88 PROCEEDINGS OF THE \ \ll<>\ I/, MUSEUM. vol. .",8. 





ERIXESTUS WINNEMANA, new species. 



Female. Length 1 mm. Above deep purple, the parapsidal areas, 

 the abdomen, face and checks greenish-blue; antennae brown, scape 

 and pedicel testaceous; lace smooth, polished, vertex back of ocelli 

 finely roughened; median area of mesonotum finely transversely 

 lineolate, parapsidal areas, axillae and postscutellum before cross 

 furrow indistinctly reticulate; back of cross furrow smooth; meta- 

 thorax smooth, medially with a transverse carina, back of this a 

 median longitudinal carina which at apex of metathorax divides and 

 rims laterally: legs testaceous; abdomen smooth, polished. 



Fig. 1.— Erixestus vvinnemana, adult Fig. 2.— Ekixestus vvinnemana, antenna 



1 i hale. of female. 



Male. -Length 1 nun. Similar to the female, the antennae more 

 hairy. 



Type-locality. — Plummer's [sland, Maryland. 



Ten specimens bred from the eggs of CaUigfapha bigsbyana, col- 

 lected by Mr. E. A. Schwarz; also twelve paratypes bred from the 

 eggs of CaUigrapJia scalaris collected by Mr. Frederick Knab on the 

 Virginia shore of the Potomac River opposite Plummer's Island. 



Type. Cat. No. L2916, U.S.N.M. 



The specific name is an Indian name applied to the island and means 

 •• beaut iful island." 



The insect so completely fills the parasitized egg that it seems 

 impossible for it to be anything but a primary parasite. 



Family ENCYRTIDJE. 



Subfamily I'.N < V RT1 N . I :. 

 Tribe MIRINI. 



PSYLLEDONTUS, new genus. 



Plead not thin anterio-posteriorly; not distinctly lenticular: lateral 

 ocelli away from the margins of the eyes; the eye- pubescent: an- 

 tenna' inserted d<>-e to the mouth, the funicle 5-jointed, no ring 

 joint apparent, the antennae similar in both sexes; axilla' contiguous; 

 marginal vein punctiform; post-marginal not developed; marginal 

 fringes of wings >hort : mesonotum strongly metallic; abdomen above 

 Ihit , not -i rongl} pubescent . 



