than in the imago. The pupa is ! 

 distinguished by its black wing-cases, and swims very ! 

 nimbly. The 2nd— 6th abdominal segments have on ' 

 each side above a pale spot behind a dark dot, and in j 

 the middle of the base is a small yellowish triangle ; j 

 on each side are seven pair of branchial plates, but 

 none on the three last segments ; the seventh branchial { 

 plate is single, the others are double ; caudal filaments ; 

 pale, with the base of the joints annulated with dark 

 to the middle; exactly in the middle is a long joint : 

 quite dark, with three slender pale rings ; then follow 

 some joints which are quite pale, the remainder is 

 dark ; up to the end of the white part they are fringed 

 with double rows of long hairs, which are white on , 

 the white joints, and almost blackish on the darker j 

 joints. i 



Length of the body 3J ; setse SJ lines. 

 This description is made from English and from Prussian 

 specimens, which have been compared with the type ; I 

 reared the insect from the larva (which is still undescribed) , 

 and from the pupa. 



Habitat common near London, end of May. 

 Stephens' C. dipterwn decidedly belongs here ; Eph. 

 apicalis is the male according to a specimen which I had . 

 labelled after comparing it with the type ; but the description 

 says of the caudal filaments they are unicolorous ; according 

 to my notes Ej^h. hehipes (which from the description was ; 

 probably a bleached specimen) should be the female. B. \ 

 cidiciformis also, according to my notes, is only the male of | 

 C. dipterum. Although this species varies considerably in | 



