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NOTES ON COCCID-INFESTING CHALCIDOIDEA.— III. 



By James Waterston, B.D., B.Sc, 

 Imperial Bureau of Entomology, London. 



Like the preceding instalment, this part deals mainly with species bred on the 

 West Coast of Africa. I have to thank Dr. L. Masi, of Genoa, for fig. 4, illustrating 

 the wing base of Eusemion italicum, Masi. 



Coccidoxenus distinguendus, sp. nov. 



$. A blackish-brown species ; vertex very dark metalhc blue between the 

 punctures, but narrowly gleaming in the front of the occipital edge. Anteimae 

 pale brownish, the funicle a little infuscated dorsally towards the apex, the sixth 

 joint darker and the club distinctly so. Thorax : mesonotum metallic dark blue- 

 green, dully shining before the scutellar suture, the scutellum from above dull, 

 nearly black medianly, but the sides are shining metallic (see notes on sculpture). 

 Propodeon and abdomen non-metallic. Wings like those of C. obscuratus, but the 

 median cloud is darker, and the apex also beyond the lunar clear band is clouded, 

 though not so darkly as the middle of the wing. Legs, from coxa to apex of femur 

 blackish brown, the knees narrowly paler (very obscurely so in hind legs), fore 

 tibiae pale, a little infuscated basally and along the dorsal and ventral edges, mid 

 and hind tibiae dark with the apices broadly paler ; tarsi pale, the fifth joint, 

 claws, and empodia of all the legs a little darker. 



Fig. 1. Coccidoxenus distinguendus, sp. n., $ ; mandible and details of ueuratiou. 



Head (9 : 8). Eyes occupying five-ninths of the depth, seen from in front, 

 large, with the orbits for one-quarter of the depth of the head below the anterior 

 ocellus parallel (whereas in coclops and obscuratus the orbits diverge from that 

 point). Toruli very distinctly below the base line of the eyes, separated by just over 

 their length from the mouth-edge and one and a half lengths apart. Intra-torular 

 area and clypeus flat. Puncturation moderate, coarsest along the orbits and on the 

 vertex but much finer than in obscuratus ; between the orbits, th6 anterior ocellus 

 and the toruli, the surface is unpitted though rough ; towards the genal keel the 

 integument may be described as coriaceous. 



Mouth-parts. Labrum almost as in obscuratus but a little narrower (1 : 5). 

 The epipharynx (2 : 3) is oblong in both species, but longer (6 : 7) in obscuratus. 

 Mandibles (fig. 1) of the same proportions as in obscuratus, tridentate, the teeth short 



{C357) Wt.P12/109. 1.000. 5.17. B.&F.Ltd. Gp. 11/1. a 



