42 PROCEEDINGS OF THE NATIONAL MUSEUM vol.78 



Tegulae yellow. Metanotum, propodeum, and abdomen black. 

 Prosternum yellowish. Prepectus yellow with more or less blackish 

 suffusions. Mesoepisternum mostly black. Metapleura black. Hind 

 coxae mostly black, their apices yellow; apical tarsal joints fuscous, 

 remainder of legs yellow with faint traces of dusky in parts. 



Antennae somewhat thicker than usual. Pedicel short, as wide 

 as long and one-half as long as the first funicle joint. First funicle 

 joint the longest, not quite twice as long as wide; second and third 

 successively slightly increasing in width and decreasing in length, 

 the latter only slightly longer than wide. First club joint slightly 

 wider than long and not quite as long as the third funicle joint; 

 second like the first ; third as long as wide (fig. 30) . 



Mandibles as shown in Figure 183. 



Fore wings hyaline; cilia fine and short; a well developed basal 

 hairless streak extending obliquely distad. Marginal fringe short. 

 Marginal vein appreciably shorter than the submarginal. 



Scutellum large, slightly wider than long (1:10) and not quite 

 as long as the mesoscutum. Ovipositor short, not reaching to the 

 apex of abdomen. 



The setae on the thorax are small and inconspicuous yet easily 

 detected on tag-mounted specimens. In cleared balsam-mounted 

 specimens, three setae are plainly seen on the anterior margin of each 

 axilla in the majority of specimens; in a few specimens only two 

 setae occur. 



Basitarsus of the middle legs about as long as the succeeding joints 

 united; tibial spur plainly shorter than the basitarsus. 



Length 1.2 mm. 



Male. — ^Very similar to the female except for sexual differences, 

 antennal differences, and more extensive blackish coloration, espe- 

 cially on the mesoscutum. Antenna as shown in Figure 149. 



Type.— C?it. No. 42101, U.S.N.M. 



Described from 35 females and 20 males (holotype, allotype, and 

 paratypes) reared from Eriococcus species on Acacia, Taronga Zoo- 

 logical Park, Sydney, New South Wales, collected by H. Compere, 

 October 19, 1927. In addition to the type specimens about 1000 in- 

 dividuals were obtained from Ericoccus that infested several small 

 twigs. The large scales were densely packed with the Goccophagus, 

 each scale containing a great number of parasites. Scales from 

 which the parasites issued were perforated with from 10 to 25 exit 

 holes. 



