2(J6 Prout, Geometridae. 



12(). (»iioplios caeiiosa IJastelbergor. — 2 ?, Suisharvo. Decembei 

 1911 aiul February 1912; 1 V, 8hisha, May-Jiuic 11)12. 1 am aiinost 

 inclined to treat this as a rather large, rathcr uniform gvevn form of 

 muscosaria Walk., but as Ihe distal margius are rather less dee])ly 

 crcnulate, especially tovvards the anal angle of the hindwing, it is perhaps 

 better for the present to leave it as distinct. At least it is a good local 

 race. On the underside the costa of the forewing is not or scarcely 

 dotted with black and a dark snbmarginal shade is indicated on the 

 hind- as well as on the forewing. 



127. Gnophos (Hyposcotis) dclitesceu.s ßastelberger (= riisticaiia 

 Wileman, nov. syn.). ~ 9 J", 7 $, Kankau, Sokutsu, Kosempo, Chip- 

 Chip, Alikang, Suisharyo, 8hisha; also at Karapin (Japan). I have 

 not seen Bastelberger's type (described as Scotopteryx) but have little 

 doubt it is the same species which Wileman later described as Ectropis (?) 

 rusticaria. Hyposcotis is the correct name for Lederer's subgenus B of 

 (JyiopJios. In the present species, as in many of this group, the ö" antenna 

 is almost simple, only extremely minutely ciliated; as in perspersafa, 

 SC^ of the forewing is long-stalked with SC"^ and anastomoses briefly 

 (or is shortly connected) with C*; the distal margin of the forewing is 

 eveu less oblique than in most of the European species and very slightly 

 undulate. Evidently a common Formosan species and not variable. 

 128. Ectropis boanniaria Guen. — 1 o , 1 ?, Punkiko (Japan), August 

 1911. Distributed throughout the greater part of the Indo-Australian 

 Region. Recorded from Formosa by Butler in 1880. 



*129. Ectropis bliminitra Walk. — 2 ö, Kosempo, May and October 

 1911; 1 ?, Sokutsu, Banshoryo district, June 1912. This may probably 

 be the form recorded by Bastelberger (Iris XXII, p. 177) as dentilineata 

 Moore. In this exceedingly difficult group it seems at present impossible 

 to judge of the Status of some of the forms, at least without larger 

 material and probably supplemented by biological and anatomical 

 investigations. In their warm brown tone, Sauter's examples equal, 

 if they do not sur|)ass, the brownest forms of bisiorlatd laricaria H. Doubl, 

 though they vary inter se, the May ö* being deepest brown, the $ palest 

 in ground-colour but with the densest dark dusting. The venation is 

 that of most of the Asiatic representatives of the group, SC^~^ in both 

 sexes arising apart from iSC"^"^. Ham])son separates bhurmiira from 

 crepiiscvlarid and flenlilinfafa solely by its much browner colour. 



180. Ectropis duplicata Wileman. — 1 ?, Shisha, May- June 1912. 

 Doubtfully moi'e than a local form of ignobiJis Butl., from Japan; rather 

 greyer, median shade of forewing undeveloped; the o antenna may 

 jDossibh' have rather more projecting joiuts and stronger ciliation. 



