400 BULLETIN 45, UNITED STATES NATIONAL MUSEUM. 



AnteniiiB IS-joiiited in both sexes, inserted on a slight frontal promi- 

 nence; in 9 incrassated toward tips, submoniliform; in 5 , long fili- 

 form, the joints long, cylindrical, pilose. 

 'Maxillary palpi 4-Jointed. 



Thorax subo void, the mesonotuni broader than long, without furrows, 

 the scutellun subconvex with grooved lines at the sides and a fovea 

 across the base, the metanotum very short, the posterior face carinated 

 above. 



Front wings pubescent, ciliated, the submarginal nervure reaching 

 the costa just before its middle, marginal vein punctiform, stigmal 

 vein distinct, oblique, two or more times longer than the marginal 

 nervure; basal nervure wanting the postmarginal nervure distinct. 



Abdomen oblong-oval, petiolated, the second segment very long, with 

 sulci at base. 



Legs clavate. 



Distinguished from HemUej-is in having no mesonotal furrows and 

 no basal nervure; also by the difference in the male antennae, all the 

 flagellar joints being long and cylindrical, pilose. '■ 



Hemilezodes fioridana, sp. iiov. 

 (PL XVI, Fig. 8, 9.) 



9 . Length, 1.5""". Entirely honey-yellow, except the head, which is 

 brownish. Antenn.e 13-jointed, the flagellar joints, after the fourth, 

 round-moniliform. Thorax without furrows; scutellum with a trans- 

 verse fovea at base; metathorax carinated. Wings hyaline, strongly 

 fringed, entire, the nervures pale yellow, the stigmal vein long, oblique, 

 more than 3 times as long as the short marginal. Abdomen oblong 

 oval, truncate at tip, smooth, polished, the petiole 1^ times as long as 

 thick with raised lines toward the sides. 



Habitat. — Jacksonville, Fla. 



Types in Coll. Ashmead. 



Other species in this genus are known to me from the West Indies, 



SYNACRA Fiirster. 



Hym. Stud., ii, p. 128 (1856). 



Chlidonin H. Sch., Forts. Faun. lus. Germ. CI. vii. 

 .4r<t&oZtt8 HaL, Nat. Hist. Kev., IV, p. 173 1857). 



{Type Diapria brachialia 'Seen). 



Head subglobose, the cheeks rounded, the occiput scarcely margined ; 

 ocelli 3, triangularly arranged, rather close together on the crown; eyes 

 oval. 



Anteniue inserted on a frontal proniinen(5e; in 9 12-jointed, termina- 

 ting in a 5 jointed club; in 3 14 jointed, tiliform, the flagellar joints 

 long, cylindrical, i)ilo8e, the first excised. 



Mandibles subrostriform, bjdentate at tips. 



Thorax ovate, the mesonotum with 3 distinct furrows, the scutellum 

 CQQvex. witU a fovea at base; metathorax smooth. 



