( 190 ) 



;iii\lio\v, theiv is a narrow areole in all our specinuMis. though in some imlividuals, 

 csiH'cially of the typical suhsppcics, the bar connecting veins 8 and 10 is so weak 

 as to be nearly obliteraterl, so that on superficial examination the areole appears to 

 be absent. The length of the areole is extremely variable; in our Andaman 

 specimens, for example, the length varies from If mm. to o mm. 



Veins 6 and 7 of the forewing are stalked together, which character does not 

 occur again amongst Afjnnaidae ; the length of the stalk is quite inconstant. Veins 

 3 and 4 come from a point, or are also, though shortly, stalked. The upper disco- 

 cellular veinlet is deeply incurved (see Snellen, I.e.), more so than tliat of the 

 hindwings. 



'N'oins (! and 7 of the hindwings are either shortly stalked together or are slightly 

 separated from one another; veins -t and o originate close together, while 3 is 

 removed from 4. 



The costal fold of tlie niiile of typical P. membliaria (Cram.) is, when spread 

 out, covered on the upperside with ratlier small, oval, glandular scales (see llaase. 

 Iris I. p. 108, 1887); and similar scales are situate just before and behind the costal 

 vein. The long hairlike scales underneath the fold, which Hampson (I.e.) describes 

 as a glandular tuft of long hairs, are not .situate upon the lappet, hut stand on a vein- 

 like fold which is homologous to the actual eo.stal margin of the Ar/anaidae without 

 this scent-organ. These "hairs" are broadest at the tip, and are, in fact, elongate 

 scales. In the form of Eiiplocia from Celebes and the Lesser Sunda Islands, which 

 have the fold very narrow, the small glandular scales on the upper surface of the 

 fold, when opened out, are similar to those found in membliaria, but the hairlike 

 scales are much shorter and broader, and are lanceolate, with the tip rounded. 



I do not understand what Haase, I.e., means by stating that " in den iibrigen 

 untersuchten Arten war er [the eo.stal fold] nicht ausgebildet." as all males of 

 Euplocia have a costal fold. 



The breadth of the fold is in tlie Indian and Andaman exainijles, in one of oiu 

 Boniean individuals, and in one from Palawan, 3 mm. ; in another specimen each from 

 Borneo and Palawan the fold has a breadth of 2 mm., while in Java .specimens it is 

 .slightly less than 2 mm. ; in the examples from Pulu Laut (S.E. of Borneo), Celebes, 

 the islands hetween Celebes and Flores, and from Sambawa and Adonara, the fold 

 measures only J mm. 



To Euplocia lib. belong the following insects: mendtliaria, (Cram.) described 

 from India or., renigera (Feld.) from Java, moderata Butl. also from Java, and 

 inconapicua Butl. descrilied from Celebes. 



E. memUiaria (Cram.) is the broad-folded iorni, and occm-s in Pnirma, Siam, 

 Malacca, Andaman Islands, Natuna Islands, Borneo, Palawan, and proliably also 

 on the Xicobar Islands and in Sumatra. 



The males from ]5urma have often a small orange sjiot upon the discocellulars 

 of the forewing, corresponding to the patch in the same place in {\io feniale ; this 

 spot we have not noticed in ruales from other localities. 



I he whitish nervular and internervular lines of the wings, especially tho.se on 

 the hindwings, are in typical mendilinria longer than in incotispictia, but in some 

 of our Celebes, Sambawa. and Djampea specimens they are quite as long as in certain 

 individuals from the western localities. 



The females vary especially in the developineut of the orange colour in the cell 

 of the forewing. In E. membliaria the basal jiatch occupies almost two-thirds of 

 the cell, and is mostly connected along the median nervure with the square, or slightly 



