AMERICAN IIYMENOPTERA. 381 



whole of metathorax except lateral and apical margins, most of poste- 

 rior coxa3, tips of tarsi, first segment of abdomen except extreme base, 

 the second except large spot at base, and the third, fourth and fifth 

 segments except lateral spot, black ; metathorax rugose ; wings hya- 

 line, iridescent, nervures fuscous, base and apex of stigma luteous; 

 second cubital cell twice longer than broad; apex of femora fuscous; 

 first, second, and base of third segments of abdomen coarsely, longitu- 

 dinal aciculate, the remainder finely so. Length 2 J lines. 

 Ilah. — Mexico. Prof. Sumichrast. 



16. Aleiodes fulvus, n. sp. 



9 % . — Fulvo-ferruginous, opaque, rugulose ; e3'es short, ovate, 

 scarcely cmarginate within ; tips of mandibles, triangular spot covering 

 ocelli, antennoe except basal joint, sutures of thorax, space around scu- 

 tellum, lateral margin of metathorax, and most of pleura beneath, black ; 

 wings subhyaline, iridescent, nervures fuscous; metathorax reticulated 

 and pubescent; two basal segments of abdomen longitudinally rugose, 

 the third aciculate; the three following segments shining, and more or 

 less tinged with fuscous; antennas of 9 rather short. The thorax of 

 % is almost entirely black. Length 4 lines. 

 Z/ofi.— Canada. J. Pettit. 



17. Aleiodes aciculatus, n. sp. 



9 . — Small, fulvo-testaceous or dull honey-yellow, opaque ; thorax 

 more or less varied with fuscous; eyes short, almost circular, not cmar- 

 ginate; wings hyaline, iridescent, nervures pale, stigma fuscous; me- 

 tathorax rugulose ; abdomen above longitudinally aciculate, very finely 

 so at tip ; legs pale luteous, especially at tips. The % is honey-yellow, 

 with apex of abdomen more or less fuscous. Length 3 lines. 



Hah. — Eastern, Middle and AVestern States. In size and color this 

 species closely resembles intennedais, but is at once distinguished by 

 the sculpture of upper surface of abdomen. 



18. Aleiodes burrus, n. sp. 



9 . — Dull ferruginous, opaque ; thorax more or less varied with 

 blackish; antennas very long and slender, sometimes fuscous; eyes as 

 m fulvuii ; wings pale yellowish-hyaline, nervures sometimes testaceous, 

 sometimes fuscous; metathorax rugulose; first, second and base of 

 third segments of abdomen longitudinally rugose or aciculate ; the third 

 and following segments shining, and sometimes tinged with fuscous; 

 apex of tarsi black. Antennas of % black, with a yellowish-white au- 

 nulus at about the middle, basal joint ferruginous. Length 3} — is lin. 



Ilah. — Conn., Ills., Mexico. The 9 of this species closely resembles 

 that of fulvus, but the antenna; is longer and more slender. 



