468 NYMPHALIDJE. 



Subfamily ACH^EIN^. 



Egg. Said by Mr. Doherty to be similar to that of the Danaince. 



Larva. Cylindrical, armed with branched spines, in the Indian 

 orms in a series of six longitudinal rows ; generally conspicuously 

 coloured and of a disagreeable odour. 



Pupa. " Suspended perpendicularly ; long, slender, smooth ; 

 two lateral angles on the thorax ; head quadrate." (Davidson 6f 

 Aitken.) Conspicuously coloured. 



Imago. Wing elongate, somewhat sparsely covered with scales 

 (Indian forms) or more or less diaphanous (some African and 

 Malayan forms) ; terminal margins always entire, never dentate, 

 scalloped or caudate. Hind wing not channeled to receive the 

 abdomen. Venation in the two Indian genera variable within 

 certain limits, especially with regard to the origin of the branches 

 of the subcostal nervure in both fore and hind wings ; vein 1 not 

 forked, none of the veins swollen at base. Antennae proportion- 

 ately rather short, with two grooves on the underside ; in the 

 Indian forms more or less scaled dorsally but not on the ventral 

 surface. " On the not-scaled ventral area of each joint there are 

 two deep impressions which become shallow towards the middle 

 carina, so that the two more impressed portions are rather widely 

 apart."* Palpi cylindrical, more or less tumid and sparsely 

 covered with hairs ; third joint short. Eyes never hairy. Fore 

 tarsi in S with one to four joints, but always functionally imper- 

 fect ; in 2 perfect. 



This subfamily is chiefly African, and represented within our 

 limits by only two genera with one form in each genus. The 

 forms seem to be protected from insectivorous enemies in all stages. 

 In the imago the slightest pressure causes the exudation of a 

 yellow, disagreeable smelling, somewhat acrid fluid. 



Key to the Genera of the Acraeinae. 



a. Antennae with a gradually formed club; hind 



wing, veins 6 and 7 stalked well beyond upper 



apex of cell Pareba, p. 468. 



b. Antennae with a short abrupt club ; hind wing, 



veins 6 and 7 not stalked, vein 7 given off before 



upper apex of cell Telchinia, p. 470. 



Genus PAREBA. 



Acrea (sect. 5. Pareba), Doubleday, in Dblday., Westw. § Hewitson, 

 Gen. Bi. Lep. i, 1848, p. 142 ; M. # de N. Butt. Ind. i, 1883, 

 p. 318 ; Moore, Lep. Ind. v, 1901-1903, p. 30. 



Type, P. vesta, Fabr., from China. 



Range. The Lower Himalayas ; Assam ; Burma ; extending to 

 China and the Malayan Subregion. 



* Jordan, Nov. Zool. v, 1898, p. 387. 



