260 AMERICAN HYMENOFTKRA. 



Abdduaen with narrow, red, apical margins: le^s ferruginous, except hind tarsi 



and tibise, which are brown inargiiiMtuN Prov. 



Abdomen entirely black. 



Posterior legs mostly rufous cras<iUS Cress. 



Posterior legs black, with more or less yellow on tibipe tristiN Prov. 



Abdomen more or less rnfous. 



Wings subhyaline to hyaline; abdomen coarsely punctured, black at base 



and usually at apex (liiiii<lial us Cress. 



Wings fuscous; abdomen glabrous, finely punctured and entirely rufous. 



glabro!!iU!« n. sp. 

 Eri'onienus niMi'giiiatiiK Prov., Faune ii, 797. 



9- — 7mm. Black, wjth mandibles, palpi and tegulse yellowish; clypeus and 

 legs, except hind tarsi and apex of their tibiaj, ferruginous; abdominal segments 

 finely margined with red at the apex. 



Type from Cape R(juge, Canada, and in the Quebec Museum. 



Erronienus crassus Cress. {Trt/phon). Trans. Am. Ent. Soc. ii, 107. 

 Tri/phon tejomcm Cress., Proc. Acad. Nat. Sci. Phila. 1878. 372, % . 

 % 9 -""7 mm. Black, with a])ical portion of clypeus, mouth-parts and antennae 

 in 9 . dusky rufous ; legs rufous, in one % the coxae are piceous and in the other 

 they and the trochanters are black; antennae brownish black in % ; wings sub- 

 hyaline, nervures and stigma piceous ; stigma thick, triangular, carinae on basal 

 segment of abdomen reach the apex. 



Three specimens from New Jersey, Massachusetts and California, 

 also Canada (Cresson). Types, coll. Amer. Ent. Soc. 



Erroinenus tristis Prov., Add. Faune 110. 



9 ? — 7 mm. From Provancber's description the only difference between this 

 species and crassns is that the legs in this species are black, except the four ante- 

 rior tibite, which are yellow or .spotted with yellow at the base beneath. 



One specimen from Ottawa, Canada. 



Erroiiienus <liini<liatiis Cress. {Tryphon). Trans. Amer. Ent. Soc. ii, 108. 

 Tri/phon ntricoxns Walsh, Trans. St. Louis Acad, iii, 104. 



'^ 9 • — 6-7 ram. Black, with abdominal segments 2-4 usually rufous, .some 

 times 3 and 4 are piceous or black; legs rufous, with coxae, and usually trochan- 

 ters, black; posterior tibiae with a more or less distinct yellow annulus at base; 

 apical portion of clypeus dusky rufous to yellowish; tegulae piceous to yellow; 

 antennae black: thorax and abdomen coarsely punctured; head and thorax 

 strongly pilose: wings subhyaline; nervures and stigma brown, paler at base. 



Twenty-four specimens from New Hampshire, Massachusetts, New 

 Jersey, Pennsylvania, Michigan, Illinois, Colorado, Montana, Idaho 

 and Washington (type, coll. Amer. Ent. Soc). 



Erronieniis glal>ro<iiiis n. sp. 



'J, 9- — 8 mm. Head and thorax black; abdomen entirely rufous, polished^ 

 finely and sparsely punctured ; legs rufous, coxae black, trochanters dusky, tibiae 

 yellowish at base; clypeus except base, most of mandibles, palpi and tegulae, 

 yellowish to dusky rufous; antennae dark brown ; wings fuscous, iridescent, ner- 

 vures and stigma dark brown, paler at base; the entire body is much more highly 

 polished and with finer punctures than in the preceding species. 



