554 Col. (1 T. Bingham on South African 



12. LiACOS (Triliacos) nigrita, Fabricius, 



Scolia nigrita, Fabr., Spec. Ins., i, 1781, p. 452 ^. 



Scotia (Liacos) nigrita, Sai., Cat. Hyin. B. M., iii, 1855, 



p. 114 $. 

 Liacos {Triliacos) nigrita, Sauss. and Sich., Cat. Spec. Gen. 



Scol.. 1864, p. 35 ? $. 

 Liacos nigrita, Sauss., Grandid. Hist. Madagasc, xx, pt. 1, 



1892, p. 227, pi. 5, figs. 11 and 12 $ $. 



Natal % (Coll. W. W. Saunders) ; Rhodesia : Melsetter, 

 Gazaland $ (G. Marshall), Natal ^ {G. F. Leigh). 



13. Elis (DiELis) DIMIDIATIPENNIS, Saussure. 



Ells dimidiatipcnnis, Sauss., Mem. Soc. Phys. and Hist, 

 nat. Geneve, xiv, pt. 1, 1854 (Mel. Hyni.), p. 64 $. 



Scolia fenestrctta, Sni., Cat. Hym. B.M., iii, 1855, p. 104 $. 



Mis (Dielis) dimidiatipennis, Sauss. and Sich., Cat. Spec. 

 Gen. Scol., 1864, p. 168. 



Rhodesia : Mashonaland, Salisbury 5000 ft. {G. 

 Marshall). 



14. Elis (Dielis) signata. Smith. 



Scolia signata, Sm., Cat. Hym. B.M., iii, 1855, p. 105 $. 

 Elis {Dielis) signata, Sauss. and Sich., Cat. Sp. Gen. Scol., 

 1864, p. 176 ?. 



Rhodesia: East Loangwa, Petauke 2400 ft. 2 $ 6 ^ 

 {S. A. Neavc) ; also 1^1^ from other Rhodesian localities 

 and 2^1^ Salisbury (6^. Marshall). The author's name 

 is on a ^ from Salisbury (1895), which is regarded as the 

 type of the following description. 



The ^, which has not before been described closely, 

 resembles the %, but the head and thorax are densely 

 clothed with short hoary yellowish pubescence that hides 

 the sculpture, the wings are hyaline with only the very 

 faintest tinge of yellow, and the transverse yellow bands 

 on the segments of the abdomen above are very broad and 

 deeply excavated on each side. In the ^ these bands are 

 only slightly laterally excavate. 



15. Elis (Dielis) collaris, Fabricius. 



Tiphia collaris, Fabr., Syst. Ent., 1775, p. 354. 

 Scolia thoracica, Fabr., Mant. Ins., i, 1787, p. 281 (nee. 

 Tiphia thoracica^ Fabr., Ent. Syst., Suppl.,1798, p. 254). 



