Skip to main content Skip to main navigation menu Skip to site footer
Responsive image
Issue: Vol. 5428 No. 4: 25 Mar. 2024
Type: Article
Published: 2024-03-25
DOI: 10.11646/zootaxa.5428.4.5
Page range: 549-570
Abstract views: 90
PDF downloaded: 4

Palposcydmus gen. n. from India, with a preliminary key to world genera of Stenichnini (Coleoptera, Staphylinidae, Scydmaeninae)

Museum of Natural History; University of Wrocław; Sienkiewicza 21; 50-335 Wrocław; Poland
Coleoptera ant-like stone beetles taxonomy new genus Oriental

Abstract

Palposcydmus yelamalai, gen. et spec. n. is described, based on specimens collected in Kerala, India. The new species is one of the smallest known scydmaenines, with the body length reaching merely 0.53–0.59 mm. Although in dorsal aspect resembling Microscydmus Saulcy & Croissandeau, Palposcydmus clearly differs in the presence of hypostomal sutures demarcating a subrectangular submental region, and enormously enlarged maxillary palpomeres 3. The new genus shows also a unique antennal structure not known in any other Stenichnini: the antennomere 3 is inserted deeply into the apex of pedicel, so that there is no constriction between them. Keys to extant genera of Stenichnini are given, in order to facilitate identifications separately to Indian, Eurasian & New Guinean, and to world genera.

 

References

  1. Brendel, E. (1889) Descriptions of new Scydmaenidae and Pselaphidae. Entomologica Americana, 5 (10–11), 193–197.
  2. Broun, T. (1893) n.k. In: Manual of the New Zealand Coleoptera. Parts V., VI., VII. New Zealand Institute, Wellington, pp. i–xvii + 975–1504.
  3. Casey, T.L. (1897) Coleopterological notices. VII. Annals of the New York Academy of Sciences, 9 (1), 285–684. https://doi.org/10.1111/j.1749-6632.1896.tb55435.x
  4. Costa Lima, A. da (1962) Micro-Coleóptero representante da nova subfamília Plaumanniolinae (Col., Ptinidae). Revista Brasileira de Biologia, 22 (4), 413–418.
  5. Croissandeau, J. (1898) Monographie des Scydmaenidae. Annales de la Société Entomologique de France, 67, 105–167, pls. 4–15 + 18–19.
  6. Franz, H. (1957) Neue Scydmaenidae (Coleoptera) aus Belgisch-Congo. I. Acta Zoologica Cracoviensia, 2, 17–60.
  7. Franz, H. (1963) Scydmaeniden (Coleoptera) aus Ostafrika, dem Kongo und der Tschadrepublik (vorwiegend aus den im Sommer 1962 vom Verfasser selbst gesammelten Ausbeuten). Stuttgarter Beitrage zur Naturkunde, 120, 1–93.
  8. Franz, H. (1966) Scydmaeniden aus Nigeria, Senegal, der Tschadrepublik und Ostafrika (Coleoptera, Scydmaenidae). The Annals and Magazine of Natural History, Series 13, 8 (95), 613–628. [1965] https://doi.org/10.1080/00222936508651621
  9. Franz, H. (1967) Zur Kenntnis der Scydmaenidenfauna von Lateinamerika. I Teil: Scydmaeniden aus Chile und dem südlichen Argentinien. II Teil: Scydmaeniden aus dem subtropischen und tropischen Amerika. In: Delamare Deboutteville, C. & Rappaport, E. (Eds.), Biologie de l’Amerique Australe. Vol. III. Etudes sur la faune du sol, documents biogeographiques. Centre National de la Recherche Scientifique, Paris, pp. 611–724.
  10. Franz, H. (1971) Untersuchungen über die Scydmaenidenfauna Neukaledoniens (Col. Scydm.). Anhang: Neue Scydmaeniden von den Fiji- und Samoa-Inseln sowie aus Ostpolynesien. Koleopterologische Rundschau, 49, 43–157.
