3)58 My. R. E. Turner on Fosso7'ial fJi/menopI.era. 



cell and the position of the recurrent nervures is different, as 

 well as the normal form of the ocelli. The o-enera which 

 Ashniead associates with Sericophorus and Zoyphiuni in his 

 Lyrodinaj are probably the nearest relations, though I do not 

 consider the relationship very close. 



As Paranysson is an older name than Sericopliorus, it 

 should be used tor the subfamily. 



The pul villi are very much developed in most of the 

 genera, especially in Sericonhorus and Zoyphiuni, but not 

 more so than in some other Crabronidte. 



Key to the Genera. 



1. Second cnbit.al cell pointed on the radial nervure ; 



antennae short and clavate 2. 



Second cubital cell petiolate; antennas not cla- 

 vate and longer 3. 



2. Radial cell with an appendiculate cell Sericophorun, Sm. 



Radial cell without an ajipendiculate cell Zoyphium, Kohl. 



3. Cubitus of hind wing originating at a distance 



beyond the transverse median nervure not 

 exceeding the length of that nervure ; hind 

 coxse without a spine or tubercle ; no pygidial 



area Sphodrotea, Kohl. 



Cubitus of hind wing originating at a distance 

 beyond the transverse cubital nervure equal 

 to at least twice the length of that nervure ; 

 hind coxje of female with a spine or tubercle ; 

 with a p3gidial area Paranysson, Gu^r. 



Grenus Paranysson, Guer. 



Nysson (Paranysson), Guer. Icouogr. Regn. Animal, Insect, p. 441 



(1844). 

 Helioryctes, Sm. Cat. Hym. B.M. iv. p. 358 (185fi). 

 Pseudohclioryctes, Ashm. Can. Entom. xxxi. p. 248 (1899). 



This genus has the mandibles deeply excised on the outer 

 margin, and the intermediate tibiae have only one apical 

 s})ine, as in other genera of the group. The second cubital 

 cell is petiolate, the cubitus of the hind wing originates much 

 further from the transverse median nervure than in Spho- 

 drotes or other genera of the family. The radial cell is 

 without an appendiculate cell. There is a distinct pygidial 

 area in the female, and also in that sex a tubercle, or more 

 often a long spine, on the hind coxae. The male has a 

 pygidial area, but is without the spine or tubercle on the 

 hind coxge. The position of the first recurrent nervure at the 

 apex of the first cubital also separates this genus from Spho- 

 drotes, in which both recurrent nervures are received by the 

 second cubital cell, or in one species the first interstitial with 

 the first transverse cubital nervure. 



