LICHTENSIA. 33 



form of the ovisac, but may be readily separated from 

 Signoretia by the long caudal filaments of the male, 

 and the curious, anteriorly bifurcate character of the 

 coronet of the male puparium. Were it not for the 

 distinctive features of the male and its puparium it 

 would be impossible to separate the females of the 

 respective genera. 



This comparatively small genus, consisting of about 

 seven or eight species, is represented in Australia, 

 Brazil, Mexico, Egypt, and Europe. L. viburni, 

 Lichtenstein, is the only known European species, and 

 forms the type of the genus. The most remarkable 

 species is L. lutea, Cockerell, the ovisac being of a 

 silky texture, and of a beautiful golden yellow colour. 

 It was discovered by Mr. Cockerell at Vera Cruz, 

 Mexico, in 1893. 



LICHTENSIA VIBUENI (Lichtenstein, MS., Signoret). 

 (PL XLI, figs. 1-11). 



Lichtensia vibnrni (Lichtenstein, MS.), Signoret ; 



Essai, p. 204, pi. ii, figs. 7, 7 a. 

 Lichtensia viburni (Signoret), Douglas; Ent. Mo. 



Mag., vol. xxiv, p. 167 (1887). 

 Lichtensia viburni (Signoret), Newstead; Ent. Mo. 



Mag., s.s., vol. vi, p. 165, figs. 1-3 (1895). 



Adult female immediately prior to the formation of 

 the ovisac (figs. 2, 3), dusky lemon-yellow, or greenish 

 yellow, and either with or without irregular, wavy, 

 dusky markings on each side of a clear median space ; 

 form elongate with the extremities equally rounded, 

 and the margin set with fine equidistant white hairs ; 

 under side paler. Antenna (figs. 4, 4 a) of eight 

 joints, of which the third is the longest; formula 

 3, 4, 2, 8 (5, 6), 7, 1, or 3 (4, 5), 2, 8, 6, 7, 1 ; the first 

 joint in all cases is much the widest, the longest hair 

 is on the second joint. Legs (fig. 5) very large, and 



VOL. IE. 3 



