416 DESCRIPTIONS OF ICIINEUMONID.E — ASHMEAD. 



This iusect is certainly not a true Orthopelma, the abdomen and an. 

 tennal characters being different, but it is so closely related to it that 

 temporarily it may remain here, or until the female is discovered and 

 its true position ascertained. 



Orthopelma erythropa sp. uov. 



Male.— Length 3 mm . Black; anteume black, 17-jointed, the four 

 basal joints yellowish, the terminal joint fusiform, more than twice the 

 length of the penultimate; legs, including all coxre, ferruginous; the 

 apical portion of posterior tibia? and tarsi dusky. The head and thorax 

 are alutaceous, the humeri smoother; tegulre yellowish-brown; the 

 parapsidal grooves are not defined, although there are slight depres- 

 sions in the surface of the mesouotum, where they should be; the 

 maxillary palpi are long, pale brown, metathorax short, areolated. Ab- 

 domen oblong-oval, with the petiole as long as the head and thorax to- 

 gether; the petiole is nearly four times as long as thick, the same 

 thickness throughout, minutely sculptured, the spiracles before the 

 middle, the rest of the abdomen smooth, shining. Wings hyaline, iri- 

 descent; stigma and veins pale brown, the submedian cell not longer 

 than the median, the first branch of the radius as long as the first 

 branch of the postmarginal, or the outer margin of the marginal cell. 



Habitat. — Virginia. 



Described from a single specimen. 



Orthopelma minutum sp. uov. 



Female. — Length 2.4 nnn ; ovipositor, 0.6 mm . Black, the abdomen and 

 legs ferruginous, hind coxa? and petiole black. Anteume 16-joiuted, 

 dark-brown. The head is smooth, polished, sparsely pubescent; thorax 

 polished but sparsely punctate, without grooves ; metathorax areo- 

 lated. Abdomen loug-oval, smooth, ferruginous, brownish towards 

 apex, the petiole linear, more than four times longer than thick, the 

 spiracles placed much before the middle. Wings hyaline, iridescent; 

 stigma and veins brown, the first branch of radius less than half the 

 length of the first branch of the postmarginal. 



Habitat. — Jamaica Plains, New York. 



Described from one specimen, reared May 21, 1884, from a Rose-gall, 

 Rhodites sp., received from Miss Cora Clarke. 



Orthopelma bimaculatum sp. uov. 



Male.— Length 3 mm . Black; antennae 18-join ted, dark brown, scape 

 black, the terminal joint fusiform, one-third longer than the penulti- 

 mate. Thorax very minutely sculptured, without grooves ; tegulae yel- 

 lowish-white; metathorax aciculated. Legs yellow-testaceous, the hind 

 cox re black. Abdomen piceo-black, most of the disk of the second seg- 

 ment and a large spot at base of the third gamboge yellow, the petiole 



