646 MR. J. H. LEECH ON THE [DeC. 18, 



H. excrescens is closely allied to the Indian H, pauperatus of 

 Walker ; some of the Japanese specimens of the former have the 

 " small black-edged white spots " and other characters of the latter. 



Tokohama (Jonas and Pryer) ; Yesso {Fryer) ; Hakodate (Pryer). 



314. Phassus signifer. 



Phassus signifer, Walk. Cat. Lep. Het. \i\. p. 1568 (1856) ; 

 Butl. 111. Typ. Lep. Het. pt. vi. p. 30, pi. cix. fig. 2 (1886). 



Phassus sinetisis, Moore, Ann. & Mag. Nat. Hist. (4) xx. p. 94 



(1877). 



Phassus herzi, Fixsen, Rom. Mem. sur Lep. iii, p. 335, pi. xv. 

 fig. 3. 



A most variable species both as regards colour and ornamentation 

 as well as size. In my series from Japan and Corea (which com- 

 prises three examples from Satsuma, taken in May, three from 

 Gensan, June, one Shimonoseki, July, and six coll. Pryer) there are 

 specimens only 46 millim. in expanse, whilst others attain a wing 

 expansion of 110 millim. Butler gives 150 millim. as the measurement 

 of Walker's type of P. signifer from Silhet. The oblique silver 

 dash at end of cell is present in three examples ; but this character 

 is subject to considerable modification, and although never entirely 

 absent is in two examples reduced almost to vanishing point. In 

 other specimens this mark is of large size, and there is another 

 round or linear spot just beyond it. The silver spot nearer the 

 base of primaries is also inconstant in form, and sometimes very 

 indistinct. Occasionally there are other silver spots on the disk and 

 at apex of primaries. 



Pryer says that at Tokohama the species emerges in the summer, 

 and is rather scarce. 



Yokohama, Oiwake (Pryer) ; Satsuma, Shimonoseki, Gensan 

 (Leech) ; Corea (Herz) ; Silhet. 



315. Zeuzera pyrina. 

 Phalcena-Noctua pyrina, Linn. F. S. p. 306. 

 Phalcena-Noctua cesculi, Linn. Syst. Nat. xii. p. 833. 

 Bombyx cesculi, Hiibn. Bomb. pi. 47 . fig. 202. 



I got a specimen at Gensan in July, and there were four examples 

 (3d', 1 $ ) in Pryer' s collection, one of which was taken at Fujisan 

 by Mr. Maries. 



Gensan (Leech) ; Yokokama (Pryer) ; Fujisan (Maries) . 



316. COSSUS VICARIUS. 



Cossus vicarius. Walk. Cat. Lep. Het. Suppl. p. 584 (1865). 



I took a male example at Gensan in July, and a female bred from 

 a larva found in the same month at Fushiki. There were also three 

 specimens in Pryer's collection, which must have been obtained after 

 the publication of his Catalogue, as he says, p. 40 : — " I have seen 

 the larva of a Cossus here, but have not taken the perfect insect ; 

 the larvae were small, but exactly like 0. ligniperda." My observa- 

 tions of the larva coincide exactly with Pryer's remarks thereon. 



