Key to Mesostruma of the southwestern Australian Botanical Province

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This worker key is based on: Heterick, B. E. 2009a. A guide to the ants of South-western Australia. Records of the Western Australian Museum, Supplement 76: 1-206. Part 2.

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1

  • Propodeum armed with short spines or denticles, or with lamellae . . . . . 2

2

return to couplet #1

  • Seen dorsally, humeral angles of promesonotum armed with short spines, or, at least, distinct denticles . . . . . 3
  • Seen dorsally, humeral angles of promesonotum rounded . . . . . 4

3

return to couplet #2

  • Propodeal lamellae well-developed; postpetiole with lateral flanges (Figure 596) . . . . . Mesostruma laevigata
Figure 596.
Mesostruma laevigata casent0172475 head 1.jpg
Mesostruma laevigata casent0172475 profile 1.jpg
  • Propodeum with short denticles; postpetiole without lateral flanges (Figure 597) . . . . . Mesostruma eccentrica
Figure 597.
Mesostruma eccentrica casent0172471 head 1.jpg
Mesostruma eccentrica casent0172471 profile 1.jpg

4

return to couplet #2

  • Dorsum of mesosoma with dense, almost confluent shallow punctures with cuticular sculpture between punctures (Figure 598) . . . . . Mesostruma inornata
Figure 598.
Mesostruma inornata casent0172474 head 1.jpg
Mesostruma inornata casent0172474 profile 1.jpg
  • Dorsum of mesosoma with scattered, well-separated punctures; cuticle between punctures smooth and unsculptured (Figure 599) . . . . . Mesostruma loweryi
Figure 599.
Mesostruma loweryi casent0172477 head 1.jpg
Mesostruma loweryi casent0172477 profile 1.jpg