Panurginae

Tribe Protandrenini Robertson

    Two genera are found in Florida, Protandrena, subgenus Heterosarus, and Pseudopanurgus. Michener (2000) states that these are closely related and Pseudopanurgus might be considered a subgenus of Protandrena.

Key to genera of Protandrenini (from Michener 2000)

Punctation strong, punctures usually contiguous on some areas of thorax; omaulus sharp, at least dorsally; hind tibia with upper margin a strong, untoothed carina…Pseudopanurgus

Punctation well marked but punctures not contiguous to fine, weak; omaulus smoothly curved from lateral to anterior mesepisternal surfaces; hind tibia with upper margin at least at base carinate with teeth or serrate…Protandrena

    Notes on using the Mitchell (1960) key. The species listed as under Pseudopanurgus are currently placed into several subgenera in the genus Protandrena (Subgenus Heterosarus, Metapsaenythia, Protandrena, and Pterosarus). Of the five Florida species, three are placed in Protandrena, subgenus Heterosarus and two are placed in the genus Pseudopanurgus. None are endemic to Florida. Two are spring flying and three are fall flying.

Genus Protandrena Cockerell

Subgenus Heterosarus Robertson

Key to Females

1. Dorsum of thorax with quite dense covering of short, brownish pubescence, more evident when viewed at an angle….P. (Heterosarus) illinoiensis

Dorsum of thorax without evident erect pubescence on scutum and scutellum (but fine hairs closely appressed)….2



2. Scutum and scutellum very finely, closely and uniformly punctate throughout, interspaces not exceeding diameter of punctures…. P (Heterosarus). pauper

Punctures of scutum more coarse and deep, to some degree separated in center of posterior half of disc, or those on scutellum more irregular and to some degree separated… P (Heterosarus). nebrascencis muesebecki

Key to Males

1.       Scape to some degree maculated… P (Heterosarus). nebrascencis muesebecki

Scape entirely black…2

2. Scutum with a quite dense covering of erect, yellowish pubescence, which does not obscure the close and fine, but deep and distinct punctures… P (Heterosarus). illinoiensis

Scutum practically bare, hairs fine and closely appressed to surface of scutum… P (Heterosarus). pauper

Andrenidae: Protandrena (Heterosarus) illinoiensis Cresson

County Records: none in FSCA

Locations:

Dates: Flies in May

Plants:

Notes: Both Mitchell and Timberlake mention this species as occurring in Florida. No photos are available at this time.

Andrenidae: Protandrena (Heterosarus) pauper Robertson

County Records: FSCA: Liberty, Leon

Locations:

Dates: spring flying; May

Plants:

Notes: Collects pollen especially from Ceonothus americanus (New Jersey Tea)

Female:  

Male:  

Andrenidae: Protandrena (Heterosarus) nebrascencis muesebecki Michener

County Records: Leon

Locations:

Dates: Fall flying (Sept.-Oct.)

Plants:

Notes:

Female:  

Male:  

Genus Pseudopanurgus Cockerell

Key to females

1. Pleura very coarsely rugoso-punctate, the scutum with equally coarse and deep punctures, but these not crowded even though very close over entire disc..P. rugosus

Pleura and scutum much less coarsely sculptured...P. solidaginis

Key to males

1. Supraclypeal area yellow at least in part.....P. solidaginis

Supraclypeal area usually entirely black, but sometimes with a narrow yellow border along clypeal suture....P. rugosus

Andrenidae: Pseudopanurgus rugosus Robertson

County Records: Leon

Locations: Tall Timbers

Dates: Fall flying (Oct.)

Plants:

Notes: new state record for Florida. Previously known from Georgia and Mississippi.

Male:

Andrenidae: Pseudopanurgus solidaginis

County Records: Leon (see map for P. rugosus above)

Locations: Tall Timbers

Dates: Fall flying (Oct.)

Plants:

Notes: new state record for Florida. Previously known from Georgia and Mississippi.

Female:  

Male: