Published March 31, 2020 | Version v1
Taxonomic treatment Open

Oxyporus (Pseudoxyporus) occipitalis Fauvel 1864

Description

Оxyporus (Pseudoxyporus) occipitalis Fauvel, 1864

Published data. LESCHEN & ALLEN (1988): morphological description of E, L3 without chaetotaxy, P; HANLEY & GOODRICH (1993): hosts and distribution.

Larval morphology. Head and body sclerites without pigmentation; prementum with lateral setae 1/4 times as long as medial setae, sublateral setae absent; from two to three articulated spines on the inner lobe of mala.

Development. According to LESCHEN & ALLEN (1988), the third instar larvae left the fungal fruit body four days after collection and afterwards developed into adults in five days. HANLEY & GOODRICH (1993) showed that full development in laboratory at room temperature from egg to imago is very short and takes only 17 days as follows: egg: several hours; instar I: approximately one day; instar II: appr. one day; instar III: appr. six days; pupa: appr. six days.

Behavior. Females were typically laying eggs in the chamber built inside the gill layer of the fungi (LESCHEN & ALLEN 1988). According to HANLEY & GOODRICH (1993), O. occipitalis were collected only from the mature fungal fruit bodies. A male and female were once seen copulating on a host fungal cap. Hatching was said to begin several hours after collecting the eggs. In the Pacific Northwest (USA) this species was collected mostly in October, but overall across its range from September to November.

Notes

Published as part of Tokareva, Alexandra, Solodovnikov, Alexey & Konstantinov, Fedor, 2020, Immature stages and biology of the enigmatic oxyporine rove beetles, with new data on Oxyporus larvae from the Russian Far East (Coleoptera: Staphylinidae), pp. 245-268 in Acta Entomologica Musei Nationalis Pragae 60 (1) on page 262, DOI: 10.37520/aemnp.2020.014, http://zenodo.org/record/3736556

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Additional details

References

  • LESCHEN R. A. & ALLEN R. T. 1988: Immature stages, life histories and feeding mechanisms of three Oxyporus spp. (Coleoptera: Staphylinidae: Oxyporinae). Coleopterists' Bulletin 42 (4): 321 - 333.
  • HANLEY R. S. & GOODRICH M. A. 1993: Biology, life history and fungal hosts of Oxyporus occipitalis (Coleoptera: Staphylinidae), including a descriptive overview of the genus. Proceedings of the Washington State Entomological Society 55: 1003 - 1007.