Dorsal enclosure of propodeum without strong rugae, rugalae may be present on anterior portion of enclosure…2
The subgenus Micrandrena is mostly characterized by the small size of its members. All three species reported for Florida are the smallest of the genus. They usually have enlarged pterostigmata and often with broadened hind tibiae in the females. The ocelli are often close to the posterior margin of the vertex.
For more information, see Ribble, D.W. 1968. Revisions of two subgenera of Andrena: Micrandrena Ashmead and Deandrena, a new subgenus. Bulletin of the University of Nebraska State Museum 8: 237-394.
Dorsal enclosure of propodeum without strong rugae, rugalae may be present on anterior portion of enclosure…2
Hind tibiae slender, not widened, scopal hairs long, anterior hairs curving posteriorly, hairs greatly overlapping…A. nigrae
Dorsal enclosure of propodeum without strong rugae, rugalae may be present on anterior portion of enclosure…2
Clypeus dark, without light maculation…A. nigrae
County Records: Baker, Columbia, Jefferson, also found in Thomas Co., GA. A. neonana is only known from these Northern counties; it may extend further south but no records are at hand.
Locations: Lamont, Glen St. Mary
Dates: March 16-April 9, March :1, April:2; Ribble lists April 5-May 27 from across the entire range.
Plant: Prunus serotina, Ilex, Malus
Notes: This species resembles A. personata but has coarser rugae on the dorsal enclosure of the propodeum. The entire propodeum is coarsely rugose and the posterior and lateral surfaces are separated by a carina. The female hind tibia is narrow, not broad. Male has a yellow clypeus and dull antennae.
County Records: Jefferson (Ribble); also found in Lowndes and Thomas Counties, GA. Collected from only one county in Florida; likely more widespread in Northern Counties.
Locations: Lamont, FL
Dates: Primarily April and May
Plant: Mostly collected on Salix but also Rosaceae and Brassicaceae
Notes: Often confused with A. illinoiensis; Males may be distinguished from A. illinoiensis by lacking the distinct tuft of hair on sternum 6. Females have weak apical abdominal tergal fasciae on terga 2-4. Band on tergum 3 is interrupted medially. Some females have red abdomens. Mitchell's description is incorrect.
County Records: Sumter
Locations: Webster
Dates: June 25; Ribble lists most collections from April and May
Plant: Polylectic, often on Crataegus and Rosaceae, Rubus, Salicaceae, Hydrophyllaceae, and Umbelliferae.
Notes: New state record for Florida, previously known from Georgia. This single location has a number of unusual species that have unusual summer collection dates. These should be viewed with some suspicion. As the id of this species has not been confirmed, this could be a misidentification of A. neonana or A. nigrae.
Ribble states that A. personata can be separated from related species by the following: non-metallic reflections of integument; females have narrow facial fovea which are not widened dorsally, hind tibia is broad with short corbicular hairs, hairs overlap only slightly, hairs do not orientate in the same direction, short plumose hairs on scutum. Males have yellow clypeus, yellow parocular areas, and long shiny antennae with first flagellar segment much shorter than others.
