( 422 ) 



III coll. (Umvlps Oberthiir 1 c?, 1 ? from Zarate, Argentina (Kinkelin). 

 i?nrmeistpr's fijjnre does not, quite agree with the specimens which we consider 

 to be ixion ; we iiclieve the tigure to lie incorrect. 



li;")'). Nyceryx nephus. 



*Prrl!fi„iia nqihiix «oi!-d\iViil, /.'■. p. .".2:!. n..") (IHT'O (Rrazil ; -coll. Charles Oberthiir); Butl., Tntiix. 

 X„ol. S„r. t.nml. ix. p. (;:!.'! (1M77) ; Kirby, I.,: n. 7 (lK9i!). 



(?. The ty])e is nni(Hie ; we have not seen another specimen. Very close to 

 alophus in colour, marginal band of hindwing broader, traces of brown spots ; disc 

 of forewing below ochraceons between the lines. Whip of penis-sheath rather 

 longer than in alophus, with more teeth ; left ridge of sheath abruptly ending 

 distally, not evenly rounded ; the teeth of the right side on a small ridge ; 

 armature of penis-funnel diifering in there being no small process, but only one long 

 one at each side, this broader at end than in alophus and close to the funnel. Harjie 

 acuminate, upper margin slanting distally. 



Ilnli. Brazil, probably Province of Rio de Janeiro. 



357. Nyceryx riscus. 



*Eini(> rixriix Schaus, EiU. Aiiirr. vi. p. 20 (ISHO) (Mexico ; -coll. Schaua) ; Druce, Binl. Centr. 



Amn:, Lep. IJct. SiijjjjI. p. 302. n. 2 (.\). t. (!(!. f. 3 (189G) (partim ; Mexico : Jalapa, Orizaba ; 



G uatemala). 

 Trijiliiyon riscus, Kirby, Cat. Lep. Eel. i. p. G44. n. (18112). 

 Pachygoiiia creiisa Rothschild (Staud. in lit.), Nov. Zooi,. i. p. 0G5 (18'J4) {iiom. niuL). 



S ?. Variable in size, but always smaller than sfuarfi, and paler, with the ape.>c 

 of the forewing distinctly sinuate. In this and the preceding species the stigma of 

 the forewing is indistinct, with grey centre, and there is always a rather obvious 

 black dot in front of it. 



6. Tenth segment about as broad as in Sesia tantalus (PI. XLI. f. 25), the 

 lobes not nearly so widely apart as in stuarti ; tergite much less twisted, and more 

 evenly cnrved ventrad, sharjily j)oiuted in side-view ; steroite diiferent in shape from 

 that oi stuarti, dilated before the hook, somewhat more so than in magna (Pi. XLI. 

 f. 2G), less than in nictitans (PI. XLI. f. 24). Harpe a little shorter than in 

 stuarti, with a few nothes at the end. Penis-slieath (PI. LIII. f. 42) without 

 whip, ending in a triangular, not movable process, which is densely dentate at the 

 tip and along the right edge. 



? . Vaginal plate as in stuarti, apical margin more rounded in middle. 



llab. Mexico to Bolivia and Sao Paulo. 



Ill the Tring Museum 11 c?c?, 5 ? ?, from : Jalapa, iv. vi., and Orizaba, iv. vi. 

 (Schaus) ; Honduras ; Car{)e, Venezuela (Mocquerys) ; Cucuta, Venezuela ; Merida, 

 Venezuela (Briceuo) ; San Aiignstin, Mapiri W., Bolivia, 35(J0 ft., vi. ix. ls95 

 (Maxwell Stuart) ; Bauru, Sao Paulo (Dr. Hempel). 



358. Nyceryx stuarti. 



*P,irh!i(i„nia stuarti Rothschild, Nov. Zoiii,. i. p. 6G5 (1894) (R. Cachyaco ;— Mus. Tring) ; id., he. 



ii. t. 9. f. 11 (189u). 

 Emjo riscus, Druce, Biul. Centr. Amer., Lep. Iht. Siiji/il. p. 302. n. 2 (.\) (189G) (partim). 



c? ? . Larger than riscus, with which it has been confounded. Forewing, 



above, darker, the discal lines more strongly curving costad, apex truncate, 7iot 

 sinuate. Hindwing : yellow colour more restricted, in ? less extended yellow 



