ZOOLOGY OF FERNANDO NOEONHA. 



543 



with tawny, and with more numerous punctures than in 

 H. Icevipyga ; the punctures of the mesothorax and the lower 

 part o£ the m eta thorax larger ; the channel of the metathorax 

 narrower ; antennae black above, ferruginous below ; cheeks 

 bronzed. 



Closely allied to H. Icevipyga, but differs in colour and 

 punctuation. Appears to be a very common species. 



32. Haltctus atriptga, n. sp. 

 (S ? . Long. corp. 5 millim. 



Head and thorax clothed with whitish hairs, green,, very finely 

 punctured; head much bronzed; clypeus rather short, the tip 

 black; metanotum longitudinally striated in front; abdomen 

 bronzy black, more violet in the incisions ; antennsB black, ferru- 

 ginous beneath ; head and thorax dull bronzy green beneath ; 

 abdomen beneath shading more into ferruginous brown ; wings 

 hyaline, with brown nervures ; tegulse pitchy ; legs ferruginous, 

 the femora, and sometimes more or less of the tibisB, blackish. 



A small species, not closely allied to any other, and easily 

 recognizable by the strong bronzy colouring of the back of the 

 head. 



These Halicti were taken in the flowers of the Melons and the 

 Occalis, and play an important part in the fertilization of the 

 flowers in the island. 



33. Tarucus Hanno, StoU. 



Papilio Hanno, Stoll, Suppl. Cram. pi. xxxix. ff. 2, 2 B (1790). 



Rusticus adolescens Ilaniio, Hiibn. Samm l. ex. Schmett. i. 



Many specimens, taken between July 25 and August 31. 



The Brazilian form of this widely distributed and variable 

 species. It is generally larger than the more northern form of 

 the species, and stands in the British-Museum collection under 

 the MS. name of T. monops^ Zell. The specimens expand from 

 n\ to 23 millim. 



This little Blue was very common on liat and Main islands. 

 The Catachrysops trifracta, Butl., said to have been caught on 

 Bat Island by the ' Challenger ' Expedition, we did not meet with ; 

 and it seems possible that there was some mistake in the labelling 

 of this specimen, as the genus is only known from the East 

 Indies. 



