NO. 2293. PARASITIC CHALCIDOID FLIES— TIMBERLAEE. 143 



luster; axillae and soutellum dull, opaque black except when viewed 

 at a strongly oblique angle from the sides or in front when a metallic 

 luster appears; metanotum, propodeum, and abdomen black with a 

 bluish or greenish luster; sides and underparts of thorax usually- 

 shining brov/nish yellow, but not rarely becoming entirely metallic 

 black, more greenish on the proplcura and rather strongly bluish 

 on the mesopleura, in the inteniiediate forms the dark coloration 

 appearing first on the posterior half of the mesopleura; tegulae ivory 

 white with their apical maigin black. Antennae black with a slight 

 bluish metallic luster on the scape and pedicel, the funicle duller, 

 often slightly brownish, the sixth joint varying to paler, not infre- 

 quently becoming white or yellowish white like the club. Wings 

 with a broad, brownish crossband across the middle, coterminous 

 with the band of darker colored cilia described above, wider on the 

 anterior margin, paler and narrower on the posterior margin, the 

 apical margm of band itself slightly convex and originating at the 

 apex of the stigmal vein. Legs variable, the front and hind tarsi 

 brownish or blackish, the middle tarsi and spur white or yellowish 

 white, except in the typical European form, which has the coloration 

 of the middle and hind tarsi reversed; in the paler forms the front 

 coxae and femora and the middle femora are yellowish brown, the 

 remaining parts, except the tarsi as noted above, dark brov/n or 

 blackish, often with a metallic luster on middle coxae and the hind 

 femora; in the darker forms the legs become entirely black or blackish 

 with a more or less distinct metallic luster, with the exception of 

 the white middle tarsi and spurs. Vestiture of head consisting of 

 white, scattered subappressed, short hairs most numerous on the 

 face and especially around the anteimal sockets; pronotum and 

 mesoscutum with a similar white pubescence, the axillae and scutelliun 

 with a darker colored pubescence; metapleura densely white pub- 

 escent, the coxae of middle and hmd legs similarly but considerably 

 less densely pubescent. 



Male. — Harclly differs from female, but the band on the wings is 

 not so deeply stained and the size averages smaller. Length, 1.45 

 to 1.83 mm. 



The following material aU seems referable to jimninius: 

 Series 1. One female reared from material of Pseudococcus citri 

 (Risso), probably issuing from a larva of Exochomus quadripustulatus 

 (Linnaeus), Palermo, Sicily, June, 1914 (H. L. Viereck), California 

 State Insectary No. 727B. Head metallic olive-green (R.), the upper 

 parts of thorax and the abdomen black, the pronotum and mesoscu- 

 tum with a greenish luster, the metanotum, propodeum, and abdomen 

 with a slight bluish luster; oral margin of face, underparts of thorax 

 and middle femora ochraceous tawny (R.); the front and middle 

 coxae similar beneath, but metallic bluish above, the front femora 



