CHALCIDOIDEA BRED FROM GLOSSINA IN THE GOLD COAST. 179 



much redder and darker apically, while in profile the frons from the insertion of the 

 antennae to the extremity of the large process is straight. There are other 

 differences in the propodeal sculpture. From D. ehrhorni the new species differs 

 in the colour of the antennae and in the profile — particularly in the size of the eye 

 '(see fig. 1). 



For these drawings I desire to express my cordial thanks to Prof. F. Silvestri, 

 who has obligingly compared the types of inflexus and ehrhorni with one another, 

 finding, as he notes, that in the Glossina parasite the frontal processes are longer 

 and the sculpture of the dorsum coarser. 



Chalcis amenocles, Walker. 



Chalcis amenocles, Walker, List. Hym. Brit. Mus. Chalcid, i, p. 84, 1846 (Sierra 

 Leone). 



The following three series were received from the Gold Coast, N. Territories 

 (Dr. J. J. Simpson) :— (a) 7 <J<J, 9 $$, without data, 1916 ; (b) 2 ?$, Larabanga, 

 1-8. vii. 1916 ; (c) 1 <J, 3 $$, Yapi, vi.1916. There is also a single <J sent without 

 data by Dr. Simpson amongst a miscellaneous lot of captured insects. The $§ 

 range in size from about 4 mm. long, with an expanse of 5J mm., to 5 J mm. long, 

 with an expanse of 8 J mm. The <$$ are 4J-4J mm. long, with an expanse of 

 *6J mm. or over. 



I have placed the above examples of Chalcis together and under the name 

 amenocles with some hesitation. In the amenocles group several more or less distinct 

 forms have already been described from South Africa, e.g., capensis, Cam. (1905), 

 spilopus, Cam. (1905), transvaalensis, Cam. (1911), and varipes, Wlk. (1871). These 

 seem to me to differ very little, except in size, from one another, but it has not been 

 possible to make a critical examination of the mouth-parts in each case. Until 

 this has been done the status of these forms must remain undecided. 



