]46 tJ"iy' 



The moths, eleven in number, appeared July 13th to August 27th, 

 accompanied bj many minute parasitic flies awaiting identification. 

 My only observations relating to the time of emergence were that one 

 imago was found with its wings dry, and another with them hardly 

 dry, at 7*5 a.m., neither having been out at 11 p.m. on the previous 

 night. Both sexes show much variation in size, and a certain amount 

 in colour, for although the pale ground-colour is remarkably constant 

 throughout the fifty specimens, from various English localities, before 

 me, some of them are much more heavily shaded and streaked with 

 deep fuscous and black than others. 



Norden, Corfe Castle: 

 January 30M, 1906. 



NOTES ON CERTAIN PAL^ARCTIC SPECIES OP THE GENUS 



SEMEROBIUS : 



THE MADEIRA-CANARIAN SPECIES ALLIED TO H. HUMULI, 



AND OTHER SPECIES FROM THE SAME ISLANDS. 



BY KENNETH J. MORTON, F.E.S. 



Shortly before his death, Mr. McLachlan had in view the publica- 

 tion of a paper on that species of Hemerohiiis which occurs in Madeira 

 and the Canary Islands, sometimes called H. humuli^ but which has 

 long been known to possess at least four sectors instead of the 

 normal number of three found in H. liumuU proper. Thanks to the 

 Eev. Mr. Eaton, further material, including the ^ , had been put into 

 Mr. McLachlan's hands, and the latter had arrived at the conclusion 

 that the insect was quite distinct as a species from H. Tiumuli. At 

 his request I prepared figures of the appendages, which quite 

 supported Mr. McLachlan's views on the subject. These figures, 

 unfortunately, are not now available, but Mr. Eaton, who again col- 

 lected in Teneriffe and Madeira in the spring of 1904, has kindly 

 presented to me a series of the insect in good condition, thus enabling 

 me to describe the species. Before doing so, it may be desirable to 

 allude briefly to the previous references to the insect. 



The species was, I presume, first taken by Wollaston, and is 

 noticed by Hagen in Ent. Mo. Mag., vol. ii, p. 60, 1865. Hagen at 

 first was uncertain whether the specimen would not form a distinct 

 species, but he failed to find any difference, beyond the greater num- 

 ber of sectors, separating it from H. liumuU. "The colours, facies 

 and markings," he says, "are absolutely identical." 



