OF WASHINGTON. 49 



Legs black ; anterior knees and tarsi honey-yellow 



or pale; tibial spurs white T. minuta Cr. 



Legs black; anterior legs, except coxae and tro- 

 chanters, yellowish-red; tibial spurs on middle 



and hind legs black T. floridana, sp. n. 



Legs, except the coxae, trochanters, and base of 

 femora, reddish-yellow ; hind tarsi fuscous ; large 



species T. californica, sp. n. 



Legs, except the coxae and trochanters and the 

 hind tarsi, which are black, reddish-yellow; 



smaller species T. explorator Say. 



Wings hyaline, the apex fuliginous. 

 Legs black; anterior pair, except base, honey- 

 yellow T. apicalis Cr. 



Legs black; anterior tibiae and tarsi, base of middle 

 tibiae, their tarsi, and an annulus at base of hind 



tibiae, white or pale yellowish T. tibiator Say. 



2. Black; head, pro- and meso-thorax and anterior legs 



flavo-ferruginous T. thoracica Cr. 



Head and thorax black; abdomen fulvo-ferruginous ; 

 anterior margin of clypeus and legs, except coxae and 



trochanters, ferruginous T. abdominalis Cr. 



Reddish or orange-yellow. 



Head, antennae, metathorax, and pleura black; 



stigma black T. seminigra Cr. 



Head mostly sanguineous ; pleura beneath and meta 

 thorax black ; stigma yellow T. viator Say. 



(1) Toxoneura pluto, sp. n. 



9- Length, 7.5 mm. Black, highly polished, covered with a sparse 

 pubescence; mandibles and palpi black; antennas 42-jointed; a little 

 longer than the body; scutellum with a punctate frenum ; metathorax 

 aivolated and coarsely rugose ; mesopleura with a large crevate furrow ; 

 wing black, a white spot at origin of first transverse cubital vein, and 

 another at apex of the second abscissa of radius and including the base 

 of the third abscissa and the apex of the second transverse cubital. Abdo 

 men depressed, the basal segment the largest, bisulcate; ovipositor 

 scarcely exserted. 



Hab. Los Angeles, California. 



Type in National Museum. 



(2) Toxoneura minuta Cress. 



Toxoneuron minutum Cr. Can. Ent. v, p. 67. 



Toxoneura minuta Cr. Syn. Hym., p. 230. 



9' Length, 2.5 mm. Black, shining, faintly punctate, sparsely se 

 riceous; wings subfuliginous, iridescent, the stigma and nervures daik 

 brown or blackish, with the second submarginal cell a little shorter than 

 the first; legs black, tibial spurs white; anterior knees, their tibiae, four 



