De mieren (Formicidae) van Vlaanderen.
	Inleiding Atlas Vlaanderen Blauwtjes Bosmieren Checklist Collectie Communicatie Curiosa Databank Determinatiesleutel Fiches Focus op ... Fossielen Gynandromorfen Koloniestichting Laatste update Lieveheersbeestjes Links Literatuur Mierenhandel Nieuwe soort Nieuwe publicaties Plantenluizen Projecten Symbiose Taxonomen Werkgroep	Formicidae : Formicinae : Lasius : Cautolasius
Cautolasius Wilson Datum van de beschrijving: 1955 Beschreven door: Wilson, pagina 13. Referentie van de originele beschrijving: Wilson, E.O., 1955. A monographic revision of the ant genus Lasius. Bulletin of the Museum of Comparative Zoology of Harvard College 113 : 1-201. Synoniemen: Nederlandse naam: weidemieren *** * * * * typebeschrijving** Subgenus CAUTOLASIUS Wilson, new subgenus Subgeneritype : FORMICA FLAVA Fabricius, by present selection. I propose to separate the members of the flavus complex - flavus (Fabricius) , nearcticus Wheeler, alienoflavus Bingham, talpa Wilson, and fallax Wilson - as a distinct subgenus. This group of species is closely knit and shows a mixture of characters which on purely morphological grounds places it in a position intermediate between Lasius s. s. and chthonolasius. The worker caste closely resembles that of Chthonolasius, in having light body color, reduced eye size, and shortened maxillary palps. However, these are most likely convergent characters developed in connection with a common subterranean mode of life. The closest affinities of Cautolasius are to Lasius s. s., and it was probably derived from the latter subgenus. The queen is nonparasitic and very similar to Lasius s. s. in habitus, with the head small relative to the thorax. In all three castes the opening of the metapleural gland is as large as in Lasius s. s. Male mandible showing the maximum range of variation for the genus (sitkaensis to niger types), within a single species (flavus) . The most primitive member of the subgenus, L. alienoflavus Bingham, has terminal maxillary palp segments fully as long as those of L. (L.) sitiens Wilson, while the color variation of L. flavus overlaps that of sitiens. In final analysis the only character which by itself will separate the two subgenera is eye size. Yet the two still represent discrete groups, since sitiens is a secondarily specialized member of a phylogenetically remote species group. * * * * *

De mieren (Formicidae) van Vlaanderen.

Formicidae : Formicinae : Lasius : Cautolasius

Cautolasius Wilson

Datum van de beschrijving: 1955
Beschreven door: Wilson, pagina 13.
Referentie van de originele beschrijving:

Wilson, E.O., 1955. A monographic revision of the ant genus Lasius. Bulletin of the Museum of Comparative Zoology of Harvard College 113 : 1-201.

Synoniemen:

Nederlandse naam: weidemieren

* * * * *

typebeschrijving

Subgenus CAUTOLASIUS Wilson, new subgenus

Subgeneritype : FORMICA FLAVA Fabricius, by present selection.

I propose to separate the members of the flavus complex - flavus (Fabricius) , nearcticus Wheeler, alienoflavus Bingham, talpa Wilson, and fallax Wilson - as a distinct subgenus. This group of species is closely knit and shows a mixture of characters which on purely morphological grounds places it in a position intermediate between Lasius s. s. and chthonolasius. The worker caste closely resembles that of Chthonolasius, in having light body color, reduced eye size, and shortened maxillary palps. However, these are most likely convergent characters developed in connection with a common subterranean mode of life. The closest affinities of Cautolasius are to Lasius s. s., and it was probably derived from the latter subgenus. The queen is nonparasitic and very similar to Lasius s. s. in habitus, with the head small relative to the thorax. In all three castes the opening of the metapleural gland is as large as in Lasius s. s. Male mandible showing the maximum range of variation for the genus (sitkaensis to niger types), within a single species (flavus) . The most primitive member of the subgenus, L. alienoflavus Bingham, has terminal maxillary palp segments fully as long as those of L. (L.) sitiens Wilson, while the color variation of L. flavus overlaps that of sitiens. In final analysis the only character which by itself will separate the two subgenera is eye size. Yet the two still represent discrete groups, since sitiens is a secondarily specialized member of a phylogenetically remote species group.

* * * * *

De mieren (Formicidae) van Vlaanderen.

Inleiding

Formicidae : Formicinae : Lasius : Cautolasius