Cookies Policy
X

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies.

I accept this policy

Find out more here

Larval head structures of Omoglymmius hamatus and their implications for the relationships of Rhysodidae (Coleoptera: Adephaga)

No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The full text of this article is not currently available.

Brill’s MyBook program is exclusively available on BrillOnline Books and Journals. Students and scholars affiliated with an institution that has purchased a Brill E-Book on the BrillOnline platform automatically have access to the MyBook option for the title(s) acquired by the Library. Brill MyBook is a print-on-demand paperback copy which is sold at a favorably uniform low price.

Access this article

+ Tax (if applicable)
Add to Favorites
You must be logged in to use this functionality

image of Insect Systematics & Evolution

Internal and external features of the head of larvae of Rhysodidae were analyzed phylogenetically. A detailed description of the head of the larva of Omoglymmius hamatus (LeConte) is given. Omoglymmius and Rhysodes belong to a monophyletic unit which is characterized by an isolated submental sclerite and a strongly elongated prementum. The presence of a broad, undivided submental plate is a possible synapomorphy of Rhyzodiastes and Clinidium. The following features are considered autapomorphies of Rhysodidae: head extremely widened posteriorly, stemmata absent, frontoclypeolabral apotome strongly extended posteriorly, snout-like nasal projection, maxillolabial complex retracted, galea extremely modified, caudal premental apotome, labial palpi 1-segmented. Significant features indicate a sister-group relationship between Gyrinidae and the remaining Adephaga. Rhysodidae belong to a monophyletic group which comprises Geadephaga excl. Trachypachini. A sistergroup relationship between Rhysodidae and all other taxa of this monophylum is proposed as a working hypothesis. The wood-boring, xylophagous-fungivorous habits of Rhysodidae are almost certainly a secondary feature as indicated by the absence of the mandibular mola and other features. The hypothesis of a close relationship between Rhysodidae and Scaritini does not accord with the results of this study.

Affiliations: 1: R. G. Beutel, Institut für Biologie (Zoologie), RWTH, W-5100 Aachen, Federal Republic of Germany

Loading

Full text loading...

/content/journals/10.1163/187631292x00281
Loading

Data & Media loading...

http://brill.metastore.ingenta.com/content/journals/10.1163/187631292x00281
Loading

Article metrics loading...

/content/journals/10.1163/187631292x00281
1992-01-01
2017-09-22

Sign-in

Can't access your account?
  • Tools

  • Add to Favorites
  • Printable version
  • Email this page
  • Subscribe to ToC alert
  • Get permissions
  • Recommend to your library

    You must fill out fields marked with: *

    Librarian details
    Your details
    Why are you recommending this title?
    Select reason:
     
    Insect Systematics & Evolution — Recommend this title to your library
  • Export citations
  • Key

  • Full access
  • Open Access
  • Partial/No accessInformation