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An extremely close-up photo of a little beetle with a black rear, a shiny read upper abdomen, and a reddish thorax and head, with moderately long antennae. It is walking around on decayed wood.

An extremely close-up photo of a little beetle with a black rear, a shiny read upper abdomen, and a reddish thorax and head, with moderately long antennae. It is walking around on decayed wood.

I love finding these weird cool little ant-loving beetles (Pselaphinae).

#insect #beetle #pselaphinae #inaturalist #bcparks #okanagan #similkameen #britishcolumbia #canada #macrophotography #naturephotography

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Anaclasiger sinuaticollis. A–I) Male, J) Female. A) Dorsal habitus, B) Head and pronotum, C) Antenna, D) Mesotibia, E) Base of composite tergite, F) Sternite 7 (IX). Aedeagus: G) Dorsal, H) Lateral, I) Ventral. J) Genitalia. Scale bars: A = 0.5 mm; B, C, E = 0.2 mm; D, G–I = 0.1 mm; F, J = 0.05 mm.

Anaclasiger sinuaticollis. A–I) Male, J) Female. A) Dorsal habitus, B) Head and pronotum, C) Antenna, D) Mesotibia, E) Base of composite tergite, F) Sternite 7 (IX). Aedeagus: G) Dorsal, H) Lateral, I) Ventral. J) Genitalia. Scale bars: A = 0.5 mm; B, C, E = 0.2 mm; D, G–I = 0.1 mm; F, J = 0.05 mm.

#LiteratureNotice Zhang et al. Host Specificity and Range Extension of Anaclasiger sinuaticollis Raffray, 1890 ( #Coleoptera: #Staphylinidae: #Pselaphinae) doi.org/10.1649/0010... #Beetle #Beetles #RoveBeetles #NewRecords #TheColeopteristsBulletin

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Australosagola male habitus photos, all dorsal view except for B, ventral view. A, B. A. tasmaniae comb. nov.; C. A. rugicornis comb. nov.; D. A. helenae comb. nov.; E. A. minsangi sp. nov.; F. A. minhoi sp. nov.; G. A. jiwooki sp. nov.; H. A. sunheei sp. nov.; I. A. doohyungi sp. nov.; J. A. jungjooni sp. nov.; K. A. yongsooni sp. nov. Scale bars: 1.0 mm.

Australosagola male habitus photos, all dorsal view except for B, ventral view. A, B. A. tasmaniae comb. nov.; C. A. rugicornis comb. nov.; D. A. helenae comb. nov.; E. A. minsangi sp. nov.; F. A. minhoi sp. nov.; G. A. jiwooki sp. nov.; H. A. sunheei sp. nov.; I. A. doohyungi sp. nov.; J. A. jungjooni sp. nov.; K. A. yongsooni sp. nov. Scale bars: 1.0 mm.

#LiteratureNotice Choi et al. Australosagola, a #NewGenus of pselaphine beetles from southern Australia ( #Coleoptera, #Staphylinidae, #Pselaphinae, Faronitae) with descriptions of seven #NewSpecies doi.org/10.3897/zook... #Beetle #Beetles #RoveBeetles

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Our first session at #dzg2025 starts in Berlin with a talk by Margarita Yavorskaya on extreme head #morphology transformations in #Pselaphinae

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Habitus of Bibrax species (A, D. Dorsal view; B, E. Lateral view; C, F. Ventral view). A–C. B. chullachaqui sp. nov.; D–F. B. chocoensis sp. nov.

Habitus of Bibrax species (A, D. Dorsal view; B, E. Lateral view; C, F. Ventral view). A–C. B. chullachaqui sp. nov.; D–F. B. chocoensis sp. nov.

#LiteratureNotice Tapuy-Avilés et al. First record of Bibrax Fletcher, 1927 ( #Coleoptera, #Staphylinidae, #Pselaphinae) from Ecuador, with descriptions of twelve #NewSpecies doi.org/10.3897/zook... #Beetle #Beetles #RoveBeetles

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Habitus of Bibrax species (A, D. Dorsal view; B, E. Lateral view; C, F. Ventral view). A–C. B. chullachaqui sp. nov.; D–F. B. chocoensis sp. nov.

Habitus of Bibrax species (A, D. Dorsal view; B, E. Lateral view; C, F. Ventral view). A–C. B. chullachaqui sp. nov.; D–F. B. chocoensis sp. nov.

#LiteratureNotice Tapuy-Avilés et al. First record of Bibrax Fletcher, 1927 ( #Coleoptera, #Staphylinidae, #Pselaphinae) from Ecuador, with descriptions of twelve #NewSpecies doi.org/10.3897/zook... #Beetle #Beetles

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#Ecuador #biodiversity #Pselaphinae #leaflitter #Clemson #INABIO

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Morphology of Arthromelodes lhunzensis sp. nov., male A dorsal habitus B head and pronotum C antennal club D protibia E mesotibia F sternite 7 (IX) G, H aedeagus, lateral (G), and ventral (H). Scale bars: 0.5 mm (A); 0.3 mm (B); 0.2 mm in (C, D, E); 0.1 mm in (F, G); 0.05 mm (A).

Morphology of Arthromelodes lhunzensis sp. nov., male A dorsal habitus B head and pronotum C antennal club D protibia E mesotibia F sternite 7 (IX) G, H aedeagus, lateral (G), and ventral (H). Scale bars: 0.5 mm (A); 0.3 mm (B); 0.2 mm in (C, D, E); 0.1 mm in (F, G); 0.05 mm (A).

