378 BULLETIN 4.-,, UNITED STATES NATIONAL MUSEUM. 



Aclista califoriiica, sp. uov. 



9. Length, 2,5'"'". Polished bhick, i)ubesceiit; imteiina^ l)lack, the 

 basal 5 joints rutbiis; legs rufous, the hind cox;e black l)asally. An- 

 tennji; 15-jointed, luonilitbrm, the lirst tiagellar joint twice the length 

 of the ])edicel, the second sliorter than tlie ])cdicel, tlie joints beyond 

 nionilitbrm, Metatlioraxcaiinated, very pubescent. Wings subfus(;ons, 

 the marginal vein about twice as long as thick, the stigiual short 

 oblique with a hook at tip (all that remains of the radius.) Abdomen 

 oblong-oval, black, the ti^) and beneath sparsely pubescent, the petiole 

 as long as the metathorax, strongly Huted. 



Habitat. — Santa Cruz M(mntalns, California. 



Type in Coll. Ashmead. 



Described from a single specimen. 



Aclista borealis, sp. nov. 



9. Length, 2.G""", Polished black, pubescent; antennre and legs 

 brownish-yellow. Antenna' l.l-jointcd, liliform-moniliform, the tirst 

 tiagellar joint one-third longer than the pedicel, tlie joints beyond the 

 third, except the last, all of an equal size, moniliform, very slightly 

 wider than long, the last one-third longer than the i)eiiultimate. Wings 

 subfuscons, the marginal vein about as long as the stignial, the latter 

 oblique with a slight branch at tip. Abdomen pointed, ovate, black, 

 shining and pubescent, the petiole as long as the metathorax, strongly 

 Huted. 



Habitat. — Ottawa, Canada. 



Type in Coll. Ashmead. 



Described from a single specimen. 



Aclista floridana, sp. nov. 



$. Length, 2.6'"'". Polished black, pubescent; antenna? and legs 

 brownish -yellow. AutennfB 14-jointed, setaceous, the first tiagellar 

 joint a little longer than the scape, excised at base, the following joints 

 gradually subecjiml to the last, the penultimate joint being about thrice 

 as long as thick and shorter than the last. Metathorax smooth, shining, 

 carinated, the central carina forked from tlie middle. Wings sid)- 

 fuscous, the marginal vein a little longer than the oblique stignial, the 

 radius (or second branch) partially developed, as long as the stigmal, 

 and forming an open marginal cell. Abdomen oblong-oval, black, 

 shining, the tij) and beneath with whitish i)ile, the petiole li times as 

 long as thick, delicately keeled above with a deep channel along the 

 sides, the seventh and eiglith segments of an equal length, longer than 

 the sixth. 



Habitat. — Jacksonville, Fla. 



Type ill Coll. Ashmead. 



