68 d. s. fletcher 



Material examined. 



Zamarada fugax Warren, holotype $, Tanimbar Is: Larat (H. Kilhn), Geometridae 

 genitalia slide no. 6402, in BMNH. 



Zamarada symmetra sp. n. 



(Text-figs 85, 86; PL 20, figs 529, 530; PI. 100, figs 895, 896) 

 [Zamarada translucida Moore sensu Hampson, 1895 : 198 (part). Misidentification.] 



(J genitalia (Text-figs 85, 86). Differ from baliata in the usually more finely tapered apex of 

 the valve; in the dorsal process of the valve, which is without dilation in the basal third and 

 in the larger cornutus, which is smooth-edged and as long as the width of the aedeagus. 



$ genitalia (PI. 20, figs 529, 530). Differ from baliata in the form of the sterigma, the longer, 

 medial process from the lamella postvaginalis being equal in length to the two serrate, lateral 

 processes from the lamella antevaginalis. 



Measurements. Fore wing: g 13-15 mm; § 15 mm. Antennal pectinations: $ 13 X, 

 $ 6 X diameter of shaft. 



The type-form, consisting of a series of 5 males and 3 females, appears to be 

 identical externally with baliata (PL 100, fig. 892). The remainder of the material 

 examined, excluded from the type-series, consists of 18 males; these are structurally 

 identical with the type, but differ externally in the browner, less grey colour of the 

 patterned terminal third of each wing, in the less intensely marked subterminal 

 fascia, in the duller, less yellow hyaline area and its deeper penetration of the 

 terminal third, almost to the cilia. The data are brief; the only specimen of the 

 type-series to bear a date is labelled June; of the 6 males that are similar in size to 

 the type-series, but differ as described above, three are labelled November (PL 100, 

 fig. 896); of the remaining 12 males, which are smaller and measure 13-5-14-0 mm 

 in fore wing length and are reminiscent of fugax in wing pattern, three are labelled 

 February-April (PL 100, fig. 895). These examples may reflect seasonal changes 

 from the warm, wet south-west monsoon period [early June to October] to the 

 cooler drier conditions of late October to May. 



Distribution. N.E. India. 



Holotype <$, India: Khasia Hills, Geometridae genitalia slide no. 6395, in BMNH. 



Paratypes. India: Khasia Hills, 2 <J, 1 $ (1 $ labelled vi. 1895) (BMNH), 1 g, 

 1 $ (UM, Oxford); Naga Hills {Doherty), 1 g (BMNH). 



Other material. 



India: Cherrapunji, xi. 1903, 3 $; Shillong, 1 ^; Khasia Hills, 13 <$ (1 <J labelled 

 ii. 1895), 1 <J, iii. 1895, 1 S, iv. 1895 (BMNH), 1 <J (UM, Oxford). 



Zamarada excisa Hampson sp. rev. 

 (Text-figs 87, 88; PL 20, figs 531, 532; PL 100, figs. 897, 898) 



Zamarada excisa Hampson, 1891 : no. Holotype $, India (BMNH) [examined]. 

 Zamarada excisa Hampson, Hampson, 1893 : 35; 1895 : 198. 



