17T 



ON A BRACONID PARASITE OF GLOSSINA. 

 By Rowland E. Turner. 



Coelalysia glossinophaga, sp. nov. 



$ Testacea ; capite nigro ; mandibulis fusco-ferrugineis ; scapo f usco ; flagello 

 nigro, articulis 40, articulis 15 — 28 albis ; tarsis articulo apicali fusco ; terebra, 

 abdomine paullo longiore, nigra ; alis hyalinis, iridescentibus, venis nigris. 



(J. Feminae similis ; flagello omnino nigro ; segmentis abdominal ibus tertio 

 apice, quarto et sequentibus nigris. 



Long. $c?» ^ mm., terebrae long. 2 mm. 



J. Fourth joint of the antennae fully half as long again as the third ; all the 

 joints hairy. Clypeus subtriangular, narrowly rounded at the apex ; mandibles 

 very broad, with two apical teeth, the inner one acute, the outer one broad and 

 blunt. Smooth and shining ; the face below the antennae very minutely punctured ; 

 parapsidal furrows deep, finely crenulated, nearly reaching the posterior margin 

 of the mesonotum ; scutellum with a deep depression at the base which extends 

 almost to the middle, the depression very broad and divided in the middle by a 

 high and very narrow carina ; dorsal surface of the median segment only a little 

 longer than the postscutellum, very short, distinctly margined posteriorly, finely 

 punctured, with a median longitudinal carina ; the surface of the posterior 

 truncation with a median area which is finely longitudinally striated and enclosed 

 by carinae converging towards the apex. First dorsal segment irregularly longi- 

 tudinally rugulose, distinctly longer than the apical breadth, much broadened 

 from the base, with a blunt tubercle on each side before the middle. Sheaths of the 

 ovipositor with sparse long hairs ; the legs also thinly clothed with hairs. Second 

 abscissa of the radius more than half as long again as the second transverse cubital 

 nervure ; the second cubital cell distinctly pentagonal, the recurrent nervure 

 received close to the base of the cell. 



(J. As in the female, except in the colour differences of the antennae and abdomen. 

 The antennae are broken at the extreme apex in the only available specimen. 



Gold Coast : Northern Territories (J. J. Simpson). 



Bred from pupae of Glossina. 



Species of this genus are described by Szepligeti in the genus Idiasta, and by 

 Cameron and Enderlein in the genus Alysia. From the former this seems to be 

 separated by the pentagonal second cubital cell, from the latter by the proportions 

 of the third and fourth joints of the antennae. 



The species included in the genus seem to be : (1) Coelalysia lutea, Cam., 1911 ; 

 (2) Idiasta nigriceps, Szep., 1911 ; (3) Idiasta bicolor, Szep., 1911 ; (4) Alysia cameru- 

 nensis, Enderl., 1912 ; (5) Alysia goniarcha, Cam., 1912 ; (G) Alysia maculiceps, 

 Cam., 1912. 



All these Ethiopian species are very closely allied, but differ in detai's of colour 

 and the number of joints of the antennae of the female, and in the colour of the head 

 and abdomen of the male. I have seen only the male of bicolor and the male of 

 lutea. 



