378 BULLETIN 4 -J, UNITED STATKS NATIONAL MUSEUM. 



Aclista califoruica, sp. uuv. 



9. Leiiffth, 2.5""". Polished black, pubescent; antemiic black, the 

 ])asal 5 joints rufous; leji's lufous, the hind co.xse black basally. An- 

 tenna' 15-jointed, luonilitbini, the first tlag:cllar J()int twice tho lenjitii 

 of the pedicel, the second shorter than the ])cdicel, the joints beyond 

 moniliforni. Metathoraxcarinated, very pubescent. AVinjfs.subfnscons, 

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

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

 obloug-oval, black, the tip and beneath sparsely pubescent, the petiole 

 as long as the metathorax, strongly tinted. 



Habitat. — Santa Cruz Mountains, California. 



Tyi)e in Coll. Ashraead. 



Described from a single specimen. 



Aclista borealis, sp. iiov. 



9. Length, 2.0""". Polished black, pui>escont; antenna^ and legs 

 brownish-yellow. Anteniiic 1.")- jointed, tiliform-moniliform, the first 

 flagellar joint one-third longer than tiie pedicel, the joints beyond the 

 third, except the last, all of an e(inal size, moniliform, very slightly 

 wider than long, tln^ last one thiid longer tiian the penultimate. Wings 

 subfuscous, the marginal vein about as long as the stigmal, the latter 

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

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

 fluted. 



Habitat. — Ottawa, ( 'anada. 



Type in Coll. Ashmea<l. 



Described from a single specimen. 



Aclista floridana, sp. nov. 



S. Length, 2,0'"'". Polished black, pubescent; antenna^ and legs 

 brownish-yellow. AutenuiB 14-jointed, setaceous, the first flagellar 

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

 gradually subequal to thelast, the ])enultiniate joint being about thrice 

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

 carinated, the central carina forked from the middle. Wings sub- 

 fuscous, the marginal vein a little longer than the oblique stigmal. the 

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

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

 shining, the tip and beneath with whitish pile, the petiole 1^ times as 

 long as thick, delicately keeled above with a deej) (ihannel along the 

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

 the sixth. 



Habitat. — .Tacksonvillc, Fla. 



Type in Coll. Ashmead. 



