Halictinae
Creators: name: Cockerell, T. D. A.
Publisher: name: Bernice P. Bishop Museum
Year: 1942
Subjects: Biodiversity
Taxonomy
Animalia

description: KEY TO HALICTINES OF PACIFIC ISLANDS   
 A. Abdomen black, or not at all metallic, or very slightly so (H. samoae, H. se111ic:yane 1ts......................   
.  
 B. Abdomen distinctly, or very faintly metallic (H. samoae, H. semic:yaneus).............. 5   
 1. Head and thorax black, not metallic (New Caledonia)............ H. polygoni Cockerell.   
Thorax brilliantly metallic.................................................................................................... 2  
2. Head greatly elongated (Samoa).............................. H. samoae Perkins and Cheesman.  
Headbrown..............................  
.  
3. Anterior femora and tibiae clear red; small species with purple mesonotum (Samoa)....................................................Echthralictusextraordinarius(Kohl),male.  
Anterior femora dark.............................................................................................................. 4  
 4. Mesonotum and scutellum very rich purple (Samoa).............. H. mackieae Cockerell.   
Mesonotum and scutellum green, metathorax blue (Samoa).................................... TODO TODO TODO  
~. Head greatly elongated; mesonotum brilliant blue green (Samoa)........................ TODO TODO TODO TODO TODO  
Headordinary................................  
.  
6. Legs clear red, including femora........................................................................................ 7  
Femora not thus red................................................................................................................ 8  
7. First two abdominal tergites entirely green (Samoa).... H. perpessicius Kohl, male.  
First two tergites black at base, with broad green hind borders (Samoa)............ TODO TODO TODO TODO  
8. Thorax entirely brilliant shining purple blue (Samoa)............................................................................................................................Echthralictus stevensoni Cockerell, male.  
Thorax not so colored............................................................................................................ 9  
9.Males............................................................................................................................................ 10  
Females............................................................  
.  
10. Abdomen olive green.............................................................................................................. 11  
Abdomen not olive· green........................................................................................................ 12  
11. Larger; flagellum broadly red beneath apically (Samoa).... H. zachlorus Cockerell.  
Smaller; flagellum black (Fiji)................................ H. fijiensis Perkins and Cheesman.  
12. Apical plate very large and broad (Guam).................................... H. saffordi Cockerell.  
Apical plate relatively small; abdomen black with an obscure greenish luster, varying to strongly purple (Guam).............................................. H. swezeyi Cockerell.  
 13. Small species from New Caledonia, and Rota (H. rotai!nsis); thorax above green, with no purple shades............................................................................................ 14   
 Larger species, or if rather small (H. siwaiinsis) thorax above largely purple blue, or rosy pink (H. rotai!nsis hombosteli)............................................................ 16   
14. Tegulae dark (New Caledonia)............................................................ H. risbeci Cockerell.  
Tegulae clear red...................................................................................................................... 15  
15. Abdomen dark purplish (Rota)...................................................... H. rotaensis Cockerell.  
Abdomen green (New Caledonia).............................................. H. crotalariae Cockerell.  
16. Mesothorax and scutellum shining, with brilliant blue purple tints; front tibiae and tarsi clear red (Fiji)............................................... H. suvaensis Cockerell.  
Thorax not so colored............................................................................................................ 17  
17. Tibiae and tarsi red (Samoa).......................................................... H. zachlorus Cockerell.  
Tibiae not thus red.................................................................................................................. 18  
18. Mesothorax and scutellum violet, contrasting with the blue-green metathorax, legs partly red (Guam)...................................................................... H. saffordi Cockerell.  
Mesothorax and scutellum rosy, contrasting with the dark blue green of metathorax; legs dark brown; a smaller species (Rota).................................................. TODO TODO TODO TODO  
Mesothorax and scutellum not at all violet or rosy...................................................... 19  
19. Legs black, without red.......................................................................................................... 20  
Legs partly red.......................................................................................................................... 22  
20. Mesonotum dull green; abdomen broad, tergites dark bluish with black margins (Solomon Islands).............................................................. H. viridiscitus Cockerell.  
Mesonotumshining............................................................  
21  
21. Larger, face broader; abdomen dark bluish green.............. H. saffordi Cockerell, var.  
 Smaller, face narrower; abdomen olive green, varying to more bluish green (Guam and Rota)................................................................................ H. swezeyi Cockerell.   
22. Mesonotum dull peacock green; abdomen not distinctly metallic (Samoa)........ TODO TODO TODO  
Mesonotum and scutellum shining brilliant green (Fiji)...................................,...... TODO TODO TODO TODO TODO
description: Published as part of Cockerell, T. D. A., 1942, Halictine Bees from Rota Island, pp. 191-194 in Insects of Guam I, Honolulu, Hawaii :Bernice P. Bishop Museum on pages 192-193, DOI: 10.5281/zenodo.5160456