2.50 XANTHORHOE. By L. B. Prout. 



■<iii,':bscur(ila. X. subobscurata Walk-. (= ascotatai'eW.. petiopola Meyr.) (25 b). One of the largest XanthorJioe. further 



i"ecogniza])le Ijy its grey colour aud almost solid flark border; darker beneath, the forewing with white apex. 

 Not common. Otira River. Bokl Peak. QueenstoAvn. etc. 



rlandexiiiia. X. clandestina Philpoll (25 b). Much smaller (35 mm), simikirly coloured, but without the admixture 



of ochreons and whitish scales ; bUie-grey, with the hnes faintly darker, no dark terminal band : cell-mark of 

 forewing rather elongate. dark. Arthur 's Pass, the type a :^. 



vmbi-om. X. umbrosa Philpolt (25 b). Varies from 33 to 40 mm. Antennal pectinations moderate. Termen of 



forewing waved, of hind\^'ing rounded, crenate. At once distingiüshed from the other greenish New Zealand 

 species by its mnch larger size. Underside grey, with similar markings, paler and rather sharply marked on the 

 hindwing. Moinit Cleughearn. Hunter Mountains, at about 3250 feet; J,^ common at flowers of Dracophyllum 

 longifolium. $ rare. 



cedriiKHles. X. ccdrlnodes Meyr. (25 b) approaches umbrosa in size and shape, but has the forewing brown, the post- 



median of the hindwing more strongly sinuous. Pectinations quite short. The type is a mountain form: Mount 

 wuhihtta. Arthur tableland (type), Mount Cook. Bluff. Invercargill. Stewart Island. — ab. undulata Philpoü, described 

 from Tisbin-y (Invercai'gill) has the median band of the forewing almost obsolete, a large irregulär dot at the 

 base of the 2nd median and conspicuous blackening of the 3rd radial and the niedians as far as the postmedian 

 episcma. line. I have a similar cj from Queenstown. - episema subsp. nov. (25 a) is, according to Hudson, the lowland 

 form, found around Dunedin. lighter and brighter. yellow brown with the basal patch and median baiid rieh 

 chocolate brown. Type and others in my collection, from Flagstaff Hill, Dunedin. 



khi. X, (?) ida Clarke (25a). Venation of hindwing not given. so I leave it provisionally here; its shape 



begins slightly to aijproach that of dissimilis but the warm coloiu'ing and the pattern are entirely different. 

 Pectinations very long. Forewing brown, median band not sharply differentiated, its outer central lobe weak; 

 a more reddish band between postmedian and subterminal. Hindwing i)ale ochreous, weakly marked; sub- 

 terminal macular. Eweburn Stream, near Mount Ida. Central Otago. A remarkable ,^ from Motupiko River, 

 Nelson, is assigned to this species as a striking variety and said to differ in having the posterior half of the 

 median band of forewing occupied by a conspicuous white blotch and the terminal area of the hindwing some- 

 what streaked brown; analogous to a form of Variation foiuid in some New Zealand CMoroclysfis species. 



dissimUis. X. dissitllilis Philpott (25 c). Readily distinguishable by the wing-shape and markings, the hindwing 



recalling Xyridacma ueronicae (p. 136). Described from Ben Loniond. My si^ecimens are from Queenstown and 

 Arthur's Pass. 



cMonoyram- X. chionogramma Meyr. (25 a). Pectinations of the o rather long and widely spaced. Forewing rather 



"'"• broad, coloration nearly as in cedriywdes: the broad median band not sharply defined proximally. distally bounded 

 by a very characteristic white line f r o m c o s t a t o t h e p r o j e c t i o n a t 3 r d r a d i a 1. Under- 

 side more strongly marked. Founded on 2 ,^rj which were collected in a wooded guUy on Mount Hutt. Our 

 figure is from an Egmont V- Fvuther distributed in the mountains from the Tararua Range to Wakatipu. 



canielias. X. camellas Meyr. (25 a). Smaller than chionogramma. costa of forewing still more arched distally. 



termen markedly sinuate, the white postmedian mark wanting, etc. Pectinations shorter. Whangarei, Otira 

 River, etc., the type a o from the first-named locality. 



periphaea. X, periphaea Meyr. (25 a). Wings longer and narrower than in the two preceding. pectinations much 



as in chionogramiiKi. Another rather inconsi^icnous brown species. but the white dots and dashes, chiefly on 

 the veins, are well noticcable. Lake Wakatipu district. not common. 



rhtomcapna. X. chlorocaptia Meyr. (25 c). o, 24 — 26 mm. Palpus long. Pectinations very long. "Very distinct; 



the nearest New Zealand species is perhaps periphaea" (Meyrick). As is shown by our figure, the dark smoky 

 wings, with only the fringes and on the forewing some costal spots pale, give it a distinctive ajapearance. Under- 

 side with the double pale costal mark outside the postmedian stronger and with a corresponding rather broad 

 pale band on the hindwing. Hindwing with the 2nd radial from about the centre of the discocellulars ; scarcely 

 a true Xanthorhoe. Chatham Islands. 



ncmwiijnaia. X. scmisignata Walk. (^ ])unctilineata Walk., dissociata Walk., similisata Walk., corcularia Guen., 



cinerearia part. Meyr. olim, nee Walk.) (25 c). Larger than the similar Larentia species which were at one time 

 confused .with it and with more joints of the S antenna pectinate (about 28. against 21 or 22 in them); the same 

 characters, as well as the tone of colour, separate it from the only similar New Zealand Xanthorhoe (see plumbea 

 below). It is therefore really an unmistakable species and by no means so variable as to justifv the long syn- 

 onymy. Widely distributed in both islancLs, from sea level up to 3000 feet. 



