Phlaeopterus houkae Hatch, 1957

Mullen, Logan J., Campbell, J. M. & Sikes, Derek S., 2018, Taxonomic Revision of the Rove Beetle Genus Phlaeopterus Motschulsky, 1853 (Coleoptera: Staphylinidae: Omaliinae: Anthophagini), The Coleopterists Bulletin 72, pp. 1-1 : 1-

publication ID

https://doi.org/ 10.1649/0010-065X-72.mo4.1

publication LSID

lsid:zoobank.org:pub:65F0E5A1-D396-4517-9E14-764B3073E0EF

persistent identifier

https://treatment.plazi.org/id/BA2A87DC-FFA7-FFF8-F0C2-FD74FEA0FAEF

treatment provided by

Diego

scientific name

Phlaeopterus houkae Hatch, 1957
status

 

10. Phlaeopterus houkae Hatch, 1957 View in CoL

( Figs. 3B View Fig , 10B View Fig , 15F View Fig , 17F View Fig , 19F View Fig , 21B View Fig , 28F View Fig , 31F View Fig , 33F View Fig , 34C–D View Fig , 36B View Fig , 37F–G View Fig , 39A–B View Fig , 40F, 42D View Fig )

Phlaeopterus houkae Hatch 1957: 58 View in CoL [original description]. Campbell and Davies 1991: 5; Herman 2001: 377; Bousquet et al. 2013: 89.

Type Locality. Mt. Baker , Washington, USA .

Redescription. Habitus: Length 3.1–4.0 mm. Dark brown; elytra usually lighter; legs, antennae, and mouthparts yellowish brown; abdomen usually reddish brown ( Fig. 3B View Fig ). Head: Width moderate, width across eyes to head length slightly wider than long ( Fig. 34C–D View Fig ). Interantennal groove vague or absent at least across midline of head. Anteocellar foveae vague, shallowly impressed. Eyes moderately pubescent on ventral half, with more than 10 setae ( Fig. 36B View Fig ). Antennomeres 3–10 each 1.6–2.0 times longer than wide; antennomeres 4–11 each with many sensory pits with papilliform projections ( Fig. 37F–G View Fig ). Ocelli present. Nuchal constriction absent. Epipharynx as in Fig. 33F View Fig . Hypopharynx as in Fig. 40F. Mandibular molar area with L-shaped row of setae ( Fig. 28F View Fig ). Labrum with sensory pores along anterior margin only ( Fig. 31F View Fig ). Maxilla with lacinia and galea as in Fig. 39A–B View Fig . Labial palpi with 3 rd palpomere 1.2–1.5 times longer than 2 nd palpomere. Gula as in Fig. 42D View Fig . Thorax: Pronotum narrow ( Fig. 15F View Fig ), length to width ratio = 0.7–0.8; ratio of pronotal width to head width = 1.3–1.4; maximum width subequal to width of elytra at bases; punctures separated by average distance equal to slightly less than diameter of a puncture; lateral margins narrowly explanate posterad lateral fovea, not explanate anterad lateral foveae; lateral foveae moderately impressed, contiguous with lateral margins. Elytra with humeral angles convex; epipleural carina not projecting; 1.9–2.1 times longer than pronotum; apical margins convex. Wings brachypterous. Mesosternum with projecting tooth; longitudinal carina along midline of mesosternum present but vague, especially near midline and posterior margin ( Fig. 19F View Fig ). Legs: All tibiae evenly pubescent to apex. Metatrochanter without tooth on apical margin. Abdomen: Tergites IVand Veach with wing-folding spicules very broad, nearly contiguous or contiguous in shape of single transverse band ( Fig. 17F View Fig ). Apical palisade fringe on tergite VII absent. Aedeagus: Length 0.65–0.75 mm. Median lobe with lateral margins subparallel from base to past midline, then abruptly narrowed, apex acute ( Fig. 21B View Fig ). Parameres broad, parallel and nearly straight. Internal sac with 2 dense patches of spicules lateroapically.

Type Specimen. Holotype female (UAMObs: Ento:235216) labeled as follows: Mt. Baker Lodge, Aug. 26, 1935, WASH., M.H. Hatch/Det. 1954, H. Houk/not Vellica longipennis Csy. , compared with type, M.H. Hatch 1958/TYPE ♀ Phlaeopterus houkae 1951 – M.H. Hatch/ Vellica longipennis Csy. , compared with Fall coll., M.H. Hatch 1952. The specimen is deposited in the USNM.

Distribution. Phlaeopterus houkae is known broadly from the Pacific Coast and Cascade Ranges, from Siskiyou County, California and Oregon north to the Alaska Range in Alaska ( Fig. 10B View Fig ). It is also known coastally from Baranof Island, Prince of Wales Island, Haida Gwaii, Vancouver Island, and the Olympic Mountains.

Bionomics. Adults have been collected at 90–2,400 m elevation during June–August in wet moss at the edge of cold water, usually small streams and pools.

Remarks. Phlaeopterus houkae can be distinguished from all other Phlaeopterus species by its small size, presence of ocelli, vague anteocellar foveae, slight nuchal constriction, shape and punctation of the pronotum, shape of the wing-folding spicules on tergites IV and V, lack of wing-folding spicules on tergite VI, and the unique structure of the internal sac of the aedeagus.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Staphylinidae

Genus

Phlaeopterus

Loc

Phlaeopterus houkae Hatch, 1957

Mullen, Logan J., Campbell, J. M. & Sikes, Derek S. 2018
2018
Loc

Phlaeopterus houkae

Bousquet 2013: 89
Herman 2001: 377
Hatch 1957: 58
1957
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