136 THE KNTOMOLOGIST. 



man's note on the Keazzino Melitaa in the March number of the 

 Ent. Record, p. 71. Those who have followed my papers on this 

 group will be aware of the grounds on which I pronounced this 

 to be britomartis, Assmann. They still appear to me to be amply 

 sufficient, which I cannot say for the grounds of Dr. Chapman's 

 " correction." I shall, however, take the whole question of the 

 genitalia of the group next, explaining my attitude towards the 

 whole question, and the uses and abuses to which, in my 

 opinion, this method of determination of species may be put, 

 as illustrated by the group at present under discussion. 



(To be continued.) 



SOME NEW LEPIDOPTERA-HETEROCEEA FROM 



FORMOSA. 



By A. E. WiLEMAN, F.E.S. 



Diacrisia magna, sp. n. 



Head and thorax creamy white, the latter spotted and striped with 

 dark brown ; prothorax edged with crimson ; abdomen crimson above, 

 ochreous grey beneath, dorsal spots blackish. Fore wings creamy 

 white with dark brown, almost black. Markings disposed as follows : 

 an almost triangular spot on costa towards the apex ; a longitudinal 

 stripe from the base, of uniform width to the blackish discoidal spot, 

 thence expanded into a large triangular patch enclosing a small tri- 

 angle of the ground colour on the outer margin ; a large patch along 

 the inner marginal area. Hind wings pale yellowish buff, the hairs 

 towards the base crimson tinted ; discoidal and two large spots near 

 the anal angle blackish, between the latter there is a small blackish 

 spot, and two others lie on the outer margin above the middle. 

 Expanse, 74 millim. 



Collection number, 1772. 



Two males from Rantaizan, May, 1909. Taken at light. 



Hah. Formosa. 



Arguda formosce, sp. n. 

 ^ . Fore wings reddish ochreous, with a small dai'k ringed white 

 spot at end of the discal cell ; postmedial line and the veins beyond 

 leaden grey ; the outer margin clouded with dark leaden grey ; beyond 

 the postmedial line (which is almost parallel with the outer margin) 

 there is a dusky, crenulated, transverse line. Hind wings reddish 

 brown, darker and mixed with leaden grey on outer area, paler on the 

 costal area. Under surface reddish brown, paler on the inner margin 

 of each wing ; the markings of the fore wings as above but thicker ; 

 on the hind wings the ante- and postmedial lines are blackish, and 

 the latter is irregular. Expanse, 50 millim. 



Collection number, 1184. 



