COSMOTRICHIN^E. 153 



bardy, very common (Turati), Modena (Fiori), Roman Campagna, not com- 

 mon (Calberla), Piedmont — Torre Pellice, Villar, Bobbie (Tutt). Netherlands: 

 distributed and not rare (Snellen;, Breda (Heylaerts). Roumania : every- 

 where common (Caradja). Russia : Baltic Provinces (Sintenis), very abundant, 

 the Hasik turf moor, Tursa-Gesinde. &c. (Nolcken), Moscow district (Albrecht), 

 Wolmar (Lutzau), Volga district, Kasan, Baschkiria. common (Eversmann), 

 St. Petersburg (Erschoff). Scandinavia: generally common to 62 N. lat. 

 (Aurivillius), southern and central Norway, common (Siebke), rare in southern 

 Sweden (Reuter). Spain : Andalusia (Rambur), Teruel (Zapater), G-alicia (Macho- 

 Velado), Barcelona district, Monserrat, Vich, Roda (Cuni y Martorell), Catalonia — 

 Pyrenees (Martorell y Peha), Bilbao, not common (Seebold). Switzerland : Every- 

 where (Frey), St. Gallen (Taschler), Gadmenthal, to 5000 ft. (Ratzer), Grisons 

 (Killias), Weissenburg (Huguenin), Zurich district, common (Ruhl), Chur, Splugen, 

 Val Vedro (Forbes), Brienzer Grat (Jordan), Berne (Benteli), Tessin — Chiasso 

 (Knecht), Valais, rare, tree region, La Croix de Martigny, Fully, Mt. Ravoire, 

 Mt.-Chemin, Sion, Sierre, Brigue, Schallberg, &c. (Favre and Wullschlegel). 



Subfam. : Cosmotrichin/E. 

 Tribe : Cosmotrichidi. 



The Palaearctic Cosmotrichids belong to the tribe Cosmotrichidi, 

 but Aurivillius treats the whole tribe as a genus under the name 

 Cosmotriche, although he recognises, even on imaginal characters, 

 that the species fall into two very distinct groups, which he diagnoses 

 as follows : 



a. The outer margin of the forewing not forming a curve with the margin ; ? 

 antenna shortly pectinated — Rotatoria, Linn., albomacidata, Brem. 



[ 3. The hind angle of the forewings so broadly rounded off that the outer 

 margin and the hind margin form one with the other an uniform curve. ? antenna 

 pectinated - laeta, Walk. 



This subdivision is supported most strongly by the larval characters, 

 the larva of laeta* reminding one a little of that of Dendrolimus pint, 

 and being very unlike that of C. potatoria, more different, in fact, than 

 is that ot piriformis, Moore, which is, in the larval and imaginal states, 

 also evidently generically distinct from Cosmotriche (potatoria). We 

 would suggest for section B of Cosmotriche, Auriv., the name 

 Routledgia, with laeta, Walk., as type. It is quite clear that many of 

 the species included by Kirby in his genus Philudoria {Cat., 

 pp. 820-822) are not only not congeneric with either Cosmotriche 

 or Routledgia, but belong to distinct tribal groups. These, however, 

 must be worked out elsewhere. The diagnosis which Aurivillius 

 gives of the tribe Cosmottichidi reads as follows : 



Imago : Palpi slender and very long, reaching far beyond the forehead, pro- 

 jecting almost straight, the third joint long, cylindrical. Eyes slightlv hairy, or nearly 

 naked ( 'laeta j. The forehead weakly convex, not protuberant. Legs of medium 

 length ; femora and tibiae, especially in the S , with very dense long hairs ; the 

 front tarsi on the outer side hairy almost to the tip, the middle ones only slightly, 

 the hind ones not hairy ; front tibiae unarmed, the tibial spine in the £ very 

 large, reaching to the tip, in the ? very small, knob-like ; middle and hind tibiae 

 with long terminal spurs ; the first joint of the hind tarsi as long as the others 

 together. The outer margin of the wings and the moderately long fringes more 

 or less crenate, sometimes only very slightly. Wing-form : the forewings more or less 

 (laeta) broad, with straight costa, more or less arched before the apex, strongly 

 arched outer margin, and straight (potatoria, albomacidata) or arched hind margin; 

 the apex rather sharp, almost right-angled ; the hind angle more or less rounded ; 

 hindwings with more or less strongly arched costa and outer margin. Neuration : 



*The larva here referred to, in British Museum collection, attached to this 

 series, and connected with a male from Dharmsala, possibly may not belong to 

 laeta, Walk., at all, so that this statement as to larval characters must not be relied 

 upon too strongly. Another Dharmsalan species, pyriformis, Moore, has a larva 

 which is quite Cosmotrichid in appearance. 



