LYCAINIDE. PORITIA. 37 
‘Genus 100.—Poritia, Moore, (PLATE XXVI). 
Poritia, Moore, Proc. Zool. Soc. Lond., 1865, p. 775; id., Hewitson, Ill. Diurn. Lep., p. 213 (1878) ; id., 
Distant, Rhop. Malay., p.197 (1884); Simziskina, Distant, Entomologist, vol. xix, p, 12 (1886); idem, id., Rhop. 
Malay., p. 450 (1886) ; Massaga, Doherty, Journ. A. S. B., vol. lviii, pt. 2, p. (1889). 
** WINGS, short, very broad, FOREWING, with the costa slightly concave in the middle ; 
outer margin straight, slightly oblique [convex in the female], ixner margin nearly as long as the 
costa, inner angle acute ; subcostal nervure with its first branch arising at one-third from its base 
and extending to the costa beyond one-third of its length, third remote, fourth arising from the 
second at one-fourth of the lergth of the first. HINDWING, very convex near the base, concave 
in the middle ; apex, exterior margin, and anal angle rounded, scalloped. yes naked ; palpi 
long, third joint slender, one-third the length of the second, finely pointed at the tip ; anéenne, 
slender at the base, club moderate ; /egs short, stout, femora slightly pilose beneath ; ¢horax 
stout ; aédomen moderate, extending to two-thirds of the length of the hindwing.” 
(AZoore, 1. c.) 
‘* WINGS, short and broad. FOREWING, with the costal margin slightly concave about the 
middle, outer margin oblique, nearly straight or slightly rounded, izzer margin slightly concave 
at the base, and then sinuated to outer angle (prominently in the male and obscurely in the 
female) ; first subcostal nervule emitted at about one-third from the end of the cell, seccud near 
end of cell, ¢hérd emitted a short distance from apex of second.* _HINDWING, convex at base, 
and suddenly oblique to apex [in the male] ; fostertor margin rounded and convex ; provided in 
the male with a long tuft of hairs near the base of the cell. yes naked ; fa/fi long, the apical 
joint slender and pointed at apex ; /egs stout, femora pilose beneath; amtenne gradually in- 
creasing in thickness from the base, and terminating in a somewhat long and moderately 
thickened club ; ¢hovax robust.” 
‘©The species of Porttia exhibit a brilliancy of colour and markings which forcibly 
remind a lepidopterist of the glories of the Neotropical Erycinide [ = Nemeobiine.] The 
genus was founded by Mr. Moore for the reception of a N.-E. Indian species, but Povritia 
has since been shown, and principally by Mr. Hewitson, to have its head-quarters and to 
reach its maximum of species in the Indo-Malayan region. Some thirteen species are 
described, and of these no less than eight are found in [the Malay Peninsula] fauna.” 
( Distant, 1. c.) 
In the type species of this genus, P. hewitson?, Moore, the costa of the forewing is 
slightly emarginate near the middle; the outer margin is slightly convex ; the first subcostal 
nervule arises just before the second, and almost immediately runs into the costal nervure, 
with which it entirely anastomoses and from which it does not subsequently become free, the 
amalgamated vein being long, ending on the costa considerably beyond the apex of the cell ; the 
second arises about one-third before the apex of the discoidal cell and reaches the outer margin 
exactly opposite the origin of the third subcostal ; this latter being very short, and arising about 
two-thirds beyond the apex of the cell. There are, therefore, three distinct subcostal nervules to 
the forewing in the type species, exclusive of the terminal portion of the subcostal nervure, 
which Mr, Distant counts as an additional subcostal nervule. Neither of the three authorst 
who have examined the ‘neuration of this genus seem to have discovered the first subcostal 
nervule, which owing to its shortness and complete anastomosis with the costal nervure, 
except in a short free basal portion, might be easily overlooked. Upper disco-cellular nervule 
short, one-third the length of the lower disco-cellular, straight ; second median nervule given off 
some distance before the apex of the cell. In the male, in the forewing, on the underside, there 
is a large somewhat quadrate shining patch of differently-formed and large scales from the 
* “Mr. Moore describes the subcostal nervules as four in number; Mr. gee ae Cer oiiae nae 
and says there are but two [one of Mr. Moore's subcostal nervules being the upper discoldal nery = 
according to my view there are three.” (D*stanz, 1. c.) 
‘Rhopalocera Malayana,’ p. 450, has the following 
+ I find that Mr. Distant in the Appendix to his pate 
. > 
: i i i f ding to my view there are three” s 
note :—‘‘In my diagnosis of this genus, I stated that, * accor ‘ hre ahs 
nervules to the forewing. Mr. Moorejhas since pointed _out,to me that there are four, the first being very 
short and minute.” 
