Title:

Characters of the larval head of Mycetina cruciata (Schaller) (Coleoptera: Endomychidae) and their phylogenetic implications

Subtitle:

Annales Zoologici, vol. 50, no 1

Creator:

Beutel, Rolf ; Weide, Daniela-Yvonne ; Bernhard, Detlev

Contributor:

Polska Akademia Nauk. Muzeum i Instytut Zoologii

Publisher:

Muzeum i Instytut Zoologii PAN

Place of publishing:

Warszawa

Date issued/created:

2000

Description:

Incorrect ISSN 0001-6454 ; Bibliogr. p. 14 ; P. 7-14 : ill. ; 24 cm

Type of object:

Journal/Article

Subject and Keywords:

Mycetina cruciata ; larva ; internal head structures ; feeding mechanism ; phylogeny

Abstract:

Head structures, especially internal features of the larva of Mycetina cruciataare described and discussed with respect to their functional and phylogenetic relevance. Spore masses are collected in the preoral chamber, mechanically treated by the mandibular molae, diluted with secretions, and sucked back by the unusually strong prepharyngeal and pharyngeal pumping apparatus. The presence of tube-like glands is a possible synapomorphy of all cucujiformsuperfamilies. Posterior tentorial arms which are shifted anteriorly and separated from the ten-torial bridge, thin and flattened dorsal tentorial arms, and reduced anterior arms are apomorphicfeatures shared by larvae of Mycetina, Coccinella, Glischrochilus, and cleroid larvae. The ori-gin of a strong bundle of M. tentoriostipitalis from the dorsal hypopharyngeal wall is another unusual derived character state shared by larvae of these taxa. Whether these structural affinities are due to a closer relationship between Endomychidae, Coccinellidae, Nitidulidae, and Cleroidea, or due to parallelism is a matter of further investigation. Presumably derived external features of the head are shared by several genera of Endomychidae. They suggest a closer relationship between Mycetina, Aphorista, Amphix, Epipocinae (excluding Periptyctus), and Bystus (Anamorphinae). Larval characters are in conflict with the monophyly of Lycoperdininae and Epipocinae.

Relation:

Annales Zoologici

Volume:

50

Issue:

1

Start page:

7

End page:

14

Resource type:

Text

Detailed Resource Type:

Article

Format:

application/pdf

Source:

MiIZ PAN, call no. patrz sygn. czas. P.255, vol 50, no 1 ; MiIZ PAN, call no. patrz sygn. czas. P.4314, vol 50, no 1 ; click here to follow the link

Language:

eng

Language of abstract:

eng

Rights:

Rights Reserved - Restricted Access

Terms of use:

Copyright-protected material. Access only on terminals at the Museum and Institute of Zoology of the Polish Academy of Sciences, may be used within the limits of statutory user freedoms.

Digitizing institution:

Museum and Institute of Zoology of the Polish Academy of Sciences

Original in:

Library of the Museum and Institute of Zoology of the Polish Academy of Sciences

Projects co-financed by:

Programme Innovative Economy, 2010-2014, Priority Axis 2. R&D infrastructure ; European Union. European Regional Development Fund

Access:

Closed