metinfraepisternum

From meta- (“after”) +‎ infra- (“underneath”) +‎ epi- (“on”) +‎ Ancient Greek στέρνων (stérnōn, “breast”).^[1]

metinfraepisternum (plural metinfraepisterna)

1. (rare, entomology) In Odonata, a ventral subdivision of the metepisternum.^[1]
   • 1918, Illinois. Natural History Survey Division, Bulletin‎^[2], page 433:

     The presternum and sternum are fused, and the cephalo-lateral arms extend around the cephalic margins of the coxae and unite with the metinfraepisterna.

   • 1925-, Entomological news‎^[3], page 200:

     On the thorax the mid-dorsal black stripe covers half of the mesepisternum, the humeral is almost as wide as the pale antehumeral, a black line is present on the second lateral suture, and the metinfraepisternum is outlined in black.

   • 2012, A review of the New Guinean genus Paramecocnemis Lieftinck (Odonata: Platycnemididae), with the description of three new species‎^[4], page 164:

     [...] except for a narrow dark margin along metapleural suture, becoming broader toward metinfraepisternum[.]

   • 2021, Burmagomphus williamsoni eddiei subsp. nov. (Odonata, Gomphidae) from northern Cambodia‎^[5], page 1:

     The new subspecies differs from the nominotypical one by a very prominent subapical cercal tooth, the convex inner margin of the paraproct arms and a trapezoid incision between them, the antehumeral stripe finely separated from that on the metinfraepisternum in males and strong singular spines at the sides of the occipital plate in females.