GEOMETRIDAE. 



151 



genotype M. murinata, pending further research. The Indo- Australian genus 

 Poecilasthena Warren, and still more the Holarctic Oporinia Hubner, differ more 

 widely from Asthma ; cf. Turner, torn, cit, pp. 229, 231, to which should be 

 added, in the case of Oporinia, that the frenulum is aborted, the resting posture 

 different, the uncus fully developed, the heads of the labides united, and that 

 the early stages are not comparable. Poecilasthena consists of : ten or eleven 

 Australian species, one of which (P. thalassias Meyrick) extends to New Guinea, 

 the South Moluccas, and even Malaya (subsp. div. ?), and has a close relative 

 in Upper Burma (P. burmensis Prout, 1926) ; two species found in New Guinea ; 

 and two or three which occur in New Zealand. 



The new species described below shows the general scheme of markings 

 characteristic of the genus, or in particular of A. euthecta Turner, but even 

 more recalls the Psilocambogia section of Eois Hubner (E. memorata Walker, 

 E. cymatodes Meyrick, etc.), a genus which differs essentially from Asthena in 

 having the areole simple and very small, or even entirely wanting, the first 

 subcostal stalked well beyond the fifth, and the genitalia (so far as investigated) 

 more Anisodes-lifce. In the species about to be described, there are no signs 

 of definitely close affinity with any other known to me, and I shall not be sur- 

 prised if the $ proves to possess some characteristic specialisations. 



26. Asthena eurychora, sp. n. 



$, 23-24 mm. Face not broadened. Palpus with terminal segment dis- 

 tinct, projecting slightly in front of face. Antenna with minute ciliation and 

 with single longer and stiffer hairs. Head, body, and wings buff, more whitish 

 beneath. 



Fore wing with cell short (not quite f), SO 1 very proximal at origin, both 

 areoles very long, SC 1 separating proximally to the apex of the outer one, B, 1 

 shortly stalked with SC 3-5 , M 1 from before end of cell ; rather glossy, very 

 pale yellowish (not quite so bright as cartridge buff), with the irroration and 

 markings dull cinnamon, sufficiently dense to give the wing a prevailing tone of 

 pinkish buff ; cell-dot mixed with black ; lines crenulate, slightly bent near 

 costa or (the outer ones) more evenly curved, mostly rather thick, in part mixed 

 with grey, especially the first postmedian, which appears a little less crenulate 

 than the rest ; two subbasal not very sharply defined, the outer the thicker ; 

 two antemedian, rather irregular, perhaps more slender than the rest ; sug- 



