LITHINA. By L. B. Prout. 403 



reaching the costa, almost straight-edged proximally, its distal edge gently curved outwards, midway between 

 this band and the apex the costal commencement (broken into spots) of a submarginal band. Hindwing dirty 

 light grey, with an extremely indistinct darker band in the middle, only at its distal boundary somewhat more 

 distinct. Forewing beneath darkened proximally, with broad lighter distal part and light, strongly dark stri- 

 gulatad costal margin. Uliassutai district. 



D. anotnalata Alph. ( = adzearia Ob.) (24 c). Ground-colour more white, more strongly irrorated, than anomalata. 

 in the typical species and recognizable at a glance by the strongly incurved postmedian line, M'hite subterminal 

 (especially at the apex) and other characters. Amdo, Koko-Nor and W. China. 



153. Genus: liithiiia Hbn. 



Pace smooth or ending in slight pointed tuft below. Palpus shortish or moderate. Antenna hi ^ simple. 

 Forewuig without fovea; apex more or less pointed, distal margin smooth, 1st subcostal free, or very rarely 

 connected with 2iid, 2nd from cell, often anastomosing or connected with 3rd — 4th. Hindwing with costal 

 margin rather long, distal margin smooth. — Larva smooth, cylindrical, of normal proportions. Range: Pale- 

 arctic and Nearctic. Certainly not related to Ghiasmia; the genitalia show Ennomid affinities. 



L. ohlorosata Scop. (= innata Fl., petraria Hbn.) (23 i). Quite distinct from all other Palearctic spe- chloroaaia. 

 cies, forewing light brown, the lines finely whitish, proximally dark shaded, subterminal line rather straight, 

 sometimes indistinct. — Larva moderately elongate, dull green with brown lines and white spiracular stripe, 

 feeding at night on bracken (Pteris aquilina). The pupa hibernates and the moth appears in May. Very common 

 in many parts of Central Europe and extending to Asia Minor, N. Persia, the Altai, Amdo district, S. E. Siberia 

 and Japan. 



L. rippertaria Dup. (23 i). Variable, in the name-typical form easy to recognize by the thick black lines ripperiaria. 

 of the forewing, the postmedian curved, somewhat angulated at the 1st radial, both very slight (obsolescent) 

 in their anterior part. — ab. ravouxi Th.-Mieg has the black lines united by a thick longitudinal one in front ravovxi._ 

 of the 2nd submedian vein. — ab. pallidaria Stgr. lacks the black bands. — ab. (?) irrorata Chr. is in some f^oratH"^' 

 measure transitional; irrorated with fuscous, the lines indistinct, fuscous, not black. N. E. Siberia and Hi 

 district. — A very local species, inhabiting S. France, N. Italy, S. E. Russia, Transcaspia, the Kentei Mountains, 

 etc. — Larva very like that of ariesiaria, moderately elongate, smooth, bluish green with fine dark dorsal line, 

 fine geminate whitish subdorsal and broad straight white lateral stripe. On Salix. — tlavularia Piing. differs flavularia. 

 from the name-type in having the ground-colour uniform sandy yellow with fine browner irroration. Aksu, 

 together with — ab. analogaria Piing., which corresponds to ab. pallidaria, lacking the black lines. analogaria. 



L. tancrearia Stgr. (23 i). Superficially rather like a more whitish, more strongly brown-clouded iancrearia. 

 rippertaria, but with the postmedian line far more bent outwards in its anterior part. Structurally very distinct 

 in its more protuberant face, moderately ciliated (J antenna and in having the 1st — 2nd subcostal of the fore- 

 wing coincident, thus not a true Lithina. Transcaspia, Issyk-kul and Thian-shan. 



L. convergata Vill. (= scutularia Dwp., permutataria Frr., peltaria Bsd.) (23 i) is characterized by convergaia. 

 the proximal curve of the postmedian line and usually by the conspicuous yellow shading of both the lines. 

 More glossy and less coarsely dusted than partitaria, especially in the (J. Moderately variable. — Larva rather 

 short, cylindrical, grey, with numerous longitudinal dark lines and broad, straight, white lateral line. On Ros- 

 marinus officinalis, extremely sluggish. The perfect insect emerges from the middle of October. S. France, 

 Spain and Piedmont. 



L. jordanaria Stgr. is described as similar to convergata but with the yellow stripes broader and differently jordanaria. 

 formed; antemedian slightly curved outwards, in segments, postmedian running into the costal margin near 

 the apex. E. Palestine. 



L. partitaria Hbn. {— bipartita i?6?-.) (23 i). Colourmg more washed-out than ui scwtofena i)M7?., mox& partitaria. 

 coarsely irrorated, the yellow lines variable, pale, the postmedian not incurved or only so in its middle part. — 

 ab.' faeculenta Th.-Mieg is more vinous, little irrorated except at^costa, the yellow lines better expressed. — faecidenta. 

 ab. litoralaria Trti. is much larger, with brown lines edging the j^Uow ones on the reverse sides. S. Remo, litoralaria. 

 etc. — Larva moderately elongate, nearly cylmdrical, slightly attenuated at the extremities, segmentation 

 distinct; yellowish grey, washed with greenish on the sides of the first 4 or 5 segments; dorsal line very fine, 

 double, interrupted, a sagittate brown pattern on the 1st — 6th abdominals, a rather broad, waved, whitish 

 lateral line. On Teucrium in the autumn. The pupa hibernates and the principal emergence takes place in the 

 spring, but some pupae lie until August or September. S. France, Spain and Algeria. • — obliterata Stgr. lacks oUiterata. 

 the yellow lines. The sole example before me (from Tkout, Algeria) has the forewing slightly more elongate and 

 shows on the underside a distinct dark postmedian line (faintly traceable also above), placed nearer the distal 

 margin than the postmedian line of partitaria. .Algeria and Murcia. 



