Difference between revisions of "Key to Odontomachus workers of Sumatra"

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(Created page with "This worker key is based on: Media:Satria, R., Kurushima, H. et al. 2015. The trap-jaw ant genus Odontomachus from Sumatra.pdf|Satria, R., Kurushima, H., Herwina, H., Yamane...")
 
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==1==
 
==1==
 
*Palp formula 4, 3; pronotal disc with long erect setae; mesopleuron with anteroventral ridge (arrow in Fig. 2C) . . . . . ''[[Odontomachus simillimus]]''  
 
*Palp formula 4, 3; pronotal disc with long erect setae; mesopleuron with anteroventral ridge (arrow in Fig. 2C) . . . . . ''[[Odontomachus simillimus]]''  
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{|
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|[[File:Satria et al. 2015 Odontomachus simillimus worker.jpg|thumb|300px|Satria et al. 2015. Figure 2. ''[[Odontomachus simillimus]]'']]
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*Palp formula 4, 4; pronotal disc without long erect setae; mesopleuron without anteroventral ridge (arrow in Fig. 5C) <span style="background:#F5F5F5">[[#2|'''. . . . . 2''']]</span>
 
*Palp formula 4, 4; pronotal disc without long erect setae; mesopleuron without anteroventral ridge (arrow in Fig. 5C) <span style="background:#F5F5F5">[[#2|'''. . . . . 2''']]</span>
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{|
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|[[File:Satria et al. 2015 Odontomachus latidens worker.jpg|thumb|300px|Satria et al. 2015. Figure 5.]]
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==2==
 
==2==

Revision as of 13:41, 24 May 2016

This worker key is based on: Satria, R., Kurushima, H., Herwina, H., Yamane, S. and Eguchi, K. 2015. The trap-jaw ant genus Odontomachus Latreille from Sumatra, with a new species description. Zootaxa. 4048:1-36.

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Odontomachus

1

  • Palp formula 4, 3; pronotal disc with long erect setae; mesopleuron with anteroventral ridge (arrow in Fig. 2C) . . . . . Odontomachus simillimus
Satria et al. 2015. Figure 2. Odontomachus simillimus


  • Palp formula 4, 4; pronotal disc without long erect setae; mesopleuron without anteroventral ridge (arrow in Fig. 5C) . . . . . 2
Satria et al. 2015. Figure 5.

2

return to couplet #1

  • Subapical tooth of mandible 2.5 times as long as broad (arrow in Fig. 11A) . . . . . 3
  • Subapical tooth of mandible as long as broad or shorter than broad (arrow in Fig. 5A) . . . . . 4

3

return to couplet #2

  • Size large (HL 3.13–3.55 mm; WL 4.15–4.65 mm); median part of vertex immediately along median furrow transversely striate; masticatory margin of mandible with more than 10 denticles; pronotal disc densely and transversely striate . . . . . Odontomachus minangkabau
  • Size small (HL 2.56–3.03 mm; WL 3.35–4.00 mm); median part of vertex immediately along median furrow smooth and shiny or sometimes with rough texture, but not transversely striate; masticatory margin of mandible with 10 or fewer denticles; pronotal disc usually concentrically striate (but rarely transversely striate) . . . . . Odontomachus rixosus

4

return to couplet #2

  • Masticatory margin of mandible with very small denticles or sometimes without denticles (only preapical angle is recognizable); propodeal dorsum anteriorly with a very weak median longitudinal depression; 1st gastral tergum with short erect setae; subpetiolar process in lateral view lobate and directed ventrally (Fig. 1A) . . . . . Odontomachus latidens
  • Masticatory margin of mandible with 6–9 distinct denticles which are reduced in size toward base of mandible; propodeal dorsum anteriorly without a median longitudinal depression; 1st gastral tergum without erect setae; subpetiolar process in lateral view triangular and directed posteriorly (Fig. 1B) . . . . . Odontomachus procerus