OF INSULINDE, 27 
with spaces of a nearly white longitudinal nervature. Ptero- 
stigma very long, whitish, a black spot at the base and 
tip in the forewing. A brown margined crossvein at the 
junction of the cubitus and a less distinct one at that of 
the ramus obliquus and the postcosta in the forewing. In the 
hindwing these are absent and the ramus obliquus is scarcely 
developed. The costalveins are all simple and the costalfield 
equal in breadth. The tips are very acute, the hindborder 
a little incised, so that they seem to be curved. There is 
no pelotte developed. 
Body / 28, 9 25 mm, forewing 22—241 mm., hindw. 20—22 mm., ant. / 5} mm. 
Abd. # 23, © 19mm., gr. br. 44—5t mm, gr. br. 3i—4 mm., 2 6 mm, 
Habitat: Java. 
I examined three specimens, one © and two QQ, from 
Central Java, Semarang, collected by Edw. Jacobson, to 
whom I dedicate this species. . 
Pseudoformicaleo jacobsoni wetterensis, nov. subsp. 
A female from the island of Wetter differs from de javanese 
specimens by the pattern of the vertex: the black lateral 
markings of the posterior row are confluent and the median 
one is not corned but trapeziform. 
Habitat: Island of Wetter. 
One specimen, a female, collected by K. Schädler. 
Genus Episalus Gerstaecker (1884). 
Gerstaecker, Mitt. Naturw. Ver. Neu-Vorpomm, und Rigen, 
XVI, p. 19 (1884). 
This genus is easily recognisable by the inequal wings, 
the anterior pair being broad with obtuse apex, the posterior 
longer, much narrower, with elongate, acute apex, that is 
strongly curved. The antennae are about as long as the 
head and thorax together, the legs short and strong with 
the spurs as long as the two basal joints. The basal tarsal 
joint is about one half longer than the 3 following ones. 
Habitat: Duke of York Island and New Guinea. 
The unique species known is: 
Notes from the Leyden Museum, Vol. XXXI. 
