Tribe Anthidini

Genus Trachusa Panzer, 3 species

Three species in two subgenera are found in Florida. The subgenus Legnanthidium is monotypic.

These are ground nesting species that make their own burrows, unlike most other Megachilids.

Key to subgenera

    All tagmata with abundant yellow or cream-colored markings, including median tergal bands on metasoma.. T. (Heteranthidium)

    tracrafemterga.JPG

    Integument without yellow or cream-colored markings except usually on face of male and on apical metasomal tergal margins.. T. (Legnanthidium)

    traridfemtop.JPG.JPG

Subgenus Heteranthidium Cockerell, two species

Key to females

    Mandibles and tergum 6 of abdomen entirely black; tubercles carinate..T. crassipes

    tracrafemtongue
    tracrafemlasttergumsting

    Mandibles and tergum 6 of abdomen yellow maculated; tubercles not carinate..T. fontemvitae

Key to males

    Abdominal sternum 3 with a pair of short, slender spines..T. fontemvitae

    Tra font M stern

    Sternum 3 not spinose..T. crassipes


Megachilidae: Trachusa crassipes Cresson

County Records: Alachua, Levy, Okaloosa

tracra.jpg (72949 bytes)

Locations:

Dates: June 16-August 21; June: 1, July: 3, Aug: 1

Plants: Galactia

Notes: NC to Florida, coastal plain species

Female

tracrafemtop.JPG (38705 bytes)
tracrafemface.JPG (43764 bytes)
tracrafemantenna.JPG (32473 bytes)
tracrafemmandible.JPG (45041 bytes)
tracrafemtongueside.JPG (32836 bytes)
tracrafemvertex.JPG (59342 bytes)
tracrafemscutum.JPG (58997 bytes)
tracrafemtegula.JPG (46198 bytes)
tracrafempropodeum.JPG (50534 bytes)
tracrafemterga.JPG (48108 bytes)
tracrafemlasttergumsting.JPG (47180 bytes)
tracrafemside.JPG (36592 bytes)
tracrafemeye.JPG (39532 bytes)
tracrafemlegsventral.JPG (35965 bytes)
tracrafemwing.JPG (36602 bytes)
tracrafemwing2.JPG (33363 bytes)
tracrafemlegs.JPG (39386 bytes)

Megachilidae: Trachusa fontemvitae Schwarz

County Records: Clay, Highlands, Hillsborough, Marion, Putnam

trafon.jpg (73380 bytes)

Locations: Ordway-Swisher Biological Station

Dates: July, September, October, November

Plants: Balduina angustifolia, Liatris tenuifolia, Phoebanthus

Notes: NC to Florida, coastal plain species.

Female

Male

Tra font M dorhab
Tra font M face
Tra font M mandclyp
Tra font M vertscut
Tra font M abddor
Tra font M termdor
Tra font M lathab
Tra font M genapleur
Tra font M abdlat
Tra font M venthab
Tra font M stern


Subgenus Legnanthidium Griswold and Michener, 1 species

Megachilidae: Trachusa ridingsii Cresson

County Records: Alachua, Leon, Levy, Miami-Dade, Putnam, Santa Rosa

trarid.jpg (72759 bytes)

Locations: Ordway-Swisher Biological Station

Dates: April 27, August 10-27; April: 1, August: 6

Plants: Rhus glabra, Melilotus alba

Notes: NC to Florida, coastal plain species

Female

Male

traridmaletop.JPG (47064 bytes)
traridmaleface.JPG (46133 bytes)
traridmaleclypeus.JPG (48541 bytes)
traridmalevertex.JPG (62796 bytes)
traridmalescutum.JPG (69782 bytes)
traridmaletegula.JPG (59875 bytes)
traridmalescutellum.JPG (65079 bytes)
traridmaletergatop.JPG (46063 bytes)
traridmaleside.JPG (34724 bytes)
traridmaleeyeclose.JPG (30690 bytes)
traridmaleeye.JPG (47677 bytes)
traridmalemesopleura.JPG (58437 bytes)
traridmalerearlegs.JPG (34896 bytes)
traridmalegenitalside.JPG (33032 bytes)
traridmalegenitaldorsal2.JPG (35733 bytes)
traridmalegenitaldorsal3.JPG (58002 bytes)
traridmalegenitaldorsal4.JPG (30625 bytes)
traridmalegenitaldorsalclose.JPG (31560 bytes)
traridmalegenitalventral.JPG (37912 bytes)
traridmalewing.JPG (33147 bytes)