Scopariinae

Moss-eating Crambid Snout Moths

Genus Guides

Scopariinae is a of Crambidae containing approximately 577 described . The subfamily has been recovered as monophyletic in molecular phylogenetic analyses. Larvae feed predominantly on Bryophyta (mosses and liverworts), distinguishing them ecologically from the related Crambinae which feed primarily on Poales. The subfamily has a worldwide distribution with particular diversity in Asia.

Scoparia rigidalis by (c) jimeckert49, some rights reserved (CC BY). Used under a CC-BY license.

Cosipara modulalis by (c) jimeckert49, some rights reserved (CC BY). Used under a CC-BY license.

Pronunciation

How to pronounce Scopariinae: /skoʊˈpærɪɪni/

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Identification

Scopariinae can be distinguished from Crambinae by larval plant association: Scopariinae larvae feed on Bryophyta while Crambinae larvae feed predominantly on Poales. wing venation, tympanal organ structure, and genitalia provide additional diagnostic characters at the tribal and generic levels. The includes the Scoparia, Eudonia, Micraglossa, and Helenoscoparia, among others.

Images

Habitat

occur in diverse including laurel forests, oreotropic forests, and other environments supporting moss and liverwort growth. The Micraglossa is specifically associated with laurel and oreotropic forests in Asia. The northern distributional limit of at least some species corresponds to the -10°C mean minimum temperature isotherm of the coldest month.

Distribution

Worldwide distribution with documented occurrence in Asia (China, Japan, India, Thailand, Vietnam, Nepal, Pakistan, Taiwan, Iran), Europe, St Helena Island, and other regions. The Micraglossa approaches its northernmost occurrence in China.

Diet

Larvae feed predominantly on Bryophyta (mosses and liverworts). This distinguishes Scopariinae from the related Crambinae, whose larvae feed primarily on Poales.

Host Associations

Bryophyta - larval mosses and liverworts

Behavior

The derived, nonadhesive -dropping has been observed in the related Crambinae and is associated with the use of Pooideae as plants; whether this behavior occurs in Scopariinae requires confirmation.

Ecological Role

Larvae function as primary consumers of mosses and liverworts in forest .

Similar Taxa

CrambinaeBoth are of Crambidae with similar , but distinguished by larval plant: Scopariinae on Bryophyta, Crambinae predominantly on Poales.

More Details

Tribal classification

The includes multiple tribes; the study by Leger et al. (2019) established a revised tribal classification based on molecular and morphological data, resolving several synonymies including Caradjaina and Cholius with Scoparia, and Dasyscopa, Dipleurinodes, and Eudipleurina with Eudonia.

Phylogenetic position

Molecular phylogenetic analyses based on five nuclear genes and one mitochondrial gene recover Scopariinae as monophyletic, though its relationships to other crambid remain ambiguous.