376 BULLETIN 45, UNITED STATES NATIONAL MUSEUM. 



, First tlagellar. joint one-third long«r than thts iieditei, tli« joints heyond the 

 third laonilii'orni, ecinal, not wider tlian lou}^, the hi«t oue-tliird 

 h)nger than the pcniiltiniate. 



Ahdonieu pointed ovat«! A. isoukalis, sp. nov. 



Antenn.'e filiform, the joints long, cylindrical. 



First Uajjjelhir joint one-third lonjicr tlian the pedicel, excised at haso, the joints 

 heyond snheqnal, tlie pennltiniate at least thrice as long as thi(rk. 



A. FI-OIUDANA, sp. nov. 



Aclista rufa, sp. nov. 



9. Length, 2.5'" ". liufoi)i(eous, the head dusky or blackish; anten- 

 na' and legs brownish yellow. Antenna"! 15-jointed, elavate-nionilitbrni, 

 the lirst flagellar joint slender, not (juite as long as tht' i)edi('el, which is 

 much stouter, the Joints beyond all in(»niliforni and much enlarged 

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

 cell entirely wanting, the marginal vein about twice as long as thick, 

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

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

 the seventh segment as long as th' fourth, lifth, and sixth united and 

 slightly longer tlian the eighth. 



Habitat. — Texas. 



T\q)e in Coll. Ashmead. 



Aclista rufescens, sp. nov. 



9. Length, 3""". Daik brownish piceous, the head almost black; 

 antennae and legs brownish-ycUow, the tbree or four terminal Joints of 

 the antenna* black. 



It is close to r»/rt, but differs in having longer and more slender 

 antenna^, the scape htnger ami slenderer, the pedicel longer than the 

 fli st 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 fjom a single specimen. 



Aclista rufopetiolata, sp. nov. 

 (PI. XV, Fig. 4, 9.) 



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

 apex of abdomen rufous, basal joint of antenn.e and legs pale rufous. 



Antenufe 15-jointed, clavateimmiliform, the first 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 



