Piiilpott. — Descriptions of New Species of Lepidoptera. 125 



Art. IX- -Descriptions of New Species of Lepidoptera. 



Bv Alfred Philpott. 



Communicated by Dr. W. B. Benham, F.R.S. 



[Raid before the Otago Institute, 9th October, 1917; received by Editors, 22nd December, 



1917 ; issued separately, 24th May 1918.'] 



Hydriomenidae. 



Hydriomena canescens n. sp. 



J. 29 mm. Head, palpi, thorax, and abdomen rather dark grey. 

 Antennae, ciliations 1. Legs grey, tarsi annulated with ochreous-white. 

 Forewings triangular, costa subsinuate, apex obtuse, termen subsinuate, 

 oblique, brownish-grey : a broad curved basal band obscurely paler : veins 

 interruptedly blackish : second line thin, obscure, ochreous, anteriorly 

 margined with white ; indications of alternate ochreous and white lines 

 between this and termen ; a black line round termen, interrupted by 

 ochreous dots on veins : cilia dark grey with a faint paler median line. 

 Hindwings whitish-grey, darker terminally ; numerous alternate waved 

 darker and paler lines ; terminal area and cilia similar to forewings. 



Near H. hemizona Meyr., but the ground-colour is wholly different, and 

 there are many minor distinctions. 



Queenstown, in March. A single specimen taken by Mr. M. 0. Pascoe, 

 in whose collection the type remains. 



H. praerupta n. sp. 



j. 33-34 mm. Head yellowish-green. Palpi yellowish-green mixed 

 with brown. Antennae brown, ochreous-tingecl. Thorax yellowish-green 

 mixed with black. Abdomen ochreous. Legs ochreous-grey, more or less 

 infuscated. Forewings triangular, costa moderately arched, apex obtuse, 

 termen slightly bowed ; yellowish-green : markings dark olive-green ; a curved 

 irregular band near base, preceded by an obscure line ; space between 

 basal and median bands pale ground-colour with suffused dark median 

 area ; median band broad, anterior margin curved, with strong indentations 

 above and below middle, posterior margin irregularly curved, with strong 

 bidentate projection at middle; subterminal line greenish-white, subdentate, 

 broadlv margined anteriorly with dark suffusion which almost touches pro- 

 jection of median band, thus nearly interrupting the stripe of pale ground- 

 colour ; an oblique dark striga from below apex to terminal line, deliminating 

 a pale subtriangular apical patch; a crenate blackish terminal line: cilia 

 yellowish-green with some dark scales. Hindwings grey-whitish : a waved 

 fuscous median line and several similar but imperfect preceding and fol- 

 lowing lines ; a thin blackish crenate line on termen : cilia ochreous-grev. 



Closely related to H. callichlpra (Butl.), from which it can be best 

 separated by the pale apical area, the more dentate subterminal line, and 

 the stronger projection of the posterior margin of the median band. Tin- 

 species may be regarded as the mountain representative of callichlora. 



Mount Cleughearn, Hunter Mountains. Two males in January, 1916. 

 A single male in Mr. M. 0. Pascoe's collection was taken at Lake Howdeu 

 in November, 1912. Type in coll. A. Philpott. 



