Larval morphology ofAgabus clypealis(Thomson, 1867) andA. pseudoclypealisScholz, 1933 and notes on their distribution (Coleoptera: Dytiscidae)
| Autor: | Helena Shaverdo, Joja Geijer, Anders N. Nilsson, Johannes Bergsten |
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| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
0301 basic medicine Larva biology Dytiscidae Anatomy Aquatic Science Larval morphology biology.organism_classification 010603 evolutionary biology 01 natural sciences 03 medical and health sciences 030104 developmental biology Holarctic Insect Science Instar Agabus Agabus clypealis Ecology Evolution Behavior and Systematics |
| Zdroj: | Aquatic Insects. 38:141-169 |
| ISSN: | 1744-4152 0165-0424 |
| DOI: | 10.1080/01650424.2017.1378361 |
| Popis: | The third instar larvae of Agabus clypealis (Thomson, 1867) and A. pseudoclypealis Scholz, 1933 are described. Important morphological structures (head, legs, and abdominal segment 8 with urogomphi) are illustrated. Both species share a completely sclerotized abdominal segment 6 with A. setulosus (J. Sahlberg, 1895). Morphological characters and species phenology are discussed in relation to the A. confinis-species group. All available literature records and some new and additional data on distribution of the two species are provided. Agabus clypealis is recorded for the first time from Estonia, and there is no reason to doubt the records of A. pseudoclypealis from Kazakhstan. |
| Databáze: | OpenAIRE |
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