PTEROMALIDAE OF N.W. EUROPE 471 



friend Philip Bennet, Esq., of Rougham Old Hall " [this locality is in Suffolk, 

 just east of Bury St. Edmunds]. Ruschka (1924 : 14) recorded the rearing of 

 endomychi in Sweden, by F. Nordstrom, from the same host. In BM(NH) there 

 is a large series, reared in England (Somerset, Bridgwater, July 1923) from the 

 same host, by Miss Barrington. Imagines have been taken (in Britain) in May, 

 July, and September. 



PSYCHOPHAGOIDES gen. n. 



(Derivation : from Psychophagus, and -oides, like. Gender: masculine). 

 Type-species: Psychophagoides crassicornis sp. n. 



Only the female sex is known and has the following characters: 



Occiput not margined. Genae without a hollow above the bases of the mandibles. Left 

 mandible with three teeth, right mandible with four. Clypeus strigose, its anterior margin 

 shallowly emarginate. Antennae (Text-fig. 310) inserted distinctly above level of ventral 

 edge of eyes, toruli about equidistant from anterior margin of clypeus and the median ocellus, 

 formula 11263 ; anelli strongly transverse ; flagellum notably stout, with very numerous 

 sensilla arranged in two rows on each segment ; sutures of clava not oblique. Pronotum short, 

 without a collar, the dorsal part rounded off anteriorly. Notauli incomplete. Scutellar 

 frenum marked off by a fairly distinct line. Propodeum rather short, medially not produced 

 beyond the bases of the hind coxae, its hind margin therefore nearly straight ; median carina 

 weak, plicae indistinct ; nucha represented only by a small subtriangular, weakly sculptured 

 area ; spiracular sulci moderately distinct, spiracles rather small, subcircular, nearly touching 

 the metanotum ; callus sparsely pilose. Postspiracular sclerite rather large, mainly reticulate. 

 Mesepisternum with a partly smooth area below base of hind wing ; mesosternal mesolcus 

 subobsolete. Hind coxae bare dorsally ; hind tibia with one strong spur, and a second very 

 weak spur, which is only about one third as long as the first. Fore wing with a speculum ; 

 marginal vein much longer than the stigmal vein ; postmarginal vein slightly shorter than the 

 marginal ; stigma small. Costal cell of hind wing bare. Gastral petiole transverse, smooth. 

 Gaster ovate, pointed apically ; ovipositor sheaths hardly projecting beyond the last tergite ; 

 tip of hypopygium situated about half way along the gaster ; pygostylar bristles relatively 

 short, subequal in length. 



This genus is on the whole nearest to Psychophagus Mayr ; the female differs as 

 follows : 



Antennal flagellum stouter, thicker proximally (thinner and filiform in Psychophagus) with 

 more numerous sensilla, in Psychophagus arranged in one row on each segment, or at most 

 a partial second row on the proximal segments ; anelli more transverse, only about twice as 

 broad as long in Psychophagus ; pronotal collar not differentiated, in Psychophagus there is a 

 subhorizontal collar which has at least a weak margin anteriorly ; sculpture of scutellum 

 slightly raised, engraved in Psychophagus, frenum longer and more distinctly marked off ; 

 propodeum not produced medially, distinctly so in Psychophagus, with basal foveae small, 

 instead of large and oblong, spiracles close to metanotum, separated from it by nearly their own 

 length in Psychophagus ; gaster pointed, instead of obtuse apically ; marginal vein longer 

 relatively to the stigmal vein, the latter nearly straight, very distinctly curved in Psychophagus, 

 Text-fig. 308 ; postmarginal vein slightly shorter, instead of slightly longer than the marginal. 

 In Psychophagoides the anterior margin of the clypeus is shallowly emarginate instead of 

 incised, whilst the ratio of POL to OOL is relatively greater than in Psychophagus. 



