﻿Bomhytiidae (Bipiera) from Central Africa. 609 



great doubt to this species, A male from North Nyasa, 

 Wovwi River, December 24, 1909 {Dr. J, B. Davey); the 

 eyes touching, A female, wholly denuded, from North 

 Nyasa, October 1909 {Dr. H. S, Stannus). 



6. Systoechns melampogon, sp. nov. 



^ Ç . Length (6 specimens) 7 to 9 mm. ; length of proboscis 

 4 to 4^ mm. 



Near S. mixtits, Wied., but smaller and witli black hairs on the 

 face and hyaline wings. Head black, produced ; eyes of the ^ very 

 closely approximated, but not touching; frons and face in the ,$ 

 with the hairs entirely black, in the $ with some yellow hairs 

 intermingled on the frons and upper portion of the face. Antennae 

 black, the third joint not attenuated ; terminal bristle small, the 

 basal joint not distinct as in S. mixtus. Proboscis black, short. 

 Ground colour of thorax velvety black in the male, less velvety in the 

 female; it is densely clothed with erect, dark yellowish hairs of 

 equal length, without black bristles ; sterna and pleura with similar 

 hairs ; Wie hairs in the female are of a paler tint. Haltères whitish ; 

 squamae brown with yellow hairs. Scutellum dark red, black at the 

 base and in the middle. Abdomen black, sometimes reddish at 

 the sides; the hairs are of the same colour as on the thorax ; black 

 bristles well developed. Legs yellow, the basal part of the femora 

 a little blackened in the male : coxae and trochanters black ; tarsi 

 black at tip ; the pubescence and hairs are white, the bristles 

 yellow, also those on the hind femora. Wings wholly hyaline, with 

 a small yellowish patch at the base ; veins brown, the first black ; 

 basal comb smull, mostly yellow, with a few black bristles. 



Type ^ and two other specimens from Southern Nigeria, 

 Oshogbo, February 27 and 28 {J. J. Simpson). Type Ç 

 and another specimen from the same locality and taken by 

 the same collector, February 28, 1910, and March 1, 1910 ; 

 another $ from North Nyasa, Fort Hill, October 26, 1909 

 {Dr. J. B. Davey). 



7. Systoechns ctoioptcrus, Mikau (1796). 



A single Ç specimen from North Nyasa, on the road 

 fiom Karonga to Fort Hill, near Lufira River, May 30, 

 1909 {Dr. J. B. Davcy), which agrees very well with our 

 South European specimens. 



3. Anastoechus, Osten-Sacken (1877). 

 This genus has not been previously recorded from 

 Tropical Africa ; the species have the same habits and 

 importance as tliose of the preceding genus. 



