( 82 ) 



imiiited. Uorso-ii]iical niar;,'iii <if (rlaspiT bi'ut inward ; the dentate upper portion of 

 tlio harpe not strongly developed dorsad and distad, its margin slanting towards 

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

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



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

 vaginal jilate with a rather long triangular lobe, the ape.x of which is rounded 

 and pro.ximally produced into another, almost similar, lobe or ridge, which 

 points proximad forming the slanting roof of a transverse groove in front of the 

 antcvaginnl plate. 



Larva and chrysalis not known. 



Ilab. Mexico to Costa Rica ; Venezuela ; most likely also in Colombia. 



In the Tring Museum 14 SS, 16 ?? from: Mexico; Honduras; Aroa, 

 Venezuela. 



5ii. Protoparce lefeburei. 



Sphinx hfrburei Gu('rin, Iconoqr. Rtgiie An'nn., Inf. p. 494 (1S44) (Bolivia). 



*MacroKih inc/sa Walker, List Lep. Ins. B. }[. viii. p. '20,';. n. 11 (1H5G) (Rio de Jaueiro ;— Mus. 



Brit.) ; Butl., Trans. Zool. Soc. Lmul. \x. p. 6U5. n. 1 (1877) (Rio de Janeiro) ; Diuce, Binl. 



Ceiili: Amer., Lep. Ret. i. p. 20. n. 1 (1883) (Chiriqiii). 

 Sphinx hfrbrrei (!), Boisduval, f^pcr. Gen. Lep. Hit. i. p. 81. n. l.'j (1805) (N. Friliurgo ; =incisa\ 



" Gu6tm, Magriz. tie Ziml." ex err.). 

 Sphin.T lefebovei (!), Moschler, Verb. Z'lol. But. Ges. Wien. xxvi. p. 346 (187G) ( = iiirim ; Surinam). 

 Mairosila lefeberei, Kirby, Cut. Lep. Hct. i. p. (i8u. n. 1 (1892) (S. Amer) ; Rotlisch., Nov. Zixil. 



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

 Diludiii hfebreei, Bonninghausen, Iris .\ii. p. 112. n. 2 (1899) (Rio de Jaueiro). 



(??. Antenna of ? with rather obvious basal rows of prolonged ciliae to the 

 segments. First segment of anterior tarsns externally with 5 or (} long, but not 

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

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



<J. Tenth abdominal tergite long, gradually narrowed to a point, not dilated 

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

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

 other species of Protoijarce. Clasper strongly rounded apically, dorso-apical margin 

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

 /letu/iii/i', the ventral process feebly curved ; the dentate lobe more or less 

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



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

 larger than in the other s]iecies, more strongly chitinised, rounded apically, with an 

 elongate, prominent, tubercle behind the mouth of the vagina. Antevaginal plate 

 very different from that of tlie other species of I'lOtoparce, being deeply rounded- 

 sinuate. 



Larva and chrysalis unkuowu. 



Hub. Mexico to tSouthern Brazil. 



Mexican sjiecimeus are more russet, especially on the underside. In the collec- 

 tion of Mons. Charles Oberthiir there is an individual from Gut^riu's collection : it is 

 labelled X. Friburgo ; the type was said (erroneously 't) to be from Bolivia. 



In the Tring Museum 8 cJcJ, 7 ?? from: iSan Pedro Sula, Honduras 

 (Witkugel) ; Kio Dagua, ( 'olombia (Rosenberg) ; Aroii, Venezuela ; Rio de Janeiro ; 

 Bahum, Sao Paulo (Dr. Hemj>el); Paraguay. 