  11. Franz, H. (1975) Revision der Scydmaeniden von Australien, Neuseeland und den benachbarten Inseln. Denkschriften der Österreichische Akademie der Wissenschaften, Mathematisch-Naturwissenschaftliche Klasse, 118, 1–312. https://doi.org/10.1007/978-3-7091-5642-1
  12. Franz, H. (1979) Weitere Beiträge zur Kenntnis der Scydmaenidenfauna des Himalaja und seiner Grenzgebiete (Coleoptera: Scydmaenidae). Entomologica Basiliensia, 4, 235–274.
  13. Franz, H. (1980) Monographie der südamerikanischen Scydmaeniden mit Einschluss einiger mittelamerikanischer Arten (Coleoptera). Folia Entomologica Hungarica, 41 (2), 39–264.
  14. Franz, H. (1985a) Scydmaeniden aus dem Kamerun-Gebirge, gesammelt von Bruneau de Mire mit Beschreibung sämtlicher Arten und Bestimmungstabelle der Euconnus-Arten. Annales de la Société entomologique de France, New Series, 21 (3), 331–340. https://doi.org/10.1080/21686351.1985.12278768
  15. Franz, H. (1985b) Weiterer Beitrag zur Kenntnis der Scydmaenidenfauna von Surinam (Coleoptera: Scydmaenidae). Zoologische Mededelingen, 59 (12), 109–132.
  16. Franz, H. (1986a) Ein neues Genus und ein neues Subgenus der Scydmaenidae (Coleoptera) aus Südost-Asien. Revue suisse de Zoologie, 93 (4), 965–970. https://doi.org/10.5962/bhl.part.79522
  17. Franz, H. (1986b) Monographie der Scydmaeniden (Coleoptera) von Madagaskar (mit Ausschluss der Cephenniini). Denkschriften der Österreichische Akademie der Wissenschaften, Mathematisch-Naturwissenschaftliche Klasse, 125, 1–393.
  18. Franz, H. (1988) Nachtrag zur monographie der Scydmaeniden Venezuelas (Coleoptera, Scydmaenidae). Elytron, 1 [1987], 59–84.
  19. Franz, H. (1989a) 4. Beitrag zur Scydmaenidenfauna von Thailand (Die Scydmaenidenausbeute von D. H. Burckhardt u. I. Löbl). Revue suisse de Zoologie, 96 (1), 33–80. https://doi.org/10.5962/bhl.part.82027
  20. Franz, H. (1989b) Neue Scydmaeniden (Coleoptera) aus dem tropischen Südamerika. Revue suisse de Zoologie, 96 (3), 629–636. https://doi.org/10.5962/bhl.part.82052
  21. Jacquelin du Val, C. (1850) Description d’un genre nouveau et de quelques espèces nouvelles de Coléoptères. Annales de la Société Entomologique de France, Series 2, 8, 45–52, pl. 1.
  22. Jałoszyński, P. (2004) Revision of scydmaenid beetles of the genus Syndicus Motschulsky (Coleoptera, Scydmaenidae). National Science Museum, Tokyo, 108 pp.
