( 186 ) 



longer tlian the respective first tarsal segments, which are about as long as the 

 cell of the hindwiug is broad apically ; tarsal segments 3 and 4 not twice as long as 

 broad ; pulvillus and piinmyebinm present, the latter with two lobes at each side, 

 the ventral lobes broader ; foretibia with a thorn at the end ; spars ver}' short, two 

 pairs close together on hindtibia, the longer terminal spur little longer than the 

 tibia is broad. Wings entire, falcate, apex pointc I, not sinuate between SO' and 

 SC'' ; W of forcwing shorter than D* ; 11^ of hindvving central, or a little behind 

 centre of cell, D- slightly curved or straight, D^ twice as long as D', lower angle of 

 cell almost 00 , sometimes obtuse ; freuuhim and retinaculum present. No friction- 

 scales on clasper and eighth tergite. 



Larva as in Amph/pterus, with white dorso-lateral line. — Food-plaut : Oreo- 

 daphne acutifolkt. 



Pnpa not described in detail ; head with two tubercles, tongue-case not reaching 

 end of wing-cases. 



Ilab. Subtropical Brazil ; Argentina. 



One species. 



A develoi)raent of Amply pterus. 



150. Orecta lycidas. 



*Amhi:hjx hji-iiUss Boisduval. Spec. Gin. Lip. Hit. i. p. 191. n. 15 (1875) (Bnizil ;— eoU, Cliiirles 

 Oberthiir) ; Rothsch., Nov. Zooi,. i. p. 8G (1894) { = tithonus=eo»'). 



i ? . Individually variable in the markings. Frons uuicolorous, except a dot 

 at each side which is white like the terminal surface of the palpi. Mesothoracic 

 tegnla without a grey fringe posteriorly and laterally. Abdomen with a dark 

 mesial line, which is mostly interrupted on each segment ; eighth tergite of S 

 without patch. Tibiae with a white basal spot. Hiudwing, near anal angle, with 

 a double spot of ovate scales which fall off easily, leaving the spots naked and 

 therefore transjiarent. 



On examining a series of specimens we come to the conclusion that the 

 differences pointed out by Kirby (see below) between b/citlus, eon and tithonus are 

 not specific and not constant. But the Argentinian individuals and those from 

 Urngnay and neighbonring districts differ on the whole somewhat from the examjiles 

 found in the provinces of llio de Janeiro and Espirito Santo, and must be kept 

 apart as a separate subspecies until it is proved, on receipt of more material from 

 the province of Rio, that the ajiparent diUerences are merely individual, not being 

 met with in the greater proportion of the individnals. 



<?. Eighth sternite ftiintly lobed mesially. Tenth segment essentially the same 

 as in Protamhidijx and Ampli/pternx ; sternite shallowly sinuate, sides rounded, 

 the spinose area more extended than in Amphjpterm. (,'lasper sole-shaped ; harpe 

 (PI. XXXI. f. 6) with a broad and rather high subraesial ridge (yw/») which inclines 

 distad, the distal process {pt) very feeble, scarcely separated from the clasper. 

 Penis-sheath (PI. XXX. f. W) resembling that of Amplijpjteru^, the carina terminally 

 fused with tlie membrane of the duct. 



¥. Vaginal plate not strongly chitinised, broadly rounded distally, no special 

 armature at orifice. 



Larva : see above. 



Ihth. Esj)irito Santo to Argentina. 



Two subspecies : 



