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Black Earwig

Scientific Name
Chelisoches morio
Scientific Author
(Fabricius, 1775)
Taxonomy
(Dermaptera: Chelisochidae: Chelisochinae)
Pest Status
0 Unknown
Status
NZ - Exotic
Reliability
High
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Diagnostic Images (6)
Diagnostic Notes
Adult

Shiny, uniformly black; 1 or more distal segments of antennae white, tarsi and apices of tibiae yellow; 2nd tarsomere produced into a lobe lying below the 3rd tarsomere.

Male

Body length 12-18 mm; pronotum slightly transverse, posterior margin strongly convex; elytra and wings well developed; cuticle smooth; abdomen elongated, parallel-sided, last tergite transverse, depressed between bases of branches of forceps near posterior margin, forming a semi-circular depression, at anterior border of which are usually 4 small tubercles. Forceps of 2 types: long, slender, attenuate, with a jagged dilation on the inner margin basally; or short, stout, depressed, dilated, with crenulations on inner margin basally and 2 or 3 large teeth medially.

Female

Body length 14-18 mm, foreceps 2-6 mm. Each branch of forceps slender, not broadened, and almost straight; inner margin scarcely dentated. Pygidium rectangular, sometime hidden, sometimes projecting; posterior margin concave.

References

- Hudson, L. (1974). Dermaptera of Niue Island, and material from the Cook Islands. New Zealand Journal of Zoology, 1(1): 45-49.

- Hudson, L. (1973). A systematic revision of the New Zealand Dermaptera. Journal of the Royal Society of New Zealand, 3(2): 219-254.

- Brindle, A. (1970). The Dermaptera of the Solomon Islands. Pacific Insects, 12(3): 641-700.
More Information
Specimen Contact
MAF Plant Health & Environment Laboratory
Author
MAF Plant Health & Environment Laboratory
Created
20/12/2010 02:20 AEST
Last Updated
20/03/2014 20:04 AEST
Citation
MAF Plant Health & Environment Laboratory (2010) Black Earwig (Chelisoches morio) Updated on 3/20/2014 8:04:29 PM Available online: PaDIL - http://www.padil.gov.au.
Image Use
Free for use under the Creative Commons Attribution 3.0 Australia License

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