412 W. Dolioi'ty — Ofr/nin hjcvenidce fwm Lower Tenasserim. [No. 4, 



especially ArJwpala. It includes four species resembling each other but 

 slightly. 



A number of spooios connect these genera with the Arliopalas, The 

 egg varies greatly in these. Panchala {rjayiesa), Acesina and Flos (genua 

 nornm) are distinguished by the long costal vein of the forewing, and 

 the structure of the third and fourth subcostal veins, vrliich, after their 

 separation, are short, very unequal, and very close to the costa. In 

 Panchala and Acesina, the costa of the hindwing is slightly tilted up at 

 the apex, there is no lobe (a tail in Acesina only), and the underside is dull- 

 coloured. In Flos the costa of the hindwing is regularly rounded, there 

 is a conspicuous lobo and a tail, and the underside is richly marked. 

 The type is apidanus, and the gemis is widely distributed, occurring 

 from the Himalayas to the Austro-Malayan islands. Barasana has the 

 subcostal veins as in Panchala and Flos, but a very short costal vein in tho 

 forewiug, the cell of which is more remote from the costa. It has no lobo 

 or tail, and seems a tolerably distinct genus. Some species of Flos have 

 an egg with triangular spaces. The typical species have, however, a 

 small green egg with rough vesicular raised lines enclosing hexagons, 

 and very small irregular knobs at their intersection. The egg of Mota 

 massyla is somewhat similar, but there are no tubercles, and the reticu- 

 lation is more delicate. The wings are not unlike those of Zephyrus 

 in structure with an additional tail ; the colouring is somewhat as in Flos. 



In the Arhopala group the egg is a remarkable one. It is also 

 rather small, delicate, usually green with raised white lines enclosing 

 quadrangles (as in the XiettiZorif/iiice), and bearing acute spines at their 

 intersection. This type of egg occurs in all the large swift-flying Arho- 

 palas, and in many of the smaller and obscurer kinds. They all have 

 the costal vein of the foi'ewing shorter than in Flos and its allies, and 

 the subcostal branches normal. They agree with those genera, and 

 differ from the other Theclince in the position of the cell, which is remote 

 from the costa, and in tho length, and slightly oblique direction of 

 the upper discocellular vein. A number of the obscui'er species have 

 eggs with tubercles and triangles as in the Thecla group, bitt I do 

 not know any structural points by which they can be separated from 

 the rest. 



The Arhopalas are extremely uniform in structure, as in aspect, 

 and on account of their great numbers ai-e difficult to arrange. In them 

 it would be advisable to admit generic distinctions wherever it is pos- 

 sible to make them. 



The Thecla and Arhopala groups agree in many particulars, one of 

 the most striking resemblances being that of the prehensors, which in 

 all the genera known to me are short and thick, the branches of tho 



