( 30 ) 



L' to 4 to-iotluT. Row -^ of spines of hindtarsus (segment Ij beginning at basal 

 fonrtb. 



S- Teuth tergite long, compressed, cariuate below, highest beyond middle, 

 strongly curved at base, then nearly straight, and at apex again curved, tip 

 truncate : the broad and rather long lobe of the steruite flat, slightly curved 

 upwards, deejily sinuate, each half rounded externally, angulated at the sinus. 

 Clasper broad, dilated dorsad before middle, long hair-scales of dorsal margin and 

 scaling proximally of patch of modified scales white ; this patch clay-colour, large, 

 the scales small, very close together, longer than broad, somewhat narrowed at 

 end, bidentate (PL LVIII. f. 35) ; harpe with a sjiatulate process, which is curved 

 upwards at end, the obli(]ue upper edge in-egnlarly notched and toothed (PI. XXXV. 

 f. 1"-.'). Penis-slieath with tiro long processes close together, oue longer than the 

 other (PI. XXVIII. f. 33), the longer one denticulate. Eighth segment laterally 

 tufted ; on the inner surface on each side v^ilh a series of large friction-scales 

 (PI. LIX. f. 2), which are /tot present in the other two s]iecies of the genus. 



?. Vagioiil plate (PI. XXI. f. 10) much folded, raised mesially from base 

 to vaginal cavity ; the proximal edge of the latter raised into a double tubercle. 



Larva and chrysalis see above. 



The type of ci/rtoloj^thia is a small ? of this species ; there is no diti'erence 

 between it and nt/ctiphaiics either in colour or structure ; the vaginal plate is as 

 in iiyctiphanes ; the wings are very much broken at the tips. 



llah. North and South India, Ceylon, Andamans, Burmah, Malacca, Borneo, 

 Palawan. 



In the Tring Museum 13 i i, lu ? ? from : (ieylon; Khasia Hills (October); 

 Jaiutia Hills; Burmah; Perak; Penang, :^U. vi. '1>8 (0. Curtis); Andamans; Sarawak; 

 Palawan. 



U). Meganoton rufescens. 



"DiUuVm rufescens Butler, Proc. Zool. Sue. Land. p. 200. n. 67 (1875) (N. India ;— Brit. Mus.). 

 ViluiVia rubesceiis id., Trans, Zool. Soc. Loud. ix. p. 615. n. 18 (1877) {nam. Mor.). 

 PsciidoK/ihin.r. disclslriija, Hampson {noii Walker, 1856), ill Bliinf., Fauna Brit. Iiul., Muths i. p. lu.'i. 

 n. 169 (1892) (partim). 



(J?. Palpus as large as in tii/ctiphaiics, second segment shorter than broad 

 (scaling included). Antenna of S rather thicker than in mjrliphancs. Abdomen 

 with 3 or 4 distinct yellow side-patches bordered above by a black continuous baud. 



The species bears a remarkable resemblance to the American Coci/tius lucifer, 

 as well as to dark specimens of the Oriental Fis/!ot/ramma menephron, with which 

 Sir George Hampson confounded it. 



As Butler's earlier IHludia rufescens and the present insect belong to two 

 difl'erent genera, there is no necessity to reject the name of rufescens for this 

 Meyatioton. 



S. Tenth abdominal segment very peculiar (PL XXVI. f. 3(i. 31. 32): the tergite 

 gently curved, strongly sj)atnlate, the sides of tiie dilated ajiical portion clothed 

 with some long stiff hairs and turned downwards, apical margin rounded-truncate 

 (PL XXVI. f. 30, dorsal view) ; the tergite thin ; the steruite longer than the 

 tergite, suddenly turned upwards near end, and, moreover, produced at tbe curvature 

 into an obtuse jiroeess (PL XXVI. f. 31), which is comiiressed like the vertical 

 cleft ajiical part of the steruite (PL XXVI. f. 3:i). Clasper: ventral margin 

 oblicpie ; dorsal one first straight, then somewhat dilated and turned inward ; apex 

 oliliquely rounded ; jiatch of friction-scales clay-colour, the scales large and multi- 



