Mr. R. E. Turner on Fossorial Hymenoptera. 397 
pubescence. Propleure almost smooth; mesopleure rather 
sparsely punctured ; sides of the median segment coarsely 
rugulose, dorsal surface of the segment rugose ; the humeral 
calli, the apex of the median segment, and a long band on 
the hind margin of the mesopleurz clothed with very delicate 
shining silver pubescence. First joint of the petiole about 
as long as the hind femur and trochanter combined ; second 
tergite slender, half as long again as its apical breadth. 
Pulvillus well developed. Second abscissa of the radius 
about half as long as the first. 
3. Hyes very slightly convergent towards the clypeus ; 
posterior ocelli a little nearer to the eyes than to each other. 
Clypeus produced into a porrect tubercle in the middle of the 
anterior margin. Transverse striz of the pronotum more 
developed than inthe female. First joint of petiole distinctly 
longer than the hind femur and trochanter combined ; eighth 
sternite broadly truncate at the apex. 
Hab. British East Africa, Masongaleni, 3000 ft. (9. A. 
Neave), March 29-April 1; Kibwezi, 3000 ft. (S.A. Neave), 
April 2-4; Mitto Andei, 2500 ft. (S. A. Neave), March 
26-28; ‘Tiwa River, Ukamba (S. W. J. Scholefield), 
January 22-27. 
Nearly allied to saussure?, Buyss., but easily distinguished 
by the curious form of the pronotum and by the more strongly 
produced scutellum and postscutellum. The male clypeus 
differs strongly from that of the Palearctic species barbara, 
Lep., and judeorum, Kohl. 
Genus CHLORION. 
Chlorion (Isedontia) apicata, Bingh. 
Ammophila_apicata, Bingh. Fauna Brit. India, Hymen. i. p. 234 
(1897). 9. 
Chlorion (Isodontia) praslinius, Guér. 
Sphex praslinius, Guér, Voy. Coq., Zool. ii. p. 262 (1839). 
Sphex morosa, Sm, Journ. Proc, Linn, Soc., Zool. iv., Suppl. p. 122 
(1860). 
Chlorion (Proterosphex) paulinieri, Guér. 
Sphex Paulinieri, Guér. Magas, de Zool. xiii. P. 114, p. 8 (1843), @. 
Sphex exinua, Lep. Hist. nat. Insect. Hymén. iii p. 860 (1845), 3. 
This belongs to the group of aurulentus, Fabr., with the 
median segment transversely striated. Kohl wrongly treats 
the species as a true Chlorion in the most restricted sense, 
but had not seen a specimen, 
