310 Natal Bees 
5. A spine at each side of metathorax ; punctures of mesothorax 
Ge: 4 rete Boacen oak sok ee cee hose soc ate punctulata, Ckll. 
No such spines on metathorax ; punctures of mesothorax 
CORPSES... cls nao. ee eetecr teen oa Ee RCM: aie Sere chubbi, Ckll. 
A female from Smithfield, O.R.C. (Kannemeyer), received from 
Dr. L. Péringuey, and determined by Friese as 1. argentatus, Gerst., 
runs in the above table to chubbz ; but is larger, with the wings not 
nearly so brown, and the eyes green (brown in chwbbi). 
HERIADES CHUBBI, Cockerell. 
Females. Pinetown, 11th December, 1916 (H. W. Bell Marley). 
HERIADES BEVISI, Cockerell. 
Males. Durban, 3lst July, 1916 (C. N. Barker). 
HERIADES TRICARINATUS, Sp. NOV. 
@. Length 75-8 mm.; black, with the usual whitish hair, forming 
very slender bands on abdomen ; ventral scopa silvery-white ; wings 
conspicuously dusky; clypeus with a very prominent keel, which 
extends its whole length, and also up the supraclypeal area, which is 
tricarinate, having a keel on each side; sides of face densely covered 
with pure white hair; maxillary palpi three-jointed ; basal declivity 
of first abdominal segment bounded by a strong rim. Very close to 
H., clypeatus, Friese, from the Transvaal, but larger, with dusky wings. 
Also very close to H. ekuivensis, Ckll., from Benguela, but easily 
separated as follows : 
Punctures of scutellum about one-fourth larger than on meso- 
thorax, but similar ; surface of mesothorax granular between 
the punctures, not polished, the intervals not over one-third 
diameter ofspuncturest sy cscsee: a0 4: Sees tricarinatus. 
Punctures of mesothorax, except anteriorly, smaller, the intervals 
over half diameter of a puncture ; scutellum cancellate with 
IMMENSE: PUN CULES sa. -e.-5: hac - ey cee ae ae eee eee ehwivensis. 
H. tricarinatus is represented by three females from Durban, 24th 
December, 1916 (C. N. Barker). 
