Overview

Distribution

National Distribution

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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Molecular Biology and Genetics

Molecular Biology

Barcode data: Oryzaephilus surinamensis

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


There is 1 barcode sequence available from BOLD and GenBank.

Below is the 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.

Other sequences that do not yet meet barcode criteria may also be available.

GGAATAGTGGGAACATCCTTA---AGAATCTTAATTCGAACAGAACTAGGAACAGCAGGTTCACTAATTGGAAAT---GATCAAATCTACAATACAATTGTAACCGCCCATGCATTTATTATAATTTTCTTTATAGTAATACCAGTAGTTATTGGAGGATTTGGAAACTGATTAATCCCTTTAATA---ATCGGAGCTCCTGATATAGCATTCCCACGACTTAATAATATAAGATTCTGATTATTACCTCCCTCAATCTCCCTTCTCTTAATCAGAAGAATTGTAGAAAAGGGAGCAGGAACAGGATGAACAGTATACCCCCCTCTCTCATCCAATTTAGCCCACAACGGAACATCTGTTGACCTA---GCAATCTTTAGATTACATTTAGCAGGAATTTCCTCCATTTTAGGAGCAATTAACTTTATTTCTACTATTTTCAATATAAAACCAAAAAAAATAAATATAGATCAAATACCTTTATTCTGTTGAGCTGTAATAATCACAGCCGTTCTACTCCTTCTTTCCCTCCCGGTCTTAGCAGGA---GCTATCACCATACTACTAACAGACCGAAATCTAAATACATCCTTCTTTGACCCCTCAGGAGGAGGAGACCCTATTTTATACCAACACCTGTTTTGATTTTTTGGT
-- end --

Download FASTA File

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Statistics of barcoding coverage: Oryzaephilus surinamensis

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 6
Specimens with Barcodes: 21
Species With Barcodes: 1
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Conservation

Conservation Status

National NatureServe Conservation Status

Canada

Rounded National Status Rank: NNR - Unranked

United States

Rounded National Status Rank: NNR - Unranked

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NatureServe Conservation Status

Rounded Global Status Rank: GNR - Not Yet Ranked

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Wikipedia

Oryzaephilus surinamensis

The sawtoothed grain beetle, Oryzaephilus surinamensis, is a slender, dark brown beetle 2.4–3 mm in size, with characteristic "teeth" running down the side of the prothorax. The sawtoothed grain beetle is a secondary pest, in the UK, that attacks damaged grain. Carolus Linnaeus, the Swedish naturalist who defined taxonomic arrangements for the animal, plant, and mineral kingdoms acquired samples of the sawtoothed grain beetle from Suriname (Dutch Guiana) and named the species "Oryzaephilus surinamensis" because of this. (It is Latin for "rice-lover from Surinam".)

A relative of the sawtoothed grain beetle of the same genus, the merchant grain beetle, is more likely to be found in domestic dwellings since it requires higher more stable temperatures and can be found infesting biscuits and fruit and nut products. The adults can fly but rarely do. They can be differentiated by looking at the distance of the eye to the prothorax: with the merchant grain beetle it is less than half the vertical diameter of the eye.

The sawtoothed grain beetle lays its eggs loosely on foodstuffs at the rate of 6–10 per day, with total being 370 per female. The larvae are to be found within the mass of the foodstuff in the top centimetre or two. As mentioned above damaged cereal is entered through broken kernels, and the larvae feed on the germ, causing damage by reducing the percentage of grains which will germinate.

The total life cycle is 20–80 days at 18–37 °C (64–99 °F).

The sawtoothed grain beetle can survive in unheated warehouses in the UK, and is considered the most important pest of home grown grain in the UK. The beetles survive the winter hiding in cracks and infest new stocks of grain the following year. Both insects are distributed throughout the world and regularly imported into the UK in unprocessed cereals, oil cakes, and from grains from other stores.

Treatment in bulk storage situations normally is carried out by fumigation, and in domestic situations finding the infested material, disposing of it and carrying out a residual spray to kill off stragglers.

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