( 381 ^ 



All the sjiecies of LeucorlDiiiiplin have a hlai'kisii brown siuiuite patcli on tin: 

 mesothoracic tegula, similar in shape to a basal patch on the forewiiig, and agree 

 also in other respects closely with one another in colour and pattern. 



Key to the species : 



a. Silvery mark of forewing about lit mm. long, 



reaching beyond postdiscal line . . 311. L. loii<iistrl<j(i. 

 Silvery mark of forewing less than (i mm. 



long, abdomen with yellow belts or spots . . . h. 



b. Yellow belts of abdomen reduced to trans- 



verse dorsal spots ..... 31u. L. ornatas. 

 Yellow belts of abdomen reaching ronnd the 



whole tergite ........ c. 



c. Silvery mark 4 to o mm. long, forked . . 3n,s. L. tri ptolemna. 

 Silvery mark 3 mm. long, lower branch 



obliterated 30y. L. ilij'um. 



30s. Leucorhampha triptolemus. 



Sj)hhur triptolemus Cramer, Paji. Ex. iii. p. 40. t. "JIG. f. l' (177'J) (Surinam) ; Goeze, Eiit. Bujtr. 



iii. 2. p. 2v>6. n. 86 (1780). 

 Uemeioplanes triptolemuf, Hilbner, \'eiz. bek. ScIdii. p. 133. n. 142G (1822) ; Butl., Trims. Zool. Sor. 



Loml. ix. p. 543. n. 1 (1877); Druce, in Biol. Centr. Amer., Lep. Het. i. p. 8. n. 1 (1881) 



(Guatemala ; Panama) ; Kirby, Cut. Lep. Het. i. p. 647. n. 1 (1892) (Brazil) ; Rothsch., Nov. 



ZoiiL. i. p. 10 t. C. f. 10 (1894) ; Druce, l.r. Sujipl. p. .303 (1896) (partim ; Mexico). 

 CalUtmima triptt,Umu», Walker, /./»/ Lep. /n.s. B. M. viii. p. 111. n. 4 (1856) (Brazil ; Ega ; Para). 

 Triptogim triptuleiiim, Mi'nC'trie's, EnHin. Corp. Aiiim. J/».<. Pelr., Lep. p. 95. n. 1569 (18.')7) (Brazil). 

 Philampilus (!) triptolemus, Schaufuss, Nunq. Otius. i. p. 19 (1870) (Surinam). 

 Madoryx triptolemus, Moschler, Verlt. Zool. Bot. Ges. Wien xxvi. p. 348 (1876) (Surinam). 



S ? . Yellow belts of abdomen extending from one side of the tergites to the 

 other ; forewing with little or no greenish yellow scaling ; silvery mark 4 to .J mm. 

 long. Palpns, below, much more whitish grey in some specimens than in others. 



S. Harpe (PI. XLVI. f. HJ) with a comparatively slender, obtuse, curved 

 j}rocess. 



Ilab. Me.xico to Brazil. 



In the Tring Museum ]2 6S,' ? ? from : Jalapa, Mexico, ii. iv. (Schaus) ; 

 Aroa, Venezuela ; Merida, Venezuela, vi. (Briceno) ; Trinidad ; Fort George, ix. ; 

 Rio Demerara : Amazons ; Rio Dagua, Colombia (Rosenberg) ; Paramba, Ecuador, 

 3oUU ft., V. "'.IT, dry season (Rosenberg) ; 1 ? ex coll. Lennep. 



3u9. Leucorliampha diffusa s]iec. nov. (PL VI. f. lo, 6). 



S ?. Like the preecJiug with oinii.li'fi' yellow dorsal lielts t<i alulomen : tVingc 

 of tergites also yellow. AVings deeper in colour, stronger dentate, l)roailei-. Fore- 

 wing in basal area and on disc, hindwing in submarginal area, obviously shaded 

 with bluish white scaling ; silvery mark only 3 mm. long, not forked proxiraally, 

 the posterior branch being obsolete ; snbbasal area of hindwing bluish white. 

 Underside of body and wings more rufous than in triptoh-mi(», postdiseal area along 

 the greyish brown border ferruginous. 



S. Harjie (PI. XLVI. f. 14) sinuate at end, both lobes obtuse, tlie upper 

 one the longer. 



Length of forewing: S, 45 mm. ; ? , 4T mm. 



Hab. Colombia to Bolivia, probably more widely distributed. 



