INSECT FAUNA RAINBOW. 99 



Head occiput black, clothed with black hairs ; forehead black, 

 with long, coarse black hairs or bristles ; cheeks, white ; eyes, 

 rich mahogany-brown ; occilli, three ; antennae, black. Thorax 

 grey ; two dark longitudinal bars extend from anterior extremity 

 of pro- to near posterior extremity of meta-thorax ; few rather 

 long coarse black hairs; sides of a lighter grey colour, and 

 furnished with a few long coarse black hairs. Abdomen, dark, 

 with lateral patches of a light grey colour ; posterior extremity 

 black ; dorsal surface furnished sparingly with short black hairs ; 

 ventral surface grey, and sparingly furnished with short black 

 hairs ; anus, black. Breast black, with few short black hairs. 

 Legs black, clothed with black hairs, and armed with few short 

 strong spines. Wings covered with hair-like scales, semi- 

 transparent, with brassy reflections ; veins, black. 



A single specimen. 



By request I have named this species after Captain Mostyn 

 Field, R.N., Captain of H.M.S. "Penguin," as a permanent 

 tribute to his courtesy, and a mark of the sense of indebtedness 

 felt by the members of the Expedition for assistance in many 

 ways. 



HEMIPTERA. 



A species of Halobates was taken by one of the party on a 

 single occasion from a pool between tide-marks. On one occasion 

 at dusk Mr. Hedley saw some Halobates in one of the saltwater 

 pools which at high tide appear in the centre of the island, but 

 failed to secure any. Lice were very common and afflicted the 

 natives very much. 



ORTHOPTERA. 



Although the Libellulidje are not represented in the collection 

 from Funafuti, Mr. Hedley remarks that a large dragon-fly was 

 a conspicuous object, flashing across the more open spaces in the 

 woodland on sunny days. In the Gilbert Group the three follow- 

 ing species are common : Anax guttata, Pantala flavescens, 

 Trithemis bipunctata.* 



So far as the collection under discussion is concerned, this Order 

 is represented by the following species : 



FAMILY LACERSTIDuE. 

 Concephalus ensiger(f) Har One specimen. 



* Geogr. Journ., vi., 4, 1895, p. 349. 



