V °im U 'J PROCEEDINGS OF THE NATIONAL MUSEUM. 415 



Synopsis, as Mr. Cresson says the areolet is rectangular. On referring 

 to Gravenhorst, however, I find he says "areolet rectangular, rarely 

 pentagonal," and under these circumstances it can be placed here for 

 the present. 



ORTHOPELMA Tasch. 

 Table of species. 



Head and thorax black; abdomen not wholly black 2 



Head, thorax, and abdomen black. 

 Male. — Antennae 23 jointed; abdomen linear; legs yellow-testaceous. 



O. bedell'uv sp. nov. 

 Male.— Antennae 17 jointed ; abdomen oblong oval ; legs reddish-testaceous. 



O. erythropa sp. nov. 



2. Abdomen not entirely ferruginous 3 



Abdomen and legs ferruginous ; petiole and hind coxa' only black. Female. 



0. minutum sp. nov. 



3. All coxa' black 4 



All coxa? and legs ferruginous ; abdomen testaceous, brownish towards apex, the 



petiole black; anteuu;i>, female 22-jointed, male 25-jointed. 



O. diastrophi sp. nov. 

 Anterior and middle coxa? more or less red or yellow; hind coxa? and petiole black. 

 All legs yellow- testaceous; abdomen piceo-black, most of the disk of second seg- 

 ment and a spot at base of third gamboge yellow; antenme 18-joiuted. 



0. bimaculatum sp. nov. 

 Hind legs brown; abdomen brownish-red, gradu lly becoming black towards 

 apex, sometimes at and surrounding the sutures more or less testaceous. 



Antennae, male, 19 jointed; female, 16-jointed 0. rosacola sp. nov. 



Antenna?, male, 27-joiuted; female, 22-jointed 0. occidentah sp. nov. 



4. Abdomen piceo-black ; hind legs dark-brown or black. 



Apex of abdominal segments aud base of second flavo-testaceous ; antenna' broken. 



0. coloradense sp. nov. 

 Apex of abdominal segments not margined, the base of second aud third flavo- 

 testaceous; antennae, male and female, 19-jointed 0. oalifornicum sp nov. 



Orthopelma bedelliae sp. nov. 



Male. — Length 2.8 mm . Black; antennae brown, 23-jointed, two basal 

 joints and base of third, yellowish ; legs ferruginous, hind coxre black, 

 apex of posterior femora and the tarsi dark-brown. The head and 

 thorax are minutely sculptured; mandibles, palpi, aud tegulae, white; 

 the parapsidal grooves are indicated anteriorly half the length of the 

 mesonotum; metathorax areolated. Abdomen linear, longer than the 

 head and thorax together, the petiole, second segment, and basal part 

 of third, minutely sculptured, or somewhat aciculated, the other seg- 

 ments smooth ; the petiole is not quite three times as long as thick, 

 and of the same thickness throughout. Wings hyaline, iridescent; 

 stigma and veins pale brown, the submedian cell is slightly longer than 

 the median, while the areolet is wauting. 



Habitat — St. Louis, (?) Missouri. 



Described from one specimen, reared March 24, 1874, from a Tiueid, 

 Bedellia somnulentella Zell, in Eiley Collection. 



