1927] Bees of the Genus Halictus from Miami , Florida 207 
lighter. First submarginal cell nearly as long as second and third 
together. Second considerably shorter than third, narrowed 
one-third towards the marginal. Disk of propodeum without a 
rim, narrowed towards the apex to such an extent as to appear 
somewhat triangular. Its surface finely granular, with a distinct 
median ridge, and about 8 lower and much shorter ones on each 
side. Legs dark, knees and tarsi testaceous. Abdomen shining 
throughout, especially the first segment, which is smooth. Re- 
maining segments with indistinct scattered punctures. 
Male. Inner orbits straighter than in the female, especially 
above. Face densely covered with a short white pubescence be- 
neath the antennae and on the sides above. Mandibles slender, 
very light testaceous, tips blackish. Labrum light testaceous. 
Antennae dark on upper surface, reddish underneath from the 
second joint on. Third joint longer than second. Mesonotum 
and scutellum shining, nearly bare. Ridges on disk of propodeum 
more numerous but less prominent than in the female. Knees, 
tips of tibiae and tarsi light yellow. Abdomen slender, very shiny 
with metallic reflections. Apex of first segment convex, forming 
a distinct depression between it and the second segment. 
Described from six males and seven females taken April 
20, May 20 and August 15 at Cutler, south of Miami, on the 
flowers of Bramia Monniera and Sesuvium maritimum. Type and 
allotype in the author’s collection. 
The low marshy grounds in this locality border on Biscayne 
Bay. On account of the influence of high tides and occasional 
storms which drive the water up over the shores, the soil sup- 
ports a typical halophytic (salt-loving) plant association, and 
the two species mentioned above (Bramia and Sesuvium) form 
low carpet-like patches between the shrubs and small trees in- 
habiting the dryer portions of the marsh. 
This species seems to be most closely related to tropicior 
Ellis, from Guatemala (8,219), but the female differs from that 
of tropicior as follows: clypeus produced nearly its entire length 
beyond the eyes, punctures uf mesonotum closer together (not 
scattered as in tropicior), abdominal segments with testaceous 
margins. 
