336 BULLETIN 45, UNITED STATES NATIONAL MUSEUM. 



pniictures; a row of crenate punctures along the liind margin of the 

 mesopleura. Antenna^ 13-Jointed, black, the basal joint reddish, robust, 

 partially inclosing the small second joint. AV'ings subfuscous, the nerv- 

 ures fuscous, the marginal cell very short, about one-fourth the length 

 of the stigma, the internal venation distinct as fuscous streaks. Ab- 

 domen not as long as the thorax, the ])etiole very short, grooved, black; 

 the second segment at base with a median furrow, and three grooves 

 on either side; terebra fully as long as the abdomen, a little curved, 

 longitudially striated ahmg the sides. 



In the $ the head and thorax are most frequently black, although 

 sometimes more or less piceous or reddish, the coxa* black or dusky, 

 the tarsi most frequently fuscous or at least tinged, the abdomen dusky 

 at apex and ending in two short prcmgs; otherwise as in the 9 , 



Habitat. — United States generally. 



Specimens in National Museum, lioyal Berlin Museum, Coll. Ameri- 

 can Entomological Society, and Coll. Ashmead. 



A common species, somewhat variable in size and color. I have 

 seen Patton's type of P. cremiJntm in Coll. American Entomological 

 Society, and there is no doubt of its being a synonym of this species. 



Dr. Clarence M. Weed has sent me quite a large series collected in 

 Ohio, and I have seen specimens from various paits ol the country. 



Proctotrypea peillidus Say. 



Lee. Ed. Say's Works, I, p. 382; idem., ii, p. 725; Asbni.Eat. Am., iii, p. 99; Cress. 



Syn. Hym.,p.248. 



$ 9 . Length, 6 to 8""". Eeddish-testaceous, ch)sely resembling P. 

 caudaUm, but with the metathorax more finely rugose, with a median 

 carina, the sculpture not longitudinal, the anteniue Avholly testaceous or 

 brown, the second abdominal segment with fine stria' at extreme base. 



In the S only the nieso and metapleura are blackish, the coxa' pale, 

 the tarsi not dusky, apex of abdomen very slightly dusky, often concolo- 

 rous with the rest of the abdomen, while the prongs are shorter than in 

 caudatvH. 



HABITAT. — United States. • 



Specimens in Coll. American Entimudogical Society, National Museum, 

 and Coll. Ashmead. 



Proctotrypes rufigaster Prov. 



Nat. Can., xii, p. 263; Faun. p:nt. Can., p. 561, <J 9 ; Aslim. Ent. Am., ni, p. 99; 



Cress. Syn. Hym., p. 248. 



(J. Length, o""". Head and thorax black; legs reddish-yellow, the 

 tarsi slightly dusky; abdomen reddish-yellow, the x>€tiole, extreme 

 apex of second aud foHowing segments black,, Antenna' hmg, cylin- 

 drical, black, the basal joint ruft)us beneath. Thorax smooth; collar 

 at sides, mesopleura beneath the teguhe aud anteriorly and posteriorly, 



