NORTH AMERICAN HYMENOPTERA. 295 



IVIicroplitis terminatus n. sp. — Length 5 mm. % f. Black; scape, 

 labrum, mandibles, palpi, tegulaj, legs (except posterior coxae), ventrum aud pos- 

 terior half with more or less of margins of anterior half of dorsum of abdomen 

 testaceous. Antennae brownish, fuscous at tip, reaching slightly beyond thorax. 

 Mesonotum opaque, punctate, with lobes well developed. Scutellnm opaque, 

 punctate. Metauotum coarsely reticulate, with prominent median and lateral 

 carinse. Tergum of first abdominal segment reticulate, with longitudinal me- 

 dian excavation. Tergum of second segment smooth and shining on anterior 

 angles ; otherwise with rather thick punctures. Eemaining terga smooth. 

 Wings subhyaline; veins yellowish brown, darker apically ; stigma dark brown, 

 with lighter spot on inside. Ovipositor concealed. 



Described from live Illinois specimens in the collection of the 

 American Entomological Society. One of these was labeled Micro- 

 gaster terminatus, Cresson MS., and I have adopted the specific name 

 thus proposed. 



Apailteles hallii (Pack.) — Microgaster liallii Packard, Am. Nat. vol. xi, p. 

 52. 1877. — Length 3 mm. Black; antenna; piceous; mandibles aud palpi dark 

 reddish brown. Legs brownish black, posterior tibiae slightly paler. Mesonotum 

 slightly shining, finely punctate. Scutellum shiuing, nearly smooth. Terga of 

 first and second abdominal segments shining, scabrous; remaining terga smooth 

 and shining. Tegulae piceous. Wings hyaline, veins brownish black, lighter 

 apically ; stigma dark yellowish brown. 



Described from one of the original type specimens in the collection 

 of the American Entomological Society. The specimen had three 

 labels upon it: the first being "Polaris Bay, June, 1872, Bessels ;" 

 the second, " Mlcroyaster Hallii Pack. ;" and the third, " From Dr. 

 Packard." The first and second I judge to be in Dr. Packard's 

 handwriting, and the third in that of Mr. Cresson. The specimen 

 at hand is somewhat imperfect, and the legs and wings are so com- 

 <^.ptessed that I am not certain of the sex. 



Dr. Packard describes the cocoon as of " the usual cylindrical 

 shape ; white." 



Apaiitele!« lunatus (Pack.) — Microgaster lunatus, Packard, Proc. Bost. Soc. 

 Nat. Hist. vol. xxi, p. 28. Apanteles lunatus Riley, Am. Nat. vol. xvi, p. 680. — 

 Length 3 — 3.5 mm. % 9 • Black, palpi whitish or light brown. Antennae pice- 

 ous, almost as long as body. Legs red, coxae black, posterior femora and tibiae 

 with dusky tips, tarsi also more or less dusky. Mesonotum, with scutellum, 

 densely con fluently punctured. Metauotum indistinctly reticulate, without 

 carinae. First and second abdominal terga rugosely punctate, and extreme base 

 of third also slightly sculptured ; remaining terga smooth and shining. Wings 

 hyaline, iridescent ; veins and stigma brown. 



Described from one of the original type specimens bred from Pa- 

 pilio asterias by Dr. Riley ; five others bred in Illinois from the 

 same species by Prof G. H. French ; and two Massachusetts speci- 

 mens also bred from this species. 



