( 82 ) 



imiiiteil. l)iirs()-;i.]iiciil iii;ir;;iii iif cliispcr Ijriit inward ; tlu' dentiite U[i|iei' portion of 

 the liarj)e not strongly developetl dorsad and distad, its margin slanting towards 

 the ventral, curved, hovizoutal, process (PI. XXXVII. f. 13). Penis-sheath with 

 long apical tooth, which slants distad as in muticosd (PI. XXIX. f. 3U). 



?. Eighth alidoininal tergite sinuate or impressed mesially at apex. Ante- 

 vaginal plate with a rather long triangular lobe, the apex of which is rounded 

 and proximally ])rodaced into another, almost similar, lobe or ridge, wiiich 

 jioints proxiniiul I'orining the slanting rooC of a Iransvcrse groove in front of the 

 antevaginal jilate. 



Larva and chrysalis not known. 



Hub. Mexico to Costa Kica ; Venezuela ; most likely also in Colomljia. 



In the Tring Museum 14 c^J", 1(5 ?? from: Mexico; Honduras; Aroa, 

 Venezuela. 



50. Protoparce lefeburei. 



Sphinx lefeburei Guerin, Iconoe/r. Eigne Aniin., Ins. p. 494 (1S44) (Bolivia). 



*Macrosila incisa Walker, Li.it Lej). Ins. B.M. viii. p. 205. n. 11 (1^50) (Rio de Janeiro ; — Mus. 



Brit.) ; Bull., Trans. Zoo!. Hoc. Lnnd. ix. p. 605. n. 1 (187") (Rio de Janeiro) ; Druce, Biol. 



Centr. Amer., Lep. Het. i. p. 20. n. 1 (1883) (Chiriqui). 

 Sphinx lefebcrei (!), Boisduval, S^icc. Gen. Lep. Hit. i. p. 81. n. 15 (18'J5) (N. Friburgo ; =incisa ; 



" Gu^rin, Magaz. de Zonl." ex err.). 

 Sphinx le/ebdvei (!), Moschler, Verh. Zool. Bot. Ges. Wien. xxvi. p. 346 (1876) { = incisa ; Surinam). 

 Macrosila lefehvrei, Kirby, Cat. Lep. Het. i. p. 685. n. 1 (1892) (S. Amer.) ; Rothsch., Nov. ZooL. 



i. p. 541 (1894) (Aroa). 

 Dil.udia lefehrrci, Bonninghausen, Iris xii. p. 112. n. 2 (1899) (Rio de Janeiro). 



c??. Antenna of ? with ratlier obvious liasal rows of prolonged ciliae to the 

 segments. First segment of anterior tarsus externally with 5 or 6 long, but uot 

 stout, spines and some moderately long ones near the base. Segment 2 of palpus 

 rather longer than ordinarily in this genus. Pulvillus present, long and narrow. 



S . Tenth abdominal tergite long, gradually narrowed to a point, uot dilated 

 before end (PI. XXVII. f. 15) ; sternite also long, deeply divided, the lobes slender, 

 curved upwards, the segment differing in structure obviously from that of all the 

 other species oi Protoparce. Clasper strongly rounded apically, dorso-apical margin 

 not dilated, not bent inwards ; harpe (PI. XXXVIl. f 12) similar to that of 

 petimiae, the ventral process feebly curved ; the dentate lobe more or less 

 rectangular. Penis-sheath also peculiar in having two small teeth (PI. XXIX. f. 22). 



?. Eighth abdominal tergite rounded truncate, the sternite (PI. XX. f. 1) 

 larger than in the other sj)ecics, more strongly chitinised, rounded apically, with an 

 elongate, prominent, tubercle behind the mouth of the vagina. Antevaginal i)late 

 very different from that of the other species of Protoparce, being deeply rounded- 

 sinuate. 



Larva and chrysalis uuknowu. 



Ilab. Mexico to Southern Brazil. 



Mexican specimens are more russet, esjjecially on the underside. In the collec- 

 tion of Mons. Charles Oberthiir there is an individual from Gueriu's collection ; it is 

 labelled N. Fribnrgo ; the type was said (erroneously ?) to be from Bolivia. 



In the Tring Museum 8 c?c?, 7 ?? from: San Pedro Snla, Honduras 

 (Witkugel) ; Kio Dagua, Colombia (Rosenberg) ; Aroa, Venezuela ; Rio de Janeiro ; 

 Bahurn, Sao Paulo (Dr. Hempel) ; Paraguay. 



