374 Mr. H. Grose Smith on Two new 



being defined by scarcely more than colour differences). The 

 single example is from Siao-Lou, in the same district as the 

 locality whence came the females. 



$ . Head and thorax as in the female, the pale lines on the 

 thorax more reddish. Abdomen much more slender, bright 

 red ; first and second segments yellowish at sides and beneath ; 

 a large black subquadrate mark on the first segment above, 

 and the posterior margin of this segment and also of the third 

 is narrowly black ; an isolated line on the sides of the seventh 

 not reaching the margins, a thicker and shorter line on the 

 eighth reaching the anterior margin only, and a quadrate spot 

 on the ninth (also reaching the anterior margin) all black ; an 

 indication of a paler (yellowish ?) dorsal spot at the base of 

 the seventh, and the ninth and tenth also paler; margin of 

 the tenth shallowly excised in its middle. Appendages 

 reddish yellow, longer than the tenth segment; superior ap- 

 pendages subcylindrical, inserted distantly, somewhat divergent, 

 broader at base, the apices somewhat suddenly incurved and 

 blackish ; inwardly at the base is a short slender branch or 

 tooth inserted at nearly a right angle; inferior appendages 

 broader and slightly shorter, their tips incurved and obtuse if 

 viewed laterally. 



Wings tinged as in the female ; pterostigma somewhat 

 more reddish ; 4 antenodal cellules, 15-16 postnodal nervules 

 in the anterior wings. 



Length of abdomen 27^ millim. ; length of posterior wing 

 21 millim. 



This is the analogue of the European P. minium rather 

 than of P. tenellum. Both these species have a form of the 

 female in which the abdomen is nearly wholly black or 

 blackish ; and it seems quite possible that a form of that of 

 P. tinctipenne may be discovered in which the abdomen is in 

 part red. 



Ceriagrion melanurum y Selys. 



Moupin, three males, one female. 



LI I. — Descriptions of Two new Species of Butterflies from 

 New Britain. By H. Grose Smith, F.E.S., F.Z.S., &c. 



Tachyris maculata. 



Male. — Upperside. Both wings white : anterior wings with 

 costal and outer margins black, the latter rather broadly and 