  23. Jałoszyński, P. (2012a) Taxonomy of “Euconnus complex”. Part I. Morphology of Euconnus s. str. and revision of Euconnomorphus Franz and Venezolanoconnus Franz (Coleoptera: Staphylinidae: Scydmaeninae). Zootaxa, 3555 (1), 55–82. https://doi.org/10.11646/zootaxa.3555.1.3
  24. Jałoszyński, P. (2012b) Systematic position of Australian genus Palaeoscydmaenus Franz (Coleoptera: Staphylinidae: Scydmaeninae). Zootaxa, 3501 (1), 63–73. https://doi.org/10.11646/zootaxa.3501.1.3
  25. Jałoszyński, P. (2013a) Phylogeny of a new supertribe Cephenniitae with generic review of Eutheiini and description of a new tribe Marcepaniini (Coleoptera: Staphylinidae: Scydmaeninae). Systematic Entomology, 39, 159–189. https://doi.org/10.1111/syen.12044
  26. Jałoszyński, P. (2013b) Revision of the Neotropical genus Alloraphes Franz (Coleoptera: Staphylinidae: Scydmaeninae). Zootaxa, 3750 (5), 549–568. https://doi.org/10.11646/zootaxa.3750.5.7
  27. Jałoszyński, P. (2013c) Revision of subgenera of Stenichnus Thomson, with review of Australo-Pacific species (Coleoptera, Staphylinidae, Scydmaeninae). Zootaxa, 3630 (1), 39–79. https://doi.org/10.11646/zootaxa.3630.1.2
  28. Jałoszyński, P. (2013d) Revision of Neotropical genera Microraphes Franz, Heteroscydmus Franz and Mimoscydmus Franz (Coleoptera, Staphylinidae, Scydmaeninae). Zootaxa, 3722 (2), 245–266. https://doi.org/10.11646/zootaxa.3722.2.7
  29. Jałoszyński, P. (2013e) Taxonomy of “Euconnus complex”. Part II. Revision of Archiconnus Franz, Parapseudoconnus Franz and Mexiconnus gen. nov. (Coleoptera, Staphylinidae, Scydmaeninae). Zootaxa, 3666 (4), 523–543. https://doi.org/10.11646/zootaxa.3666.4.7
  30. Jałoszyński, P. (2014a) Obesoconnus gen. n., a new bizarre Neotropical genus of Cyrtoscydmini (Coleoptera: Staphylinidae: Scydmaeninae). Zootaxa, 3794 (3), 481–491. https://doi.org/10.11646/zootaxa.3794.3.9
  31. Jałoszyński, P. (2014b) Scydmepitoxis gen. n., a new genus of Cyrtoscydmini (Coleoptera: Staphylinidae: Scydmaeninae) from Australia. Zootaxa, 3866 (2), 289–296. https://doi.org/10.11646/zootaxa.3866.2.7
  32. Jałoszyński, P. (2014c) “The curse of Horaeomorphus”: Taxonomy of misplaced Australian Cyrtoscydmini (Coleoptera: Staphylinidae: Scydmaeninae). Zootaxa, 3828 (1), 1–76. https://doi.org/10.11646/zootaxa.3828.1.1
  33. Jałoszyński, P. (2014d) The smallest Cyrtoscydmini of Australia: Revision of Microscydmus Saulcy & Croissandeau and Penicillidmus gen. n. (Coleoptera, Staphylinidae, Scydmaeninae). Zootaxa, 3774 (1), 1–30. https://doi.org/10.11646/zootaxa.3774.1.1
  34. Jałoszyński, P. (2015a) A new genus of Cyrtoscydmini (Coleoptera: Staphylinidae: Scydmaeninae) from Japan. Entomological Science, 18 (3), 330–339.