#LiteratureNotice Zhang & Yin. Three #NewSpecies of Batrisini ( #Coleoptera, #Staphylinidae, #Pselaphinae) from southeast Xizang, China doi.org/10.3897/zook... #Beetle #Beetles #RoveBeetles

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And another little Pselaphinae from my most recent foray into the Lincolnshire Wolds, Bibloporus minutus, a little chunk at 1.3mm, the rarest of the two British species, bicolor was present as well. Slightly lighter in colour than normal, probably teneral. #Staphylinidae #Pselaphinae #Coleoptera

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Euplectus infirmus, 1.3mm. Lincolnshire Wolds yesterday. #Staphylinidae #Pselaphinae #Euplectini up there as one of my favourite families.

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Yes I know I’ve put pictures up of this beetle before, it’s not rare, I’ve found it on multiple occasions in several English counties. It is however my type of beetle. Pselaphis heisei, Cumbrian wet meadow. #Pselaphinae #Coleoptera

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Tychus niger, improved pasture left ungrazed, Derbyshire. Pretty common but never easy to find in numbers. #Pselaphinae #Staphylinidae #Coleoptera

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Ant-loving Beetles (Subfamily Pselaphinae) Ant-loving Beetles from Lane County, OR, USA on June 10, 2025 at 09:56 AM by Mike Palmer. From ethanol trap hanging over Beaver Pond. 8468.2

A #pselaphinae caught in an ethanol trap hanging over a beaver pond. Do any #coleoptera folks have any suggestions for narrowing it down ? www.inaturalist.org/observations...

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FIGURE 2. Bryaxis phiaoaci sp. nov. A. Dorsal habitus. B. Head and pronotum. C. Antenna. D, E. Aedeagus, in dorsal view.

FIGURE 2. Bryaxis phiaoaci sp. nov. A. Dorsal habitus. B. Head and pronotum. C. Antenna. D, E. Aedeagus, in dorsal view.

#LiteratureNotice Mizerakis et al. A #NewSpecies of Bryaxis Kugelann, 1794 ( #Coleoptera: #Staphylinidae: #Pselaphinae) from Vietnam doi.org/10.11646/zoo... #Beetle #Beetles #RoveBeetles

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Pselaphinae take some beating. A few from my rather messy reference collection that I’ve been using this afternoon to compare with a few taken this year. #Coleoptera #Pselaphinae

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#LiteratureNotice Gouvea et al. A #NewSpecies from the eastern Amazon rainforest with lectotype designations and key for Brazilian Oxarthrius Reitter, 1883 (#Coleoptera: #Staphylinidae: #Pselaphinae). doi.org/10.11646/zoo... #Beetle #Beetles #RoveBeetles

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#LiteratureNotice Inoue & Nomura. #NewSpecies and #NewRecords of Tyrodes Raffray (#Coleoptera: #Staphylinidae: #Pselaphinae) from Japan. doi.org/10.11646/zoo... #Beetle #Beetles #RoveBeetles

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#LiteratureNotice Patalita et al. First record of the genus Pseudophanias Raffray, 1890 (#Staphylinidae: #Pselaphinae) in the Philippines with list of species in the world. doi.org/10.53716/jtc... #Beetle #Beetles #RoveBeetles #NewRecords #CheckList

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Adult female habitus. (A–D) Dorsal view, (E–H) Ventral view. A, E) Parapyxidicerus carinatus, B, F) P. koreanus, new species, C, G) Zethopsus omibongensis, new species, D, H) Euplectomorphus pygmaesimilis, new species.

Adult female habitus. (A–D) Dorsal view, (E–H) Ventral view. A, E) Parapyxidicerus carinatus, B, F) P. koreanus, new species, C, G) Zethopsus omibongensis, new species, D, H) Euplectomorphus pygmaesimilis, new species.

#LiteratureNotice Byeon & Park. Review of the Korean Species of the Tribe Bythinoplectini Schaufuss, 1890 (#Coleoptera: #Staphylinidae: #Pselaphinae: Euplectitae) doi.org/10.1649/0010...
#Beetle #Beetles #RoveBeetles #NewSpecies #Korea #TheColeopteristsBulletin

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Eupsenius species, dorsal habitus photos and E. politus distribution map. 6) E. dilatatus; 7) E. glaber; 8) E. peckorum, new species; 9) E. rileyi, new species; 10) E. politus. Eupsenina raffrayi: 11) Dorsal habitus; 12) Anterior view. 13) Eupsenina undescribed species, dorsal habitus. 14) Distribution of Eupsenius politus.

Eupsenius species, dorsal habitus photos and E. politus distribution map. 6) E. dilatatus; 7) E. glaber; 8) E. peckorum, new species; 9) E. rileyi, new species; 10) E. politus. Eupsenina raffrayi: 11) Dorsal habitus; 12) Anterior view. 13) Eupsenina undescribed species, dorsal habitus. 14) Distribution of Eupsenius politus.

#LiteratureNotice Chandler. The Eupsenius LeConte of North America and the Lesser Antilles with Notes on the Brachyglutini Subtribes Eupseniina Park and Baradina Park (#Coleoptera: #Staphylinidae: #Pselaphinae) doi.org/10.1649/0010...
#Beetle #Beetles #RoveBeetles #Taxonomy #TheColeopteristsBulletin

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