ART. 2. ICHNEUMON-FLY GENUS METEORUS MUESEBECK. 37 



distinct; in color the species is extremely variable, but is usually 

 honey yellow, more or less varied with black on the propodeum and 

 the abdomen; the first tergite always has the petiole pale, and the 

 postpetiole usually blackish, especially laterally. 



Distribution. — Europe; New England States; New Brunswick 

 and Nova Scotia, Canada, 



Hosts. — Euprodis chrysorrhoea Linnaeus; Hemerocampa leucos- 

 tigma Smith and Abbot (Muesebeck) ; Notolophus antiqim Linnaeus 

 (Muesebeck). In Europe Schmiedeknecht ^^ has recorded this 

 parasite from Laria v-nigrurn Miiller; Asteroscopus sphinx Hufnagel; 

 Bomhyx ne^i stria lumnaeus; B. Zaiie.s/m Linnaeus; Triphaena proniiha 

 Linnaeus; Geometra papilionaria Lmnaeus; Eupithecia exiguata Hiib- 

 ner; and Argyresthia nitidella Fabricilis. It is quite probable that 

 some of these records are the result of a misidentification of the 

 parasite. 



A large amount of material, both European and North American, 

 reared at the gipsy-moth parasite laboratory, at Melrose Highlands, 

 Massachusetts, furnishes the basis for the above notes. The species 

 was originally introduced into Massachusetts to assist in the control 

 of the brown-tail moth; and at present its distribution on this 

 continent is apparently coextensive with that of its primary host. 



29. METEORUS EUSCHAUSIAE, new species. 



Closely related to acronyctae, and frequently reared from the same 

 collection of larvae. It can readily be separated, however, as pointed 

 out in the description of acronyctae. 



Female. — Length 5.3 mm. Head transverse; face slightly broader 

 at clypeus than long, finely transversely sculptured; malar space 

 shorter than basal width of mandible; last segment of maxillary 

 palpi distinctly longer than the preceding segment, sometimes much 

 longer; clypeus prominently convex; temples strongly receding; 

 antennae 34-segmented in type; first flagellar segment less than 

 three times as long as thick; vertex and temples polished; ocell-ocular 

 line scarcely longer than diameter of an ocellus; thorax stout; mesono- 

 tal lobes finely punctate, shining; rather flat; parapsidal grooves 

 distinct, but not deep; the lateral lobes not meeting posteriorly, 

 separated at apical margin of scutum by a broad, roughened, de- 

 pressed area; disk of scutellum very prominently elevated; propodeum 

 sloping gradually from base to apex, regularly rugoso-reticulate ; 

 propleura punctate, finely crenulate in the drepession, shining; 

 mesopleura smooth and shining, very weakly punctate below, with- 

 out a distinct crenulate furrow; metapleura only weakly punctate, 

 shining; first abscissa of radius about two-thirds the length of the 

 second; last abscissa of radius reaching margin of wing much before 



1" lUus. Wochnschr. Ent., vol. 2, 1S97, pp. 221-223. 



