LEPIDOPTERA HETEROCERA. 



659 



stripe, which extends from the costa before one-third of the length, 

 shortly rejects a branch to the hind border near the base, joins the 

 hind border beyond the middle, and then, forming an obtuse angle, 

 extends forwards to the disk, and is thence prolonged in two forks 

 to the costa ; it contains a few white spots, as does also another 

 brown stripe which proceeds along the hind border; under side tes- 

 taceous-yellow, tinged with red towards the base; the stripes as 

 above. Hind wings testaceous-yellow, with three brown spots ; one 

 in front, and two behind. Length of the body 10—13 lines ; of the 

 wings 28—42 lines. 



Var, Fern. Hind wings with a suhapical brown spot. 



a. North India. From M. Deyrolle's collection. 



6, c. North India. Presented by E. Doubleday, Esq. 



Genus 26. THALAINA. 



Mas. Corpus gracile. Caput et thorax pilosa. Proboscis 

 mediocriter longa. Palpi brevissimi, porrecti; articulus 2us lo 

 multo longior ; 3us conicus, minimus. Antenna? sat validae, corpo- 

 ris dimidio longiores, subtus obtuse serratae. Pedes graciles ; tibiae 

 anticae subtus dilatatae ; poslicae calcaribus quatuor longiusculis. 

 Alae latissiniae ; anticae subtrigonae, apice vix hamatas ; posticae ab- 

 domen paullo superans. 



Thalaina, MSS. 



Male. Body slender. Head and thorax hairy. Proboscis of 

 moderate length. Palpi very short, porrect; second joint much 

 longer than the first; third conical, very small. Antennae rather 

 stout, more than half the length of the body, obtusely serrated be- 

 neath. Wings very broad. Fore wings subtriangular, hardly 

 hooked at the tips; fore border almost straight; outer border 

 slightly oblique ; three inferior veins, the third about twice further 

 from the second than the second is from the first. Hind wings ex- 

 tending a little beyond the abdomen. Legs slender ; fore tibiae 

 dilated beneath; hind tibiae with four rather long spurs. 



This genus recedes very far from the typical forms of Arctiida, 

 and approaches some of the Noctuites, and also Platypleryx, to 

 which the two following genera are still nearer allied. 



A. Alae anticae rufo strigatae. 



A. Alae anticae fascia una aut nulla rufa. - Klenaea, MSS m 



B. Alae anticae fasciis dnabus vitta connexis rufis. clara, Walk 



B. Alae anticae fusco strigatae. - inscripta, Walk 



3 M 3 



