NOTES ON COCCID-INFESTING CHALCIDOIDEA — II, 243 



entirely filled with bristles, while beyond the radius is a clump of bristles. Hind 

 wings : length, 1'2 mm. ; breadth, "4 mm. ; a row of 4 minute bristles along the 

 middle of the submarginal cell, and none at the edge. 



Legs : pattern of coxae, etc., more strongly raised ; mid tibiae a little shorter ; 

 10 peg-like spines on the fourth tarsal joint ; comb of hind tibiae with 17-18 bristles, 

 those near the upper apical angle stouter, broader and wider apart ; first hind tarsal 

 joint distinctly shorter (7 : 9) than the corresponding joint of the mid legs, the pro- 

 portions of the hind tarsus being : — 14 ; 8 ; 7, 5, 8. 



Abdomen short, rounded posteriorly, two-thirds of the thorax ; ovipositor not 

 exserted. 



Length, over 2 mm. ; expanse, 4| mm. 



Type — $ in the British Museum. 



Gold Coast: Aburi, 2 $$ bred from Lecanium somereni, 23.xii.15. (Tf. H. 

 Patterson.) 



Genus Chiloneurus, Westw. 



Chiloneurus, AVestwood, Philos. Mag., iii, 1833, p. 343. 



Of the two species described below, one (C. afer, sp. n.) appears to occupy a more 

 isolated position in the genus on account of the extraordinary development of the 

 scape and club of its antenna. It does not range itself very near any of the North 

 American species keyed by IVIr. A. B. Gahan (Ann. Ent. Soc. Amer., vii, no. 3, Sept. 

 1914). The second species (C cyanonotus, sp. n.) resembles many of its congeners, 

 and is evidently close to C. dactylopii, Howard (Descr. N. Amer. Chalcid., Bull. Dept. 

 Agric. Ent., no. 5, 1885, p. 17), but the pedicel is longer in the African species, being 

 practically equal to the first three normal funicular joints (in dactylopii it equals the 

 first two. Like C. formosus, Boh. (Svensk. Vet.-Akad. Handl., ix, 1852, p. 183) 

 C. cyanonotus has the mesonotum parti-coloured, but in the genotype the scutellum 

 is entirely non-metallic and pale. In C. elegans, Dalm., (Svensk. Vet.-Akad. Handl., 

 xli., 1820, p. 151) the scutellum is also yellow and at least the first four funicular joints 

 are cylindrical. In wing pattern C. cyanonotus approaches C. obscurus, Silvestri 

 (Boll. Lab. Zool. Portici, ix, 1915, p. 297), but the antennae are quite difierent, 

 C. obscurus belonging to the section wdth a short club. 



This genus is one in which the sculpture and reticulation repay careful study for an 

 understanding both of specific differences and of the colour-play and refringence to 

 which the great beauty of these insects is largely due ; there is always one point 

 (i.e., directly above the cells) from which the refringent surfaces appear to be quite 

 dull. In specimens which have been gummed down, the flattening of the club is 

 generally exaggerated ; the breadth of this joint should therefore be taken from 

 a balsam mount under as little pressure as possible. 



Chiloneurus afer, sp. nov. (figs. 4-6). 



$. A nearly black species, notal and stemo-pleural thoracic surfaces concolorous ; 

 the flattened portion of the face and lower genae behind non-metallic, reddish. 

 Vertex, frons and thorax mainly very dull dark metallic green, with lines of blue at 

 the sutures ; pleurae dark blue ; the scutellum, from above quite mat, is in side 

 view metallic refringent. Propodeon and abdomen shining purplish or cupreous 



