|T O P I C R E V I E W
||Posted - 04/11/2013 : 19:13:05
1. Eyes divided, their lobes widely separated; head not reclining; intecoxal process much narrower than procoxae; mesosternum anteriorly truncate; body generally stout, antennae robust (Asia and Africa) ... Astathini (click on Gallery or on Forum for images)
-. Eyes entire; if divided divided, their lobes close; head reclining; intecoxal process larger; mesosternum anteriorly rounded, rarely truncate; body generally elongated, antennae longer and fine (Worldwide) ... Saperdini (click on Gallery or on Forum for images)
Note. Some very ancient authors recognised inside Saperdini three further tribes:
Gleneini: characterised by elytra with an humeral ridge
Phytoecini: characterised by hooked claws
Obereini: characterised by elongated body.
Such tribes are completely meaningless since:
- Saperda tridentata, Eutetrapha, Pareutetrapha, Paramenesia have an humeral ridge, but are ranked among Saperdini
- Glenea, Gleneonupserha, Nupserha have hooked claws but are ranked among Gleneini ;
- Stenostola, Neoserixia, Paraserixia have hooked claws but are ranked among Saperdini . Moreover, Heteroglenea (Gleneini?) has protarsi with hooked claws and metatarsi with normal claws.
- The elongate body is a relative concept: the taxonomic position of Obereopsis, Chlorisanis, having intermediate shape, is overlooked by those authors