Brentidae

Male Brentus anchorago, photographed by Crysta Huszai.


Belongs within: Phytophaga.

The Brentidae are a family of often elongate weevils whose larvae burrow into wood, seeds or other plant structures. They differ from curculionid weevils in lacking elbowed antennae. Brentids are often strongly sexually dimorphic in rostrum morphology (Zborowski & Storey 2010).

Characters (from Lawrence & Britton 1991): Moderately to very elongate, parallel-sided to anteriorly narrowed beetles, usually subglabrous but occasionally clothed with decumbent or erect hairs. Rostrum usually long and narrow (short and broad in some species); antennae usually straight with short scape, except in Nanophyes where antennae are geniculate with very long scape; antennal club, where present, may be long and distinctly segmented, short and compact and indistinctly segmented, or unsegmented; antennal insertions usually between base and middle of rostrum, but occasionally near apex; labrum not visible; maxillae and labium reduced, with rigid maxillary palps and labial palps reduced and usually concealed on inner surface of labium; gular surfaces fused; prothorax without lateral carinae; pygidium concealed by elytra; first two ventrites solidly fused and much longer than ventrites 3-5 combined. Larvae slender and subcylindrical or short and broad, moderately to strongly curved and very lightly sclerotised. Frontal arms extending to mandibular articulations; labrum with pair of sclerotised rods; mesotergum armed with paired patches of asperities in some Brentinae; abdominal terga with two or four transverse folds; legs, if present, minute and sometimes consisting of dome-like lobes only.

<==Brentidae
    |--Exapion ulicis WFS04
    |--Ithystenus AY04
    |--Cyphogogus splendens B88
    |--Ectochemus decimmaculatus ZS10
    |--Paratrachelizus Kleine 1921 F54
    |    |--P. dorsalis (Boheman 1840) F54
    |    `--P. filiformis (Sharp 1895) F54
    `--Brentus Fabricius 1787 F54
         |--B. anchorago (Linnaeus 1758) F54
         |--B. approximatus Erichson 1847 F54
         |--B. armiger Herbst 1897 F54
         |--B. mexicanus Boheman 1840 F54
         `--B. variegatus Sharp 1895 F54

*Type species of generic name indicated

REFERENCES

[AY04] Austin, A. D., D. K. Yeates, G. Cassis, M. J. Fletcher, J. La Salle, J. F. Lawrence, P. B. McQuillan, L. A. Mound, D. J. Bickel, P. J. Gullan, D. F. Hales & G. S. Taylor. 2004. Insects 'Down Under' - diversity, endemism and evolution of the Australian insect fauna: examples from select orders. Australian Journal of Entomology 43 (3): 216-234.

[B88] Bouček, Z. 1988. Australasian Chalcidoidea (Hymenoptera): A biosystematic revision of genera of fourteen families, with a reclassification of species. CAB International: Wallingford (UK).

[F54] Franz, E. 1954. Brentidae aus El Salvador (Ins. Col.) Senckenbergiana Biologica 35: 89-90.

Lawrence, J. F., & E. B. Britton. 1991. Coleoptera. In: CSIRO. The Insects of Australia: a textbook for students and research workers, 2nd ed., vol. 2, pp. 543-683. Melbourne University Press.

[WFS04] Winks, C. J., S. V. Fowler & L. A. Smith. 2004. Invertebrate fauna of boneseed, Chrysanthemoides monilifera ssp. monilifera (L.) T. Norl. (Asteraceae: Calenduleae), an invasive weed in New Zealand. New Zealand Entomologist 27: 61-72.

[ZS10] Zborowski, P. & R. Storey. 2010. A Field Guide to Insects in Australia. Reed New Holland: Sydney.

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