Subgenus Evylaeus, one species
Subgenus Hemihalictus, six species
Modified abbreviated keys from Gibbs 2013 Zootaxa 3672: 1-116.
Key to females
1. Mesoscutum rugose anteriorly, reticulate-punctate between parapsidal lines;
lateral and posterior surfaces of propodeum covered with dense appressed hairs,
obscuring integument and sharply contrasting against bare metapostnotum ....
L.(Hemihalictus) nelumbonis
Mesoscutum punctate anteriorly, punctate with clear interspaces between parapsidal lines;
lateral and posterior surfaces of propodeum with sparse erect hairs,
not obscuring integument or sharply contrasting against metapostnotum ....2
2. Mesepisternum entirely coarsely rugose, including region adjacent to mesocoxa....
L.(Hemihalictus) pectorale
Mesepisternum rugulose or punctate, at least in part,
never coarsely rugose in region adjacent to mesocoxa
(if mesepisternum moderately rugose then head wide: L/W ratio = 0.83-0.93)....3
3. Pronotum with sharply angled dorsolateral ridge (metasoma colour variable; reddish orange to black-brown);
metapostnotum coarsely rugose; mesoscutum polished, shiny....
L.(Hemihalictus) sopinci
Pronotum smoothly rounded, without sharply angled lateral ridge (metasoma colour black-brown)....4
4. Mesepisternum punctate (size small, length 4.8-6.6 mm); T2 and T3 with basolateral patches of tomentum....5
Mesepisternum rugulose to rugose (size and metasomal terga pubescence variable)....6
5. Head short (L/W ratio = 0.94-0.99)....L.(Hemihalictus) birkmanni
Head long (L/W ratio = 1.02-1.09)....L.(Hemihalictus) macoupinense
6. Metapostnotum coarsely rugose; head wide (L/W ratio = 0.83-0.93); inner metatibial spur denticulate,
teeth shorter than width of rachis....
L.(Evylaeus) cinctipes
Metapostnotum rugulose; head longer (L/W ratio > 0.92);
inner metatibial spur serrate T1 with subappressed hairs; two submarginal cells....
L.(Hemihalictus) lustrans
Key to males
1. Mandible elongate, extending well beyond opposing clypeal angle, nearly reaching opposing mandibular base; pronotal dorsolateral ridge sharply angled at least in part ....2
Mandible shorter, not reaching opposing clypeal angle or only slightly extending beyond it; pronotal dorsolateral ridge smoothly rounded ....3
2. Clypeus entirely black; two submarginal cells....L.(Hemihalictus) lustrans
Clypeus yellow; three submarginal cells....
L.(Hemihalictus) sopinci
3. Flagellomeres 2-10 short, length at most subequal to width; clypeus entirely black; mesepisternum coarsely rugose....4
Flagellomeres 2 10 long, length usually 1.5 to 2 times width; clypeus yellow distally....5
4. Mesoscutum rugose anteriorly; propodeum with sparse tomentum....
L.(Hemihalictus) nelumbonis
Mesoscutum punctate anteriorly; propodeum with erect hairs....
L.(Hemihalictus) pectorale
5. Mesepisternum smooth, with distinct punctures....6
Mesepisternum rugulose to rugose, without distinct punctures;
head wide (L/W ratio = 0.87-0.93); T2 apical impressed area with relatively dense punctation;
gonostylus short, with short setae; retrorse lobe absent....
L.(Evylaeus) cinctipes
6. Head long (L/W ratio = 1.06-1.09); supraclypeal area with sparse punctures (i=1-2d)....
L.(Hemihalictus) macoupinense
Head shorter (L/W ratio = 0.95-1.00); supraclypeal area with close punctures (i<=d)....
L.(Hemihalictus) birkmanni
County Records: Gadsden, Jackson, Leon, Liberty, Okaloosa
Locations:
Dates: Feb. 27-April 11March 15-May 17; March: 2, April: 4, May: 1
Plants: Hydrangea quercifolia, Prunus angustifolia,
Crataegus sp.
Notes: Photos are of L. (Evylaeus) arcuatus which has been determined to be a junior synonym of
L. (Evylaeus) cinctipes, of which photos are unavailable. Mitchell lists this species for Florida. It may be restricted to the
panhandle and or northern peninsula.
Female
County Records:
Locations:
Dates:
Plants:
County Records: Alachua, Columbia, Madison (also Thomas County, GA)
Locations:
Dates: April -Sept.
Plants: Pollen collected primarily from Pyropappus and other members
of the tribe Lactucaee of the Asteraceae
Notes: This species may occur further to the south and in the panhandle.
Female
Male
County Records: Alachua, Jackson, Manatee, Sarasota
Locations:
Dates: Dec. 26-May 19; Dec.:2, Feb.:1, March: 1, April:2, May:1
Plants:
Notes:
County Records: Alachua, Leon, Miami-Dade, Orange, Polk
Locations:
Dates: Feb. 18-April 13, Nov. 25; Feb.:2, March: 1, April: 5, Nov. :1
Plants: Erigeron quercifolius, Medicago lupulina,
Melilotus alba, Bidens mitis, Hydrocotyle umbellata,
Salix longipes, Sagittaria lancifolia
Notes: This species probably occurs throughout the state.
Female
County Records: Alachua, Bradford, Collier, Gadsden, Hernando, Jackson, Lake,
Leon, Levy, Marion, Miami-Dade, Orange, Seminole, Volusia
Locations:
Dates: Feb. 24-Nov. 13, Feb.: 3, March: 3, April: 4, May: 1, Aug: 1, Nov.:1
Plants:
Notes: This species probably occurs throughout the state.
Female
Male
County Records:
Locations:
Dates:
Plants:
