( 431 ) 



allies, and ure homolotjons to the similar spots of Ni/ceri/x. The narrow j'ellow 

 l)and of the hindwing of nearly even width, sometimes narrowed before middle, 

 more or less indicated below on disc as well as before abdominal margin. Fringe 

 of hindwing yellow above, less so below. SC^ and SC' of forewing not fused at end, 

 SC'' ending at costal margin a little before apes of wing. 



(?. Tenth sternite slender, hooks not strongly curved. Harpe somewhat 

 projecting at end. Penis-sheath very peculiar (PI. LIV. f. 13): apex of sheath 

 triangularly narrowed, right edge of this acuminate part with a row of teeth, apex 

 beset all round with similar teeth, this portion homologous to the whip of the other 

 species ; instead of the spines found at the left side in Sesia tantal/is, etc., we fiud in 

 E. sagi-a a very long thin process situated at the edge of the mouth of the sheath ; it 

 is a prolongation of the wall of the sheath itself, not a spine-like excrescence, and 

 is accordingly flat, with one side concave corresponding to the inner surface of the 

 sheath, as is the case with the whip of the other species. This process is homologous 

 with the tubercled ridge found in Ni/cert/x (compare PI. LIV. f. I — 5) ; it curves 

 in an irregularly raised spiral, and bears about twenty-five rather regularly dis- 

 tributed long branches, which are all situated on the same (external) side and are 

 of nearly the same length. The peculiar organ is generally visible without dissection, 

 projecting from the scaling of fan-tail. It is very brittle, breaking otf easily close 

 to the sheath. 



?. Vaginal orifice (PI. XLI. f. 1) shifted proximad and laterad, lying behind 

 a curved transverse fold. 



Huh. Cuba ; Mexico to Rio Grande do Sul. 



In the Tring Museum 30-odd specimens from : Cuba ; Honduras ; Chiriqui ; 

 Rio Uemerara; San Augnstin, Mapiri R., Bolivia, 3oU0 ft., ix. '95 (Stuart); 

 Miranda, Matto Grosso, i. '99 (Stuart) ; Paraguay (Dr, Bohls) ; Rio de Janeiro. 



368. Eupyrrhoglossum corvus. 



* Marniglossa corvus Boisduval, Cons. Lip. (^iidteM. p. 00 (IHTil) (Xiciiragua ; — coll. Charles Oberthiir) ; 



id., S2>ec. Gen. Lep. Hit. p. 361. n. 47 (1875) (B. Magdalena, Col. ; Nicaragua). 

 (?) Euj)ijrrho(jli)Ssuin ? rerulus Butler, Trans. Zoui. Sur. Loud. ix. p. 531. n. 2 (1877). 

 EitpyrTltoijIossiuii ceculiis, Druce, Liiol. Centr. Amer., Liip. jlet. \. p. 2. n. 2 (1881) (partim). 

 Kn/ii/rrhofflossum corvus, Kirby, Cat. Lep. Het. i. p. 630. n. 3 (1892) (Nicaragua). 



S. The s])ecies reminds us, in the colour and shape of the forewing, of Perigoma 

 lii.Kca f. re.ftitiita. Head and thorax without mesial crest. Antenna slender, not at all 

 clubbed, hook quite gradually narrowed ; end-segiueiit short, conical, less than three 

 times as long as basally broad. Underside burnt umber colour, shaded with 

 blackish olive ; breast, two series of spots on abdominal sternites (proximal 

 stcrnites also more or less the same colour in middle) and vestiges of spots at 

 the lateral edges of the abdominal tergites orange-buff, palpus below nearly the 

 same colour, rather more ochraceous-tawny, bases of wings and abdominal area of 

 hindwing ocliraceons-yellow. SC* and SC'' of forewing not fused at end, remaining 

 separate as in .Hfiyru. 



S. Tenth sternite with the hook much more suddenly curved than in the other 

 Hpecies. Penis-sheath with a long whip, which bears a number of tubercles, being 

 similar to the whiji found in the species of I'erigonia and JS[i/ci;ri/.c ; three heavy 

 apical bristles at the right side, preceded by a small number of irregularly-placed 

 tubercles ; no sjjines at the left side. 



JIal). Xicara^ua to Bolivia. 



