( 432 ) 



In the Triug Museum f i c? c? from: Hiiamba, Pern; Chanchamayo, Peru; 

 Cajon, Pern, x. (Garlei)p) ; Rio Songo to llio Snapi, Bolivia (Garlejip). 

 Several sjiecimeus in coll. Charles Oberthiir. 



CVIII. SESIA.— Typus : tanfahix. 



Sjjlihu; Linn.;, Si,.it. X„l. eJ. x. p. 403 (1758) (partim). 



.Sc-'.v'n Fabricius, Si/st. Eiil. p. 547 (1775) (partim ; type : tutilalm). 



Aelh>ims Hiiljner, Verz. lick. Sclaii. p. 131 (18-22) (type: t/lan) ; Grote, Prnc. Eiit. Sm: I'hilutl. v. 



p. 4-J (1H65). 

 Psithyros id., I.e. p. 13'2 (1822) (partim ; typo : steUulanini). 

 Macfoijloaaum, Swaiuson, Zool. Jlhuitr. iii. t. 132 (1823). 

 Mocnigloxsa, Wallier, Li.it Lrp. Ins. B. 31. viii. p. 88 (1856) (partim). 



(? ? . Head broad, without crest. Palpi shortly pointed together iu dorsal 

 view, smoothly scaled. Antenna imperceptibly or distinctly incrassate towards 

 hook, or filiform in ? ; hook slender, consisting of more than eight segments ; end- 

 segment elongate, but not filiform, varying in length. Spines of abdomen as in 

 Ci-phonodes, Macroi/los.sum, etc., spines of first series broad and short (PI. LXII. 

 f. 11) ; seventh sternite of ? broad, transverse, mesially sinuate, the entire apical 

 edge spinose (PI. LXIII. f. 6). Scaling of legs normal ; hindtarsus compressed, spines 

 shifted towards outer side, besides the four rows there are many intermediate spines, 

 all stout ; midtarsus with proximal sjjiues of fourth row thinner and longer than the 

 others, forming a comb ; mid- and hiiidmeruui strongly angulate. Distal margins 

 of wings entire ; SC* and H(J' of forewing fused at end ; SC- and W of hindwing 

 from angle of cell, R^ and M' close together, cross-veins obliqne. 



<?. Anal segment and clasper very cmistant ; tenth tergite hairy, divided into 

 two long lobes (PI. XLII. f. 8. 9), which are somewhat twisted and compressed, so 

 that the upper surface is narrower than tlie sides ; apex more or less rounded, with 

 a slight carina on the inner surface ending at a notch ; ventral edge concave before 

 end, the lobe more or less convex proximally of this shallow sinus. The sternite 

 (PI. XLII. f. 8. 9, Xr.) is also divided into two lobes, which are contiguous with the 

 dorsal lobes ; each is sharply jiointed and curved dorsad and laterad at end, the tip 

 lying close upon the lateral surface of the tergal lobe. The clasper is long and 

 narrow and curved ; the dorsal margin of same is so deeply concave that there 

 remains a wide gap between the clasper and the tenth segment ; no friction-scales ; 

 harpe vestigial, being indicated by an incrassation of the ventral edge of the clasper; 

 bristles of clasper very long. Penis-sheath with an ajiical whip and a series or 

 patch of heavy spines at the left side, and two to four apical spines at the right 

 side ; the whip is a j)rolougatiou of the wall of the sheath ; it is flat, somewhat 

 concave on the inner surface ; it is armed with some short, blnnt, tubercle-like spines, 

 and bears two apical sensory bristles. 



? . Vaginal plate small, triangular, minutely folded, its distal edge incrassate ; 

 vaginal orifice not quite mesial, but shifted towards the left side (PI. XLI. f. 2. 3) 



Larva not known ; on Rubiaceae. 



Chrysalis of iiititdlus clavipes shortly described by Edwards ; simihir in shape 

 to that of llacmorrhagia ihy.ihe. The chrysalis figured by Burmeister, Deacr. Rip. 

 Argent., Atlas t. 11 f 0, as that of titan certainly does not belong here. 



Hub. Tropical and Subtropical America, as wanderer northwards to (Jhio and 

 New England. 



Five species. 



