Character Details

Character

Relationship of mesotrochantinal plate and metasternum [141]

Description

This character was defined by Gibson (1989) to describe the different types of mesocoxal articulation found in chalcidoids. In some pteromalids, the basic structure is like state 1, but the membranous area is sclerotized. State 3 is a specialized structure found in Oodera (Pteromalidae), female Eupelminae and both sexes of Calosotinae, in which the mesotrochantinal plate is extended posteriorly so that the trochantinal lobes are visible externally and articulate with the base of the mesocoxae. Citation: Gibson (1989: 6; 1995: 22).

States

-: unassigned
notes:
coded examples: Cales noacki Howard, 1907, Coccobius fulvus, Gonatocerus ashmeadi, Eriaphytis chackoi Subba Rao, 1980, Anaphes_D2564 (toggle remainder)
0: mesotrochantinal plate inflected internally, extended posteriorly to or almost to anterior edge of metasternum
5846_mximage
1.Epistenia
5845_mximage
2.Euryischia
 
notes:
coded examples: Cleonymus Latreille, 1809, Eurytoma gigantea, Australomymar sp. Chile, Nasonia vitripennis, Foersterella reptans (toggle remainder)
1: mesotrochantinal plate inflected internally, but with conspicuous membranous region separating posterior edge of plate from anterior edge of metasternum
5847_mximage
1.Brasema
5848_mximage
2.Neanastatus
5850_mximage
3.Tanaostigmodes albiclavus
7951_mximage
4.Yrka
 
notes:
coded examples: Cirrospilus coachellae, Megastigmus transvaalensis, Cheiloneurus flaccus, Yrka Boucek, 1988, Systolomorpha_D1436 (toggle remainder)
2: mesotrochantinal plate inflected internally and metasternum extending anteriorly between mesocoxal fossae so as to abut posterior edge of plate
5851_mximage
1.Eutrichosomella
5852_mximage
2.Aphelinidae: genus indet.
5853_mximage
3.Coccophagus
 
notes:
coded examples: Coccophagus rusti, Acmopolynema varium, Savzdargia hofferi (Pilipyuk, 1974), Eutrichosomella Girault, 1915, Encarsia bimaculata Heraty & Polaszek, 2000 (toggle remainder)
3: mesotrochantinal plate not inflected internally, extending posteriorly in same plane as mesosternum
notes: eupelminae female and calosotinae male and female
coded examples: Balcha indica Mani & Kaul, 1973, Eusandalum cyaneum (Ashmead) , Calosota metallica (Gahan, 1922), Licrooides Gibson, 1989, Archaeopelma deleteme (toggle remainder)