﻿316 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 102 



the radial cell open ; hence the species belongs in Synophrus and was 

 transferred in "Hymenoptera of America North of Mexico," p. 613, 

 1951. 



Genus SYNOPHROMORPHA Ashmead 



Synoplirotnorpha Ashmead, Psyche, vol. 10, p. 45, 1903. 



Ashmead, in his key to genera, designated Synophromorpha salicis 

 as the type of this genus, but no further description of it was ever 

 published, and no specimen so labeled was found in the Ashmead 

 collection. It was supposed to have been reared from a dipterous 

 gall on willow and considered to be a guest fly. He characterized 

 the genus as having an open radial cell, the petiole not longitudinally 

 striate, and separable from Synophrus Hartig by having a coriaceous 

 instead of transversely sculptured mesoscutum with more or less 

 distinct parapsidal grooves, smaller foveae, incomplete areolet, and 

 the third segment of the antenna longer than the fourth in the male. 



SYNOPHROMORPHA SYLVESTRIS (Osten Sacken). new combination 



Synophrus (?) sylvestris Osten Sacken, Ent. Zeit. Stettin, vol. 22, p. 415, 1861. 



This species agrees with the diagnosis of Synophromorpha and is 

 here transferred to that genus, and as the original spelling is permissi- 

 ble Latin it is retained. It was reared from the gall of Diastrophus 

 nebulosus Osten Sacken on blackberry in the Washington, D. C, area. 

 Adults agreeing with paratypes of this species have often been reared 

 from this gall in this, the type, area and in many other localities. 

 Range in length of females 2.1-3.25 mm. Average of 31 specimens 

 2.86 mm. Males 1.8-2.65 mm. Average 2.25 mm. Similar adults 

 have been reared from galls of Diplolepis ignota (Osten Sacken) in 

 the Washington area. 



Two new species are described in the present paper. Like sylvestris 

 they have the face striate, antennae and legs straw yellow, antennae 

 12-segmented in the female, mesoscutum broader than long, parapsidal 

 grooves percurrent and broadened posteriorly, foveae smooth, carinae 

 on propodeum straight, diverging above, abdomen with a hairy ring 

 at base and a faint indication of a suture between tergites II and III 

 as in Ceroptres. 



SYNOPHROMORPHA TERRICOLA, new species 



Differs from sylvestris in having the mesopleuron smooth instead of 

 finely aciculate and a fainter coriaceous sculpture on mesoscutum. The 

 parapsidal grooves closely approach each other at scutellum where 

 they are separated only b}^ a distinct median groove. Length of fe- 

 males 2.2-2.9 mm. Average of 32 specimens 2.57 mm. Males have 14- 



