ART. 15«. REVISION OF SUBFAMILY PLATYGASTERINAE FOUTS. 21 



Male. — Length 2 mm. Pedicel a little longer than wide, widened 

 apically, with a tuft of long hairs below at apex, wider than any fla- 

 gellar joint except the third and fourth; three triangular, transverse, 

 closely joined to the fourth, as wide as two; four a little wider than 

 long, twice as wide as the pedicel, slightly narrowed distally; five to 

 seven a little longer than wide; eight and nine quadrate; ten as long 

 as four, conical, sharply pointed apically; joints six to ten equall}^ 

 wide, a little wider than five; abdomen five-eighths times as wide as 

 long, as long as the thorax; tergites three to seven polished, united 

 less than one-third as long as the second; seven broadly rounded 

 apically; wings hyaline, extending half the length of the second tergite 

 past the apex of the abdomen. 



Type locality. — Jacksonville, Florida. 



Type.— Cat. No. 2280, U.S.N.M. 



Redescribed from the type series, one female (selected as type) and 

 two males (one selected as allotype) . According to Ashmead these 

 specimens were reared from a Cecidomyid gall on hickory. Two of 

 the types bear no label whatsoever and the other is labeled only, 

 "Jacksonville, Florida." Three other specimens included by Ashmead 

 in the type series do not belong to the same species. They remain 

 undescribed. 



3. ERITRISSOMERUS NOVEBORACENSIS Brues. 



Eritrissomerus noveboracensis Brues, Bull. Wise. Nat. Hist. Soc, vol. 8, 1910, 

 p. 48. 



The original description is as follows; 



Male. — Length 2 mm. Black; legs yellow, sometimes infuscated on the hind 

 femora; antenna piceous brown, scape lighter brown. Head slightly wider than the 

 thorax, very much contracted behind the eyes ; about twice as wide as thick. Vertex 

 and occiput finely transversely aciculated. Lateral ocelli more than their diameter 

 removed from the eye margin, about as close as to the median ocellus. Front punc- 

 tate or slightly transversely aciculate, with a smooth, median slightly inpressed line 

 below the anterior ocellus. Face transversely striate. Cheeks sparsely punctate. 

 Madibles ferruginous. Antennae 10-jointed; scape reaching to the median ocellus; 

 pedicel obovate, twice as long as the first flagellar joint which is half as long and 

 only about one-third as wide as the greatly swollen second joint; two following joints 

 narrow, each about one-half longer than wide; following growing shorter except the 

 last which is longer, narrower, and acuminate. Mesonotum elongate, with two very 

 distinct, complete parapsidal furrows which are closely approximated; its surface 

 shining, faintly punctulate. Scutellum very convex, rounded, with a very distinct 

 carinate margin. Pleurae smooth, shining; the mesopleura with a large impression 

 below and with a few coarse striae just beneath the tegulae. Collar below on the 

 sides closely punctulate. Aletapleura thinly hairy, not striated, with a short basal 

 carina above, which forms a triangular area with a second oblique carina lower down 

 on the metapleiira. Abdomen elongate, pointed, about one-third longer than the 

 head and thorax united. Petiole and basal third of second segment finely striated, 

 the striae on the sides of the second segment shorter; second segment nearly as long 

 as the following united. Legs bright or honey-yellow; coxae black and the four 

 posterior tibiae sometimes infuscated. Wings hyaline with a slight yellowish tinge. 



