Key to Metallic Green Halictid (Family Halictidae) Bees of Blandy Experimental Farm
1) Posterior face of propodeum completely bordered by a prominent rim (genus Agapostemon) ...2






1) Posterior face of propodeum rounded, lacking a complete rim ...8


 

2) 10 Antennal Segments (female)...3






2) 11 Antennal Segments (male)...6


 



3) Abdomen black with white stripes ...Agapostemon virescens






3) Abdomen green ...4


 


 

4) Scutum shining, with 2 clear sizes of pits, large and small ...Agapostemon texanus






4) Scutum with a series of ridges, punctures, and roughenings ...5


 

5) Propodeum with a distinct triangular area of longitudinal ridges ...Agapostemon splendens






5) Propodeum without a distinct triangular area ...Agapostemon sericeus


 



6)Hind femur very thick, about twice as long as wide ...Agapostemon splendens






6) Hind femur thinner, about three times as long as wide ...7


 

7) V-shaped latitudinal ridge underneath 4th abdominal segment ...Agapostemon texanus




7) Low rounded ridge underneath 4th abdominal segment ...Agapostemon sericeus












7) No ridge underneath 4th abdominal segment ...Agapostemon virescens








 


8)  10 antennal segments (female) ...9






8)  11 antennal segments (male) ...11


 

9)  Hind tibial spur pectinate (comb-like);
     Top of 1st 2 abdominal segments with series of bristles
         (Genus Augochloropsis)...10





9) Hind tibial spur simple or serrated
     Top of 1st 2 abdominal segments without bristles...12



 

10) Abdomen smooth and shiny, bright green ...Augochloropsis metallica






10) Abdomen dulled by small pits, green or blue ...Augochloropsis sumptuosa


 

11) Labrum black (Genus Augochloropsis) ...15






11) Labrum yellow ...14


 

12)  Marginal cell of front wing pointed on wing margin
       Mandible with 1 large apical and one smaller subapical tooth (Genus Augochlorella)...13







12)  Marginal cell of front wing squared off near wing margin
       Mandible with 2 nearly equal teeth ...Augochlora pura



 

13) Striations on propodeum reaching rim ...Augochlorella striata






13) Striations on propodeum not reaching rim ...Augochlorella persimils


 

14) Edge of underside of 4th abdominal segment strongly curved in ...Genus Augochlorella. Distinction between A. striata and A. persimilis is unclear.





14) Edge of underside of 4th abdominal segment straight across ...Augochlora pura


 

15) Abdomen smooth and shiny, bright green ...Augochloropsis metallica






15) Abdomen dulled by small pits, green or blue ...Augochloropsis sumptuosa


 

                                                                                                  

Return To Blandy Bee Diversity Page