NORTH AMKRrCAN HYMKNOPTKRA. 331 



Described from a single $ specimen, received some years ago from 

 Mons. Tj. T^ithierry, which was confused with several specimens of 

 Isosoma filicorne Boh. 



In the shape of the head and metathorax it differs widely from 

 any other Eurytoniid described, the metathorax being similar to 

 those found in the Bethylids i. e., Epyris, .}fesilius, etc. 



Isosoniorplia tibialis sp. n. 



9- — LeiiKtli 4 min. Black; trochanters, tips of femora, and all tibia? and tarsi, 

 brownish yellow; anterior angles of pronotnni witli a reddisli spot: antenna* 

 12-jointed, two ring-joints, the flagelluni subclavate. the first joint tlie longest ; 

 wings hyaline, the marginal nervnre twice as long as the stigmal, the h>tter 

 forked at apex; abdomen oblong-oval, the petiole coarsely punctate; body 

 smooth, polished, the first segment much longer than the two following united, 

 the sixth segment with a delicate scaly punctuation, sparsely pubescent. 



% . — Length 3.5 mm. Antenna; filiform, the joints all long, cylindrical, nilose. 

 but not pedicellate; scape a little shorter than the first flagellar joint dilated 

 beneath; metanotum with a central longitudinal furrow; petiole of abdomen 

 longer than hind coxje. rugose, about three times as long as thick; body of ab- 

 domen oval, the first segment as long as the two following united, the ajiical 

 segments retracted. 



Hab. — Montana, Dallas, Oreg. Tyj)es in coll. American Ento 

 mological Society and coll. Ashmead. ' 



Described from two S and two 9 specimens labeled from Mon- 

 tana (coll. Am. Ent. Soc.) ; and one $ specimen in my collection 

 taken by Mr. E. A. Schwarz at Dallas, Oreg., May 19, 1898. 



IKOSOIVIOCIIARIS Ashmead. 



1888.— Kutom. Amer. vol. iv. ]>. 42 (June). 



(Type /. snlcnta Ashm.) 



IsosoiiiochariK Kiilcata sp. n. 



9- — Length 1.8 mm. Black; spot on sides of pronotum, a small spot on hind 

 angles of metathorax and legs, including all coxje, brownish yellow: antiMinte 

 black or brown-black, the scape very slightly dilated beneath, the flagellum sub- 

 clavate, pubescent, the pedicel long, obconical, one-third longer than the first 

 funicular joint: funicular joints, after the first, submoniliform, very gradually 

 increasing in width ; club 3-jointed, ovate. Thorax sliagreened, the middle lobe 

 of mesonotum smooth, shining, impunctured, the metanotum long, with a shal- 

 low but distinct median sulcus, the bottom of which is transversely striated ; 

 wings hyaline, the nervures light brown, the marginal vein very long, twice as 

 long as the stigmal. Abdomen ovate, about two-thirds the length of the thorax 

 or a little longer, higlily polished, inipunctate, not compressed, the petiole wider 

 than long, rugose, the first and third body segments long, the second about half 

 the length of the first; those following the third very short. 



Hdb. — Jacksonville, Fla. Types in coll. Ashmead. 



TRASS. AM, KNT. SOC. XXI. SKPTEMBER. 1«»4 



