Centris smithii Cresson

Centris smithii Cresson

C. smithii female

C. smithii female

C. smithii female

C. smithii female

C. smithii female

C. smithii female

Centris subgenus Centris (From The Bees of the World –  Michener 2007)

  • Marginal cell shorter than distance from its apex to wing tip
  • Whipe like setae arising behind summit of eye absent, or if present, then reaching only to anterior margin of scutum.
  • Medium sized, to very robust
  • First flagellar segment often longer than the scape
  • Stigma (black patch by marginal cell) is very short and no wider than the prestigma measured to the wing margin (black line going to stigma)
  • Scopa on the hind basitarsus is extraordinarily large and dense

FEMALE (From The Bees of the World –  Michener 2007) 

  • Scutellum rounded without lobes, tubercles or separate convexities
  • Mandible 3 or 4 toothed, without tooth on inner surface at base of distal tooth; pygdial plat without longitudinal groove and spatulate apex
  • Front and mid tibiae without combs for collecting floral oil
  • Front basitarsus with comb on full length of anterior margin
  • Terga with or without metallic reflections, sometimes with transverse yellow bands
  • Basitibial plate with defined secondary plate with sharp projecting margins
  • Margins of secondary plate extending basad both anteriorly ad posteriorly
  • Clypeus with yellow or white inverted T or Y

MALE (From The Bees of the World –  Michener 2007) 

  • Scutellum rounded without lobes, tubercles or separate convexities
  • Maxillary palpus 5 or 6 segmented (4 or 5 free segments)
  • Hind leg of male usually not swollen
  • Hind basitarsus of male without spine or elevated carina
  • Middle basitarsus without comb for collecting oil
  • Pygdial plate absent or not well defined, if present lateral margins covered by pubescence and not elevated
  • Mandible with acetabular groove ending between proximal and subapical (median) teeth; posterior femur not swollen
  • Basitibial plate absent, pygidial plate absent, apical margin of T7 bilobed
  • Clypeus yellow with upper lateral margin black

SPECIES:  (short description from:Island: Fact And Theory in Nature by James D. Lazell, book excerpts available on google books)

  • abdomen is blue-ish with the last several segments bright yellow
  • Males also have short yellow stripes on the side of segment 2-3.
  • The face has yellow marks – more extensive in the male

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