250 
THE BUTTERFLIES OF BORNEO. 
Genus 25. Ergolis, Boisd. 
a. Fore wing with small white preapical spot 
109. ariadne. 
a 1 . Fore wing without white preapical spot. 
b. Under side of fore wing in male with one 
androconial streak . . . .110. specularia. 
b 1 . Under side of fore wing in male with andro¬ 
conial streaks on all veins . . . 111. isceus. 
Genus 26. Laringa, Moore. 
Male uniform ultramarine-blue above; female grey 
brown, with paler median band in fore wing 
interrupted beyond cell .... 112. castelnaui. 
Genus 27. Cupha, Bilb. 
a. Yellow subapical band of fore wing angled at 
apex of cell ...... 113. lotis. 
a 1 . Yellow subapical band of fore wing broader, 
straighter, and not angled at apex of cell . 114. cacina .* 
Genus 28. Atella, Doubld. 
Ochreous brown above with delicate fuscous fritillary- 
like markings. Exp. al. 40-46 mm. . . 115. alcippoides . 
Genus 29. Issoria, Hiibn. 
Bich ochreous brown above; fore wing with blackish 
markings on costa and at apex. Hind wing 
usually dusted with black above, pale grey-green 
below.. . 116. macro - 
malayana. 
Genus 30. Cynthia, Fab. 
Male orange-brown above, with dark costal and 
marginal markings on fore wing, two ocelli on 
hind wing. Female: basal half grey-green, suc¬ 
ceeded by white median band, and marginal 
border of grey fuscous in fore wing, ochreous in 
hind wing ...... 117. erotella. f 
* A dry-season form from Mantanani is called pseudarias Fruhst. It may 
be distinguished from typical cacina by the paler colour above, and the 
transverse bands of the fore wings being distally whitish. 
f Fruhstorfer recognizes a tableland form of female as dejakorum with 
reduced white discal band, and a mountain form from Kinabalu as montana , 
characterized by darker green base of wing and richly striped under side. Both 
forms and intermediates occur in Sarawak, apparently regardless of altitude 
or season. The males vary in size from 68-88 mm. ; a Kuching male taken 
in March measures 68 mm., another taken in February 85 mm. Similarly, 
of two females from the same district, one taken in April measures 84 mm., 
the other 101 mm. The interruption of band beyond cell is variable, 
perhaps most pronounced in two females from Mts. Matang and Kinabalu, 
