1928] 
Bees Collected by Nathan Banks 
177 
Subgenus Chloralictus Robertson 
The small bees referable to this group are not readily dif- 
ferentiated without the aid of the microscope. In the following 
key the characters are mostly microscopic. 
Tegulse closely punctured; front densely punctured; malar region 
with two little tubercles ; flagellum light brown beneath except 
at base; antennal joints 3 to 5 all short, transverse, much short- 
er than those following; mesothorax coarsely microscopically 
tessellate, with rather close fine punctures; area of metathorax 
with strong but irregular rugae, going from base to apex; scu- 
tellum and posterior face of metathorax roughened; hind spur 
with four long oblique teeth; first abdominal segment smooth 
and polished, with microscopic transverse lineolation, the base 
hairy; basal corners of second and third segments, and fourth 
very broadly right across, with minute appressed plumose 
hairs Halicius goethalsi sp. n. 
Tegulse not punctured; hind spur with few strong spines. . . . . . . 1 
1. Area of metathorax large, not sharply defined, microscopically 
reticulate, with short plicse at base only; front very densely 
punctured; antennal joints 3 to 5 short, the following in- 
creasingly longer, but 6 not greatly longer than 5; mesothorax 
microscopically tessellate and rather closely punctured; scu- 
tellum rather sparsely punctured; hind spur with three large 
spines or teeth Halicius lesseppsi sp. n. 
Area of metathorax with strong rugse from base to apex; scu- 
tellum in middle with a broad band of small crowded punctures, 
and on each side of this a sparsely punctured area 2 
2. Larger and more robust; mesothorax dullish and coarsely 
punctured, the surface microscopically tessellate, the punctures 
closer posteriorly, on posterior middle of disc they are separated 
on the average by less than a puncture width; antennal joints 
3 to 5 not very short, 6 not much longer than 5; hind margin 
of third abdominal segment very narrowly testaceous 
Halicius gorgasi sp. n. 
Smaller, with mesothorax shining, not coarsely punctured, the 
punctures sparse on disc; front densely punctured; antennal 
joints 3 to 5 successively longer; base of second and third 
