70 MR.- F. i\ L.AIDLAW OX 



Mr, Moulton. The species has been recently discussed by 

 Dr. Ris. 



7. Epophthalmia vittigeea Ramb. 

 ZYGOPTEEA. 



AGRIOI^INJi:. 



Genus Amphicnemis Selys. 



Certainly one of the most characteristic genera of the Malay 

 pi-ovince. It has been recorded only from. Borneo, Sumatra, and 

 the Philippine Islands. It will idtimately, no doubt, be found 

 to occur in the Malay Peninsula. In its recorded area it is 

 probably represented by very many species. 



The genus is notable for several reasons. One of these is 

 the remarkable sculpturing of the hinder lobe of the prothorax 

 found in several species, either in both sexes or in the males 

 alone. 



A second, perhaps more remarkable character, is, that whereas 

 males of most of the species at any i-ate present a very uniform 

 system of colouring of the body, the females, on the other hand, 

 are often more brilliantly coloured than the males, and show, so 

 far as I can judge, a far greater diversity between the species in 

 this respect. 



The extreme delicacy of these creatures, and the somewhat 

 bizarre form of the anal appendages of the males, together with 

 the curious prothoracic armature (closely paralleled in the case of 

 Uisparoneura and some other genera), suggest that the genus is 

 highly specialised and " gerontic " : to be compared, perhaps, with 

 Opisthostoma amongst the land molluscs, and Calamaria amongst 

 the snakes of the same province. No observations are available 

 on the habits or life-history of the species. 



The material I have studied consists of six male specimens 

 belonging to five species, and of five females belonging to four 

 species ; representing in all, probably, six distinct species. 



1. Amphicnemis v/allacei Selys*. (PI. TV. fig. 7.) 

 1 cJ. Baram, 15.10.10 (adult). 



Length of abdomen 32'5 mm. (without appendages). 



,, hind wing ... 18*5 ,, 



This specimen agrees closely with de Selys's description of the 

 type, whilst the anal appendages bear an exact resemblance to 

 those figured by Dr. Ris for a specimen from Sintang. 



[The female is said by Dr. Ris t to have the whole thorax, the 

 femora, and tibiae blood-red, the tarsi yellow, and the spines of the 

 legs dark. The prothorax is without the median spine which 

 occurs in the male sex.] 



* De Selys, Synops. des Flatijcnemis, no. 2, Bull. Acad. Belg. 1863. 

 t Ris, Auu. Soc. Ent. Belg. Iv. 1911, pp. 236-337, figs. 4 & 5. 



