424 BULLETIN 15, UNITED STATES NATIOIS^AL MUSEUM. 



are tliread-like and nearly as hm^ as the body, composed of 14 joints, 

 which are very distinct, equal, oval, a third longer than broad, the 

 apical one beinj; a little longer and egg-shaped, and the basal one club- 

 shaped, and thrice as long, but scarcely thicker, than the following ones. 

 In the female they are shorter and composed of 12 joints, which are 

 compacted together, the three last enlarged and forming a kind of knob 

 or club, the last joint nearly as long as the two which precede it, its 

 end bluntly rounded." 



Habitat. — New York and Long Island. 



Ileared by Dr. Fitch from Ayromyza tritici. 



A single 9 specimen, doubtfully referred to this species, is in my 

 collection obtained frc n Mr. Martin Linell. Tt measures 1.5""' long and 

 is similar to D. erythropus, but differs as follows: Antenna? piceous- 

 black; the seventh funiclar joint is only a little longer and stouter than 

 the sixth; the legs are honey-yellow, with the hind coxiie black, and 

 the clavate x^arts of the femora and tibi.e i)iceous. 



I]|raprla texana, sp. iiov. 



9 , Length, 1.8""". Closely allied to D. erythropns, but with the legs 

 more decidedly yellow, the funiclar joints very gradually shortening, the 

 joints after the first only a little longer than thick, the seventh shorter 

 than the sixth and very little stouter, the club much larger. The fovea 

 at base of scutellum is more deeply impressed, the metathorax more 

 pubescent, while the petiole is black; otherwise as in D, erytliropus. 



Habitat. — Texas. 



Type in Coll. Ashmead. 



Diapria erythrothorax Aslim. 

 Can. Ent., xix, p. 196. 



5. Length, l.S'""^ Head and abdomen black, shining; thorax, 

 reddi.sh-yellow; legs and antenmTi, honey-yellow. Antenuse, 14-jointed, 

 the joints pedicellate-nodose, with whorls of bristles; the second flagel- 

 lar joint the longest, clavate, a little curved, the first, being but two- 

 thirds as long as the second, obcouic. The scutellum has a fovea across 

 the base, without distinct lateral imi)ressed lines, the apex slightly ridged 

 or compressed. Collar and petiole, woolly. Wings hyaline, strongly 

 fringed; the nervures pale yellow. Abdomen oval, black, polished, 

 shorter than thorax. 



Habitat. — Jacksonville, Fla. 



Type in Coll. Ashmead. 



Diapria Columbiana, sj). nov. 



9. Length, 2""". Polished black, impunctured; antennsB, except 

 the slender l-jointed club, and the legs reddish-yellow. Head sub- 

 globose, narrowed behind the eyes. Antenme 12-jointed, long and 

 slender, the first flagellar joint twice as long as the pedicel, slender, 



