A Catalogue of the Lepidoptera of Hainan 531 



Interior, November, one ? , December, one ? ; Nodoa, August, 

 one $ ; Hoihow, December, three $ $ , four $ ? . 



Teeias. 



We have received three species of Terias from Hainan, libyihea, 

 hecabe, and blanda. The form described by Moore as hainana is a race 

 of laeta, and the other forms described by Moore as subdecorata, arcuata, 

 and attenuata appear to belong to hecabe. We cannot identify any 

 blanda form as previously received from the island. 



It is often difficult to separate some forms of hecabe from blanda, 

 but blanda may be recognized, as stated by Fruhstorfer in Seitz, by the 

 presence of " three streaks on the undersurface of the fore wing." This 

 really means three marks in the cell, the third mark being a dot at the 

 base. This dot is often obliterated or is so vestigial that it cannot be 

 seen with certainty. In such cases we have found that a character on 

 the hind wing below is usually constant, viz., a series of intranervular 

 marginal dots. Sometimes these are absent but in this case the basal 

 cell-dot on the fore wing is probably well marked, at least in the speci- 

 mens we have examined. We must dissent from the description of the 

 genitalia given by Fruhstorfer in Seitz, ix, p. 168. 



Although some form of blanda may show the valve armed with 

 "a corona of four sharp teeth," our own dissections show a distinct 

 bifurcation at the distal edge, one lobe being much larger than the 

 other and irregularly notched. There is a finger-like process on either- 

 side. In hecabe there is only a short pointed process at the distal edge, 

 with two finger-like processes on one side and two short and sharper 

 processes on the other. 



57. Terias libythea Fbr. 



Pap. libythea, Ent. Syst. Suppl, p. 427 (1798). 



f. vera, libythea. 



T. drona Holl. (nee Horsf.), Trans. Amer. Ent. Soc, xiv, p. 121 

 (1887). 



Five Finger Mountains, May, one $ ; Interior, no date, one $ , 

 September, one ? . 



These specimens are not different from Chinese ones, 

 f. aest. rubella Wall. 



Trans. Ent. Soc. Loncl, p. 323 (1867) (Calcutta). 



T. hainana Moore, Proc. Zool. Soc, p. 700 0-878) (Hainan). 



