308 August Schletterer. 



angustatus pro capitis pctiolo. Abdomen clavatum, compressum hasi nigrum; 

 fasciis duabus flavis, apnce flavum ano nigra. Aculeus brevis, exsertus, niger. 

 Pedes ruß, Ubiis posUcis incrassatis, atris. 



18. Gasteruption Hollandiae Gu^r. 



Fomus HoUawUae Guer., Iconogr. R. Ass. Ins., p. 407, 9 1828 (1839)— 1844 



Noir. Dessous de la tete et du thorax garnis d'un fin duvet blanchätre 

 et soyeux. Abdomen tres-long, insensiblement älargi vers Fextr^rait^, comprimä 

 surtout ä la base, avec l'oviducte court, n'ayant pas la moitie' de sa longueur, 

 et dont les deux filets latdraux sont noirs, terminäs de blaue. Pattes anterieures 

 et iutermediaires fauves, avec le milieu des jarnbes et les deux derniers articles 

 des tarses jaunes, ä l'exceptioa de la base du premier article et de l'extremitö 

 du dernier, qui sont noires. Ailes transparentes, ä nervures noires. 



Long. 16mm., enverg. n^/imm. 



Hab. la Nouvelle-Hollande. 



19. Gasterupfion incerfutn Cress. 



Foe7uis inceriHs CreRS., Pröc. Ent. Soc. Phil., V. III, p. 133, cf, 9 1864 



Female. Black; antennae slightly tinged with piceous beneath towards 

 tbe tip. Thorax duU black, without distinct punctures, minutly shagreened; 

 metatborax rougbly punctured. Wings obscure hyaline, nervures and stigma 

 black. Legs black, the two anterior pairs with the base of their tibiae reddish. 

 Abdomen black, apex much broader than usual ; sides of the second, third and 

 fourth Segments at tip, ferruginous; ovipositor very short, about one line in 

 length, ferruginous, valves black. 



Length i^/2", expanse of wings 5'". 



Male. Resembles the female, but the abdomen is more slender, all the 

 tarsi, the two anterior pairs of feraora and the posterior femora at base, more 

 or less pale ferruginous. 



Hab. Rocky Mountains, Colorado Territory. 



This appears to agree very well with the descriptiou of i^. assector Linn., 

 of Europa, with the exception of the coloring of the legs. 



20. GaSteruption Kirbii Westw. (Barnston M. S.). 



Foenns Kirbii Westw., Trans. Ent. Soc. Lond., n. ser., V. I, p. 219, 9 1850—51 



G. assectatori proximum nigrum, subopaeum ; thorace varioloso-puncta- 

 Hssimo; antennis piceis, extus rufescentibus extremo apice nigro, mandibiüarum 

 apice rufo; pedibus 4 anUcis piceo-rufis, coxis nigris, femoribus subtiis nigris 

 pedibus 2 posUcis cum coxis nigrescenUbus, geniculis rufis; tarsis brevibus, 

 rufo-piceis; abdomine nigro nitida, rufa-bifasciata; terebra vix qimrtam partem 

 ,abdaminis aequante, alis parum infumatis, stigmate nigro. 



Long. corp. 5V2'", expans. alar. anUc. G'/V". 



Hab. Hudsons Bay. 