  35. Jałoszyński, P. (2015b) Revision of Neotropical species of ant-like stone beetles misplaced in Stenichnus and Scydmoraphes (Coleoptera, Staphylinidae, Scydmaeninae). Zootaxa, 4027 (2), 253–269. https://doi.org/10.11646/zootaxa.4027.2.5
  36. Jałoszyński, P. (2015c) Schuelkelia gen. n., a new eastern Palaearctic ant-like stone beetle, with synopsis of Eurasian genera of Cyrtoscydmini (Coleoptera: Staphylinidae: Scydmaeninae). Zootaxa, 4007 (3), 343–369. https://doi.org/10.11646/zootaxa.4007.3.3
  37. Jałoszyński, P. (2017) Bellendenker gen. nov., a new Australian genus of Glandulariini (Coleoptera: Staphylinidae: Scydmaeninae). Zootaxa, 4247 (2), 165–173. https://doi.org/10.11646/zootaxa.4247.2.8
  38. Jałoszyński, P. (2018a) First records of Archiconnus and Obesoconnus in Costa Rica (Coleoptera, Staphylinidae, Scydmaeninae). Zootaxa, 4382 (2), 292–298. https://doi.org/10.11646/zootaxa.4382.2.4
  39. Jałoszyński, P. (2018b) Madagaphes gen. nov. for Madagascan species misplaced in Stenichnaphes Franz (Coleoptera, Staphylinidae, Scydmaeninae). Austral Entomology, 58 (2019), 111–121. https://doi.org/10.1111/aen.12331
  40. Jałoszyński, P. (2019a) Unexpected diversity of Microscydmus Saulcy & Croissandeau in Japan (Coleoptera: Staphylinidae: Scydmaeninae). Zootaxa, 4679 (3), 539–552. https://doi.org/10.11646/zootaxa.4679.3.7
  41. Jałoszyński, P. (2019b) Taxonomy of the “Afroeudesis group” of glandulariine ant-like stone beetles (Coleoptera: Staphylinidae: Scydmaeninae). Zootaxa, 4612 (2), 205–220. https://doi.org/10.11646/zootaxa.4612.2.4
  42. Jałoszyński, P. (2019c) Neotropical Glandulariini with male cephalic modifcations: Protandroconnus Franz and Trichocircus gen. nov. (Coleoptera: Staphylinidae: Scydmaeninae). Annales Zoologici, 69 (3), 515–534. https://doi.org/10.3161/00034541ANZ2019.69.3.003
  43. Jałoszyński, P. (2020a) Corrections to the classification of the Neotropical ant-like stone beetles misplaced in Euconnus Thomson (Coleoptera, Staphylinidae, Scydmaeninae). Part 1. Zootaxa, 4755 (2), 251–270. https://doi.org/10.11646/zootaxa.4755.2.3
  44. Jałoszyński, P. (2020b) Aenigmaphes gen. n., a new glandulariine genus of the Australian region (Coleoptera: Staphylinidae: Scydmaeninae). Zootaxa, 4731 (3), 439–446. https://doi.org/10.11646/zootaxa.4731.3.12
  45. Jałoszyński, P. (2020c) Five new species of the Neotropical genus Venezolanoconnus Franz (Coleoptera, Staphylinidae, Scydmaeninae). Zootaxa, 4858 (2), 274–284. https://doi.org/10.11646/zootaxa.4858.2.8
  46. Jałoszyński, P. (2020d) Himaloconnus Franz and Nogunius gen. n. of Japan (Coleoptera: Staphylinidae: Scydmaeninae). Zootaxa, 4822 (3), 334–360. https://doi.org/10.11646/zootaxa.4822.3.2
  47. Jałoszyński, P. (2020e) Siamitoides gen. n., a new Oriental ant-like stone beetle genus (Coleoptera: Staphylinidae: Scydmaeninae). Zootaxa, 4868 (2), 257–266. https://doi.org/10.11646/zootaxa.4868.2.5
  48. Jałoszyński, P. (2020f) Three new species and new records of Stenichnodes Franz (Coleoptera: Staphylinidae: Scydmaeninae). Zootaxa, 4779 (2), 289–296. https://doi.org/10.11646/zootaxa.4779.2.10
  49. Jałoszyński, P. (2021a) Redescription of Brachycepsis Brendel, notes on Taphroscydmus Casey, and brief review of Nearctic genera of Stenichnini (Coleoptera: Staphylinidae: Scydmaeninae). Zootaxa, 4915 (1), 77–94. https://doi.org/10.11646/zootaxa.4915.1.5
