7 o D. S. FLETCHER 



Aedeagus with a finely scobinate ridge on ventral surface in apical fourth. Vesica with a 

 stout, serrate-edged, tapered cornutus. 

 O. unknown. 



Measurements. Fore wing: $ 14 mm. Antennal pectinations: $ 12 x diameter of shaft. 



Closely similar to scriptifasciata and to baliata in size, colour and pattern; struc- 

 turally closely similar to excisa from Ceylon, India and Burma, which it appears to 

 represent in Borneo and Sumatra. 



Distinguished from excisa in size and wing pattern (PI. 100, fig. 894) ; in the male 

 genitalia the serrate apical fourth of the ventral margin and the tapered, scobinate 

 apical area of the valve and the form of the ventral plate of the gnathus are diagnostic. 



Distribution. Borneo, Sumatra. 



Holotype $, Borneo (Dutch West Borneo): Kalimantan, 85 miles above Pen- 

 tianak {Simons & Meligan), Geometridae genitalia slide no. 7133, in BMNH. 



Paratype. Sumatra: Deli, 1 $ (RNH, Leiden). 



The EOGENARIA-Grovp 



All the species in the group are distributed in the Indian, Malayan, Celebes and 

 Philippine subregions of the Oriental region. They are conspicuous externally 

 in having the hyaline areas of the wings bright green; the fore wing measures 

 10-15 mm. The group is characterized in the male genitalia by the presence of a 

 pair of spine-like processes on the dorsal surface of the uncus; the fulcrum is slender 

 and weakly sclerotized. In the female genitalia the ductus bursae is well developed, 

 tubular and sclerotized, equal in length to or longer than the corpus bursae. 



Key to Species and Subspecies 



1 Valves and projections from uncus asymmetrical . . . ucata (p. 73) 



- Valves and projections from uncus symmetrical ..... 2 



2 (1) Apical fifth of valve sclerotized, finely tapered and curved through 90 degrees 



towards uncus. Fulcrum extending beyond tip of aedeagus, apex dilate 



and bilobate ......... nesiotica (p. 73) 



- Valve tapered apicad, then broadened slightly to narrow, serrate-edged, 



apical margin (Text-fig. 91). Fulcrum slender and weakly sclerotized, 



not extending beyond tip of aedeagus ....... 3 



3 (2) Dentate subterminal fascia not interrupted by penetration of green hyaline 



area between veins M 3 and Cn lb . Distribution: Celebes, Sumatra, Java, 

 Borneo, Malaya ...... .eogenaria eogenaria (p. 71) 



- Dentate subterminal fascia interrupted by penetration of green hyaline area 



between veins M 3 and Cu lb . Distribution: India, Burma. 



eogenaria cosmiaria (p. 72) 



Zamarada eogenaria (Snellen) 



(Text-figs 91-94; PI. 2i, figs 533, 534; PI. 101, figs 900-902) 

 Phorodesma eogenaria Snellen, 1881 : 78, pi. 10, fig. 1. 



