Mr. R. E. Turner on Fossorial Hymenoptera. 353 
middle of the second cubital cell, second at one-quarter from 
the base of the third cubital cell. 
Hab. Mlanje, Nyasaland (S. A. Neave), February and 
March. 
Probably the male of L. heterogamia, Sauss. 
Elis (Mesa) mutica, sp. n. 
3. Niger, sparse albo-pilosus; clypeo macula parva apicali, tibiis 
anticis extus, tarsisque anticis flavis; alis hyalinis, venis nigris. 
Long. 13 mm. 
3. Clypeus very broadly rounded at the apex; front 
punctured-rugose, the prominence above the base of the 
antenne strongly raised, bilobed ; vertex punctured; eyes 
widely emarginate. ‘Thorax closely punctured ; mesopleure 
and median segment rugose ; pronotum shorter than the 
mesonotum. Petiole about half as long as the swollen portion 
of the first segment which is very distinctly constricted at 
the apex, the whole segment shorter than the second and third 
combined ; second segment as long as the apical breadth, 
broadened from the base ; emargination of the seventh tergite 
almost obsolete. 
flab. Bulawayo, Rhodesia (G. Arnold), December. 
This is very near L£. reticulata, Cam., differing in the black 
mandibles and in the colour of the clypeus and legs. The 
form of the first segment is the same in both species. 
Elis (Mesa) spinicollis, sp. n. 
3. Niger; sparse albo-pilosus ; mandibulis, apice excepto, flavis ; 
pedibus anticis intermediisque rufo-testaceis; abdomine obscure 
cxeruleo-micante; alis hyalinis, venis nigris, 
Long. 14-16 mm. 
g. Clypeus very finely and closely punctured, covered 
with short white pubescence ; head rugosely punctured, the 
eyes widely emarginate. ‘lhorax closely punctured; the 
pronotum as long as the mesonotum, the anterior angles pro- 
duced into acute spines ; median segment rugose. Abdomen 
slender, minutely and closely punctured ; the first segment 
slender, as long as the second and third combined, the petiole 
about half as long as the remainder of the segment, which is 
not strongly swollen and only slightly constricted at the apex. 
Secoud segment as long as the apical breadth, broadened 
trom the base. Seventh tergite sparsely punctured, with a 
