370 lU'I.T.ETIX ir., UNITED STATES NATIONAL MUSEITM. 



First li:igi'lliir.jitiut one-third loui^er than the pedicel, the joints hcyond the 

 third nionilironn, eciual, uot wider than long, the last oue-tliird 

 longer than the penultimate. 



Abdomen pointed ovate A. isokealis, sp. uov. 



AntennjB filiform, the joints long, cylindrical. 



First flagellar joint one-third longer tlian the po<licel, excised at base, the joints 

 bej'ond snlx^qnal, the i)eniiltimate at least thrice as long as thick. 



A. Fl.OIilDANA, S]). nov. 



Aclista rufa, s]i. nov. 



9 . Length, 2.5""". Iiiifo-i»ifeous, the liead dusky or blackish; anten- 

 na' and legs brownish yellow. Antenine lo-jointed, clavate-nioniliforni, 

 the first flagellar joint slender, uot quite as long as the pedicel, Mhich is 

 much stouter, the joints beyond all nioniliforni and much eidarged 

 after the seventh, the last oblong. Wings snbhyaliue, the marginal 

 cell entirely wanting, tlie marginal vein about twice as hmg as thick, 

 the stigmal represented oidy by a stump of a vein. Abdomen long, 

 conic-ovate, the petiole shoit, not longer than thick, almost smooth, 

 the seventh segnnMit as long as the fourth, iifth, and sixth united and 

 slightly longer than the eighth. 



Habitat. — Texas. 



Type in Coll. Aslunead. 



Aclista riifescens, sji. nov. 



9. Length, 3""". Dark brownish x>i^'t^ous, the head almost black; 

 autenuie and legs brownish-yellow, the three or four terminal joints of 

 the antennae black. 



It is close to rnfa, but differs in having longer and more slender 

 antenna^, the scape longer and slenderer, the pedicel longer than the 

 first flagellar joint, while the flagellum is longer, the joints towards apex 

 not so large or transverse, the four or five terminal joints being black; 

 the marginal cell is entirely wanting, the marginal vein being puncti- 

 form, not longer than thick; the abdomen is longer, stouter, and more 

 pointed, the seventh and eighth segments being equal. 



Habitat. — Santa Cruz Mountains, California. 



Type in Coll. Ashmead. 



Described from a single specimen. 



Aclista rufopetiolata, sp. nov. 

 (PI. XV, Fig. .1, 9.) 



9 . Length, 2.5'"'". Black, shining, pubescent, the metathorax petiole 

 apex of abdomen rulbus, basal joint of antenna; and legs pale rufous. 



Antenna! 15-jointed, clavate-moniliform, the lirst flagellar joint is 

 twice as long as the pedicel, the joints beyond shorter, all moniliform. 



Wings fuscous, the marginal cell open, the marginal vein half the 

 length of the first branch of the radius being only a little longer than 

 thick, the second branch of radius not develoi)ed. Abdomen pointed 



