212 [September, 



fenestra between the transverse-eubital and recurrent nervures ; first cubital cell 

 not discreted from the first diseoidal ; second discoidal small, transverse, and open 

 below at both extremities ; posterior nervure strong ; margino-discoidal nervure 

 emitted from the median distinctly before the medio-discoidal ; second posterior 

 basallj curved. Hind-wings with the median abscissa of subcostal nervure elongate ; 

 median nervure emitting the medio-discoidal but slightly before the transverso- 

 discoidal ; anal nervure strong and elongate ; radial and cubital nervures extending 

 to apex. 



S. FALCONIVIBRANS, Sp. 71. 

 A clear testaceous species with the eyes, flagellum, anus, terebra, tarsi, and the 

 upper side of tlie head, thorax and basal abdominal segment, black ; the remaining 

 segments, especially above, hind coxas basally, stigma, nervures and tegul8e,brunneous; 

 frenum, scape, base of the front tarsi and of the strongly bordered occiput, pale. 



Length, 4| mm. ; terebra, t mm. 



One male and five females were bred on May 28th and 29th, 

 1907, from a nest of Formica fusca, Latr., brought to London from 

 Porlock iu North-West Somerset, by Mr. H. St. John Douisthorpe, 

 F.Z.S. 



The above species undoubtedly belongs to the PacliylommntincB, 

 and its relationship is certainly with the Eupliorince. I will conclude 

 this short paper with the description of an undoubted Euphorid with 

 Pachylommatid tendencies. 



EUPHORUS, Nees. 



\_Char. Oen. Mandibles normal and not divergent; clypeus normal and not ex- 

 cavate ; face simple. Antennte normal. Metathorax neither vertically truncate 

 nor apically excavate. Abdomen more or less petiolate, with the basal segment not 

 longer than the remainder united ; incisui'e of 2nd-3rd segment rigid and inflexible, 

 though distinct, and with the following not retracted ; terebra concealed. Second 

 cubital cell large and subobsolete, third wanting ; radial cell very short]. 



I cannot see the palpi ; and the basal segment is so short as to 

 be termed subsessile, were it not that the neuration is entirely distinct 

 from that of the Calyptince. 



E. BISTIGMATICUS, Sp. n. 

 Head black, transverse, coriaceously punctate, posteriorly rounded, and laterally 

 subprominent between the scrobes ; face smoother, a little narrowed apically, cen- 

 trally sub-buccate and brunneous, laterally stramineous ; clypeus short, stramineous, 

 strongly transverse, apically truncate and subreflexed, with its basal fovcEB large and 

 deeply impressed ; mandibles concolorous, large, narrow and somewhat weak, apically 

 rufescent and bifid with tlie upper tooth much the longer ; eyes not very promi- 

 nent, extending to base of mandibles. Antennae black with scape of $ entirely 

 stramineous, and subfiliform with the three or four basal joints of (J stout and 

 strongly pilose ; llagellum with fourteen elongate and subcylindrical joints, not 



