Dactylolabis montana

Osten Sacken, 1860

Dactylolabis montana is a of limoniid crane fly inhabiting madicolous environments in eastern North America. The species develops in thin water films on rock surfaces, with distinct larval and pupal stages described. It occurs from Ontario and Newfoundland south to Kansas, Arkansas, Mississippi, Tennessee, and South Carolina.

Dactylolabis montana by Nick Block. Used under a CC BY 4.0 license.

Pronunciation

How to pronounce Dactylolabis montana: //ˌdæktɪloʊˈleɪbɪs mɒnˈtænə//

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Identification

Larvae can be distinguished from the related D. hudsonica using morphological characters detailed in published larval keys. Specific diagnostic features for are not documented in available sources.

Images

Habitat

Madicolous : thin water films flowing over rock surfaces (hygropetric environments). These are specialized aquatic microhabitats characterized by continuously wet rock with minimal water depth.

Distribution

Eastern North America: Canada (Ontario to Newfoundland) and USA (south to Kansas, Arkansas, Mississippi, Tennessee, and South Carolina).

Life Cycle

Development includes larval and pupal stages in madicolous . Specific duration of developmental stages or voltinism (number of per year) is not documented.

Similar Taxa

Dactylolabis hudsonicaCo-occurs in eastern North American madicolous ; larvae require morphological examination for separation

More Details

Taxonomic note

Originally described as Limnophila montana by Osten Sacken in 1859 (or 1860), later transferred to Dactylolabis. The basionym reflects historical placement in Tipulidae sensu lato, now classified in Limoniidae.

Research history

and stages were formally described in a 1988 Canadian Entomologist paper, which provided the first larval key and detailed morphological descriptions of larvae and pupae for this .