50 



by Dr. R. C. L. Perkins, M.A., D.Sc, Jesus College, having 

 been captured by him and J. C. Kershaw, Esq. : — (i) April 16 

 — Makik-i, below 400 ft., 38 specimens of Odyncrns nigri- 

 pennis: (ii) May 3 — Lowlands near coast east of Honolulu, 

 21 O. nigripennis with the following species belonging to the 

 same colour-group — 1 O. montanus, 1 ioptcryx, 6 Nesodynerus 

 rudolpJii; 12 examples, divided among 3 species, of another 

 colour-group, characterized by white bands, were also cap- 

 tured, together with 12, also divided between 3 species, of 

 a third colour-group: (iii) May ic — Palolo, forest, 1,200— 

 1,500 ft., 19 examples and two species of a colour-group 

 characterized by dull red marks on the abdominal segments ; 

 of the group resembling O. nigripennis, 15 specimens of 

 ( \iynerns, divided between three species, and, with the same 

 colouring, 6 Crabronidae (Fossores) divided between 2 species ; 

 5 examples of an Ichncumonid entering the last colour-group 

 were also captured. 



The whole of these 137 specimens arranged in their groups 

 and in three divisions, according to date and locality, have 

 been added to the bionomic series. They are of the utmost 

 importance, for they prove that the members of the colour- 

 groups into which the Hawaiian Wasps and their mimics may 

 be divided do actually fly together and may be caught on 

 the same day and in the same place. They also give very 

 safe indications as to the dominant species in the groups. 

 The collection was exhibited at the Entomological Congress, 

 and a complete analysis of the captures is published as a note 

 to Dr. Perkins's paper in the Trans. Ent. Soc, 191 2 (p. 682 n.). 



A hundred and fifteen butterflies and 17 moths from 

 Stonecutter's Island, Hongkong (191 2), were presented by 

 the captor, Capt. R. A. Craig. The island is situated about 

 a mile from the mainland, and it will be of great interest to 

 study the collection in order to ascertain whether any effects 

 of isolation are to be detected in it. The Papilios include 

 an interesting series of 4 o* and 6 ? s of P.polytes. All the ? s 

 were of the o^-like form cyrus. The model of the commonest 

 mimetic form of the ? , the polytes f., was entirely wanting 

 from the collection — its absence being accompanied by the 



