668 dr. a. g. btjtlbr on lepidoptera from [nov. 7, 



128. Papilio constantinus. 



Papilio constantinus, Ward, Ent. Mo. Mag. viii. p. 34 (1871) ; 

 Afr. Lep. p. 1, pi. 1. figs. 1, 2 (1873). 

 Lake Mweru. 



129. Papilio meeopb. 



Papilio merope, Cramer, Pap. Exot. ii. pi. cli. A, B (1779). 

 cJ, Rhodesia, Lake Mweru, June 11, 1892. 



130. Papilio erinus. 



Papilio erinus, GTray, Cat. Lep. Ins. B. M. i. p. 35, n. 127 (1865). 

 Lake Mweru ; Zoniba, December 1892 and January 1893. 



The HESPERiiDiE in the collection are numerous, and so many 

 species have been described of late years, especially by Herr Plotz 

 and Monsieur Mabille, that it has been no light task to work 

 carefully through the accumulation of literature and decide what 

 species are new to science. That the descriptions of Plotz are not 

 easy to follow is a fact, I think, pretty generally admitted, and 

 those who have attempted to recognize his species have not always 

 succeeded in making them evident to their successors. For 

 instance, Herr Eibbe ('Isis,' 1889, p. 261), after quoting the descrip- 

 tion of Pampliila ahrendti, observes : — " It is very difficult, from 

 this short description of Plotz's, to identify P. ahrendti. I have 

 therefore had the species figured, by which figure the identifica- 

 tioa can be gained witli certainty." Unhappily, this is far from 

 being a fact, as the figure is a blotchy phofolithograph, and 

 might stand for any Hesperiid of the same size ; in short, it is 

 utterly useless as an aid to identification. It is a pity that so 

 little work equal to that of Prof. Aurivillius has been produced 

 in Germany, and so little as lucid as that of the late Monsieur 

 Gueuee in France. One of the chief difficulties in the identifica- 

 tion of Mabille's Hesperiidae consists in tbe fact that his new 

 species are frequently placed in the wrong genera. 



131. Tagiades plesus. 



Hesperia flesvs, Eabricius, Spec. Ins. ii. p. 135, n. 621 (1781). 

 Zomba, December 1892 and January 1893. 



132. Sarangesa motozi. 



Pteryqospidea motozi, "Wallengren, Kongl. Svensk. Vet.-Akad. 

 Handl. 1857, p. 53. 



Lake Mweru ; Zomba, January 1 893. 



133. Saeangesa motozoides ? 



Sarangesa motozoides, Holland, Ann. & Mag. Nat. Hist. ser. 0, 

 vol. X. p. 288, n. 9 (1892). 

 Lake Mweru. 



