Nematocampa resistaria — Details

Bordered Thorn, Filament Bearer learn more about names for this taxon

Overview

Comprehensive Description

General Description

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A small, tan geometrid with an intricate pattern of maroon lines, bands and venation. Forewing apex slightly falcate. This species is immediately recognizable; there are no other species like it in Alberta.
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Distribution

Distribution

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BC to Nova Scotia, south to FL and CA (McGuffin 1987).
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National Distribution

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Canada

Origin: Native

Regularity: Regularly occurring

Currently: Present

Confidence: Confident

Type of Residency: Year-round

United States

Origin: Native

Regularity: Regularly occurring

Currently: Present

Confidence: Confident

Type of Residency: Year-round

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Ecology

Habitat

Habitat

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Deciduous and mixedwood forests and woodlands.
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Trophic Strategy

Trophic Strategy

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Larvae are generalists on both deciduous and coniferous trees and shrubs. Often occurs on Douglas-fir (Pseudotsuga), hemlock (Tsuga), fir (Abies), spruce (Picea), willow (Salix), white birch (Betula papyrifera), hazelnut (Corylus); also low-growing plants such as strawberry (Fragaria) and carrot (Daucus) (McGuffin 1987).
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Life History and Behavior

Cyclicity

Cyclicity

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Peak flight activity in Alberta is from late July to early August.
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Life Cycle

Life Cycle

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The common name Filament Bearer stems from the bizarre caterpillar of this species, which is able to evert two pairs of long tentacle-like structures dorsally on the abdomen (See Ives & Wong 1988, Wagner et al. 2001). The function of these structures is unknown, but perhaps is meant to mimic dead, dried flower parts or plant debris. Pupation occurs within a cocoon among plant foliage, and the egg hibernates (McGuffin 1987).
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Molecular Biology and Genetics

Molecular Biology

Barcode data: Nematocampa resistaria

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The following is a representative barcode sequence, the centroid of all available sequences for this species. 

 
There are 5 barcode sequences available from BOLD and GenBank.  Below is a sequence of the barcode region Cytochrome oxidase subunit 1 (COI or COX1) from a member of the species.  See the BOLD taxonomy browser for more complete information about this specimen and other sequences.
 
XAD753-05|2005-ONT-552|Nematocampa resistaria| ---------------------------------------ACATTATATTTTATTTTTGGAATTTGAGCAGGAATAGTTGGTACTTCTTTA---AGATTATTAATTCGAGCTGAATTAGGTAATCCTGGTTCTTTAATTGGAGAT---GATCAAATTTATAATACTATTGTAACTGCACATGCTTTTATTATAATTTTTTTTATAGTAATACCTATTATAATTGGAGGATTCGGGAATTGATTAGTACCTTTAATA---CTAGGTGCTCCAGATATGGCTTTCCCTCGAATAAATAATATAAGATTTTGATTACTTCCTCCTTCTATTACATTATTAATTTCCAGAAGAATTGTGGAAAATGGAGCTGGTACTGGATGAACTGTTTATCCTCCTTTATCATCTAATATTGCTCATGGAGGTAGCTCTGTGGATTTA---GCTATTTTTTCTTTACATTTAGCGGGTATTTCTTCTATTTTAGGAGCTATTAATTTTATTACTACAATTATTAATATACGATTAAATAATTTATCATTTGATCAAATACCTTTATTTGTTTGATCTGTATGTATTACAGCATTTTTATTATTATTATCCTTACCTGTATTAGCTGGA---GCTATTACTATACTATTAACTGATCGAAATTTAAATACATCATTTTTTGATCCTGCGGGAGGAGGAGACCCTATTTTATATCAACATTTA------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 
-- end --

Download FASTA File
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Statistics of barcoding coverage: Nematocampa resistaria

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Barcode of Life Data Systems (BOLDS) Stats
Public Records: 5
Species: 130
Species With Barcodes: 1

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Conservation

Conservation Status

Conservation Status

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Not of concern.
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NatureServe Conservation Status

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Rounded Global Status Rank: G5 - Secure

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National NatureServe Conservation Status

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Canada

Rounded National Status Rank: NNR - Unranked

United States

Rounded National Status Rank: NNR - Unranked

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Wikipedia

Nematocampa resistaria

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The Filament Bearer, Bordered Thorn or Horned Spanworm Moth (Nematocampa resistaria) is a moth of the Geometridae family. It is found from British Columbia to Nova Scotia, south to Florida and California.

Caterpillar

This species was split from the Eurasian Nematocampa limbata.

The wingspan is 19-25 mm. Adults are on wing from May (or April in the deep south) to August. There is one generation in the north, two generations in the middle states and multiple generations in the southern part of the range.

Larvae feed on various deciduous and coniferous trees and shrubs, including Pseudotsuga, Tsuga, Abies, Picea, Salix, Betula papyrifera, Corylus, Fragaria and carrot Daucus.

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Names and Taxonomy

Taxonomy

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Comments: Species revised by Ferguson (1993) and includes both N. limbata and N. expunctaria of Hodges, 1983.

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