  50. Jałoszyński, P. (2021b) Sinonichnus gen. n. for Scydmoraphes yunnanensis Jałoszyński, and description of Sinonichnus leiodicornutus sp. n. (Coleoptera, Staphylinidae, Scydmaeninae). Zootaxa, 4938 (4), 487–496. https://doi.org/10.11646/zootaxa.4938.4.7
  51. Jałoszyński, P. (2023a) Two new species of Syndicus in southern India (Coleoptera, Staphylinidae, Scydmaeninae). Zootaxa, 5230 (4), 489–495. https://doi.org/10.11646/zootaxa.5230.4.6
  52. Jałoszyński, P. (2023b) Notes on the Western Palaearctic genus Leptocharis Reitter (Coleoptera: Staphylinidae: Scydmaeninae). Zootaxa, 5353 (5), 430–440. https://doi.org/10.11646/zootaxa.5353.5.2
  53. Jałoszyński, P. (2023c) Discovery of Obesoconnus Jałoszyński in the Oriental Region (Coleoptera, Staphylinidae, Scydmaeninae). Zootaxa, 5293 (2), 371–378. https://doi.org/10.11646/zootaxa.5293.2.10
  54. Jałoszyński, P. & Newton, A.F. (2017) Taxonomy of “Euconnus complex”. Part XV. Disentangling the Euconnus-Sciacharis knot (Coleoptera, Staphylinidae, Scydmaeninae). Zootaxa, 4344 (3), 401–443. https://doi.org/10.11646/zootaxa.4344.3.1
  55. King, R.L. (1864) On the Scydmaenides of New South Wales. Transactions of the Entomological Society of New South Wales, 1, 91–99, pls. 6–7.
  56. Motschulsky, V. (1851) Énumération des nouvelles espèces de Coléoptères. Bulletin de la Société Impériale des Naturalistes de Moscou, 24 (4), 479–511.
  57. Reitter, E. (1882) I. Scydmaenidi d’Abissinia. Naturalista Siciliano, 1 (11 & 12), 241–247 & 269–274.
  58. Reitter, E. (1883) Neue Pselaphiden und Scydmaeniden aus Central und Südamerika. Verhandlungen der Zoologisch-Botanischen Gesellschaft in Wien, 32, 371–386. [1882]
  59. Reitter, E. (1887) Neue Coleopteren aus Europa, den angrenzenden Ländern und Sibirien, mit Bemerkungen über bekannte Arten. Dritter Theil. Deutsche Entomologische Zeitschrift, 31 (1), 241–288.
  60. Reitter, E. (1891) [new names]. In: von Heyden, L., Reitter, E. & Weise, J. (Eds.), Catalogus Coleopterorum Europae, Caucasi et Armeniae rossicae. Friedländer & Sohn, Berlin, pp. vii + 420.
  61. Saulcy, F. de & Croissandeau, J. (1893) Tableau des genres des Scydmaenidae. Annales de la Société Entomologique de France, 62, 225–238, pls. 2–3.
  62. Schaufuss, L.W. (1884) Die Scydmaeniden nord-ost-Afrika’s, der Sunda-Inseln und Neu-Guinea’s im Museo Civico di Storia Naturale zu Genua. Annali del Museo Civico di Storia Naturale di Genova, 2a (1), 387–424.
  63. Schaufuss, L.W. (1889) Neue Scydmaeniden im Museum Ludwig Salvator. Berliner entomologische Zeitschrift, 33 (1), 1–42. https://doi.org/10.1002/mmnd.18890330103
  64. Scott, H. (1922) No. IV.—Coleoptera: Scydmaenidae, Scaphidiidae, Phalacridae, Cucujidae (Supplement), Lathridiidae, Mycetophagidae (including Propalticus), Bostrychidae, Lyctidae. Transactions of the Linnean Society of London, Series 2: Zoology, 18 (1), 195–260. https://doi.org/10.1111/j.1096-3642.1922.tb00550.x
  65. Sharp, D. (1887) n.k. In: Fam. Scydmaenidae. In: Biologia Centrali Americana. Insecta. Coleoptera. Vol. II. Part I. Taylor & Francis, London, pp. 46–71, pl. II.
  66. Thomson, C.G. (1859) Skandinaviens Coleoptera, synoptiskt bearbetade. Vol. 1. Berlingska Boktryckeriet, Lund, 290 pp. https://doi.org/10.5962/bhl.title.138677