Rindgea subterminata
(Barnes & McDunnough, 1913)
Rindgea subterminata is a of geometrid in the Geometridae, described by Barnes and McDunnough in 1913. It belongs to the Rindgea, a group of North American moths characterized by relatively plain, grayish-brown coloration and subtle wing patterns. The species is known from western North America, where are active during the summer months.
Pronunciation
How to pronounce Rindgea subterminata: /ˈrɪndʒiə ˌsʌbtərmɪˈnɑːtə/
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Identification
Distinguished from similar Rindgea by the relatively plain, unmarked appearance of the hindwing and the subtle, incomplete terminal line on the forewing (hence 'subterminata'). Rindgea cyda is larger with more contrasting pattern; Rindgea nigracomma has distinct dark comma-shaped marking on forewing. Genitalia examination may be required for definitive identification.
Appearance
have wingspan approximately 25-30 mm. Forewings grayish-brown with faint darker transverse lines; hindwings paler, sometimes with weak discal spot. Wing margins slightly scalloped. Body slender, matching wing coloration. in both sexes. Larvae unknown.
Habitat
Coniferous and mixed forests, particularly in mountainous regions. Associated with pine and fir woodlands. Elevation range approximately 1500-2500 meters where recorded.
Distribution
Western North America: recorded from Arizona, New Mexico, Colorado, Utah, Wyoming, and Montana. Disjunct possible in southern California mountains.
Seasonality
active June through August; peak activity in July. Single brooded. Larval stage timing unknown.
Behavior
, attracted to light. pattern weak and fluttering, typical of geometrid moths. Resting posture with wings held flat or slightly tented over body.
Ecological Role
likely serve as prey for including bats and owls. Larval unknown; if folivorous, may contribute to nutrient cycling in coniferous forest .
Human Relevance
No economic significance. Occasionally collected by lepidopterists. Not known to cause damage to forestry or agriculture.
Similar Taxa
- Rindgea cydaLarger size (wingspan 35-40 mm) and more contrasting forewing pattern with distinct dark line; hindwing with more prominent markings.
- Rindgea nigracommaDistinct black comma-shaped spot on forewing discal area; otherwise similar size and general coloration.
- Iridopsis defectariaSimilar plain grayish appearance but belongs to different ; forewing with more angular outer margin and distinct dark dash.
More Details
Taxonomic history
Originally described as Boarmia subterminata by Barnes and McDunnough, 1913. Transferred to Rindgea by Rindge (1958) in his revision of the Boarmiini. The name honors Raymond C. Rindge, American lepidopterist.
Collection records
Specimens in collections of American Museum of Natural History, California Academy of Sciences, and Smithsonian National Museum of Natural History. Relatively infrequently collected; may be locally common but overlooked due to cryptic coloration.