Agraphydrus

Agraphydrus
Dorsal view of Agraphydrus sp.
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Arthropoda
Clade: Pancrustacea
Class: Insecta
Order: Coleoptera
Suborder: Polyphaga
Infraorder: Staphyliniformia
Family: Hydrophilidae
Subfamily: Acidocerinae
Genus: Agraphydrus
Régimbart, 1903
Diversity
205 species
Synonyms
  • Gymnhelochares d’Orchymont, 1932
  • Pseudohelochares Satô, 1960
  • Horelophopsis Hansen, 1997
  • Pseudopelthydrus Jia, 1998
  • Megagraphydrus Hansen, 1999

Agraphydrus is a genus of water scavenger beetle in the family Hydrophilidae represented by 205 recognized species. It is distributed across the Afrotropical, Australasian, and Indomalayan realms.

Taxonomy

The genus Agraphydrus was described for the first time by Maurice Auguste Régimbart in 1903.

It currently contains 205 described species, partly thanks to a series revisionary work developed by Albretch Komarek.

Description

Small beetles (1.4–4.8 mm), pale/yellowish to dark brown in coloration, eyes not emarginate, labrum exposed, maxillary palps moderately long. Elytra without sutural striae, not laterally explanate; the elytral punctation ranges from very fine and subtle to coarse.

A complete diagnosis was presented by Girón and Short, but also see Komarek and collaborators.

Habitat

According to Girón and Short, based on annotations by Komarek and collaborators:

Agraphydrus can be found in an extremely broad range of habitats, from rivers, streams and forest pools, to hygropetric environments around waterfalls or seepages over rocks; a few species have been collected in terrestrial habitats by sifting moss and leaves from near water bodies, or in the gravel along the bank of a river; in many cases specimens have been found associated with floating vegetation, mosses and algae.

Species

  1. Agraphydrus abrasus Komarek and Freitag, 2020
  2. Agraphydrus activus Komarek and Hebauer, 2018
  3. Agraphydrus acutus Komarek, 2020
  4. Agraphydrus aethiopicus Komarek, 2020
  5. Agraphydrus agilis Komarek and Hebauer, 2018
  6. Agraphydrus albescens (Régimbart, 1903)
  7. Agraphydrus ampullatus Komarek and Freitag, 2020
  8. Agraphydrus anacaenoides Komarek, 2019
  9. Agraphydrus anatinus Komarek, 2018
  10. Agraphydrus andamanicus Komarek, 2018
  11. Agraphydrus andringitra Komarek, 2020
  12. Agraphydrus angulatus Komarek, 2019
  13. Agraphydrus angustatus Komarek, 2020
  14. Agraphydrus angustipenis Komarek, 2018
  15. Agraphydrus anhuianus (Hebauer, 2000)
  16. Agraphydrus annapurnensis Komarek, 2018
  17. Agraphydrus arduus Komarek and Hebauer, 2018
  18. Agraphydrus ater Komarek, 2018
  19. Agraphydrus atripalpis Komarek, 2020
  20. Agraphydrus attenuatus (Hansen, 1999)
  21. Agraphydrus audax Komarek and Hebauer, 2018
  22. Agraphydrus avita (Hansen, 1997)
  23. Agraphydrus bacchusi Komarek, 2019
  24. Agraphydrus balkeorum Komarek, 2019
  25. Agraphydrus batak Komarek and Freitag, 2020
  26. Agraphydrus bhutanensis Komarek, 2018
  27. Agraphydrus bicoloratus Komarek, 2020
  28. Agraphydrus bilardoi Komarek, 2020
  29. Agraphydrus biltoni Komarek, 2020
  30. Agraphydrus biprojectus Minoshima, Komarek, and Ôhara, 2015
  31. Agraphydrus borneensis Komarek, 2019
  32. Agraphydrus boukali Komarek, 2018
  33. Agraphydrus brevilobatus Komarek and Freitag, 2020
  34. Agraphydrus brevipenis Komarek, 2019
  35. Agraphydrus burmensis Komarek, 2019
  36. Agraphydrus calvus Komarek and Hebauer, 2018
  37. Agraphydrus camerunensis Komarek, 2020
  38. Agraphydrus cantonensis Komarek and Hebauer, 2018
  39. Agraphydrus carinatulus Komarek, 2019
  40. Agraphydrus cervus Komarek, 2019
  41. Agraphydrus ceylonensis Komarek, 2018
  42. Agraphydrus chinensis Komarek and Hebauer, 2018
  43. Agraphydrus cinnamum Komarek, 2018
  44. Agraphydrus clarus Komarek, 2019
  45. Agraphydrus comes Komarek and Hebauer, 2018
  46. Agraphydrus communis Komarek, 2018
  47. Agraphydrus confusus Komarek and Hebauer, 2018
  48. Agraphydrus congolensis Komarek, 2020
  49. Agraphydrus conicus Komarek and Hebauer, 2018
  50. Agraphydrus connexus Komarek and Hebauer, 2018
  51. Agraphydrus constrictus Komarek, 2018
  52. Agraphydrus contractus Komarek and Hebauer, 2018
  53. Agraphydrus coomani (d'Orchymont, 1927)
  54. Agraphydrus coronarius Minoshima, Komarek, and Ôhara, 2015
  55. Agraphydrus crassipenis Komarek, 2018
  56. Agraphydrus dapengensis Yang & Jia, 2021
  57. Agraphydrus decipiens Minoshima, Komarek, and Ôhara, 2015
  58. Agraphydrus delineatus Komarek, 2019
  59. Agraphydrus elongatus Ribera, Hernando, and Cieslak, 2019
  60. Agraphydrus engkari Komarek, 2019
  61. Agraphydrus excisus Komarek, 2019
  62. Agraphydrus exedis (d'Orchymont, 1937)
  63. Agraphydrus exiguus Komarek, 2019
  64. Agraphydrus falcatus Komarek, 2018
  65. Agraphydrus fasciatus Komarek and Hebauer, 2018
  66. Agraphydrus fikaceki Komarek and Hebauer, 2018
  67. Agraphydrus flavescens Komarek, 2020
  68. Agraphydrus flavipes Komarek, 2020
  69. Agraphydrus flavonotus Komarek, 2018
  70. Agraphydrus floresinus Komarek, 2019
  71. Agraphydrus fontis Komarek, 2020
  72. Agraphydrus forcipatus Komarek and Hebauer, 2018
  73. Agraphydrus fortis Komarek, 2018
  74. Agraphydrus fujianensis Komarek and Hebauer, 2018
  75. Agraphydrus geminus (d'Orchymont, 1932)
  76. Agraphydrus gereckei Komarek, 2020
  77. Agraphydrus gilvus Komarek, 2018
  78. Agraphydrus glaber Komarek, 2018
  79. Agraphydrus globipenis Komarek and Hebauer, 2018
  80. Agraphydrus goldschmidti Komarek, 2020
  81. Agraphydrus gracilipalpis Komarek, 2018
  82. Agraphydrus hamatus Komarek, 2019
  83. Agraphydrus hanseni (Satô and Yoshitomi, 2004)
  84. Agraphydrus heinrichi Komarek, 2018
  85. Agraphydrus helicopter Komarek, 2019
  86. Agraphydrus hendrichi Komarek, 2019
  87. Agraphydrus heterochromatus Komarek, 2019
  88. Agraphydrus hortensis Komarek, 2019
  89. Agraphydrus hygropetricus Komarek, 2018
  90. Agraphydrus igneus Komarek and Hebauer, 2018
  91. Agraphydrus imitans Komarek, 2019
  92. Agraphydrus indicus (d'Orchymont, 1932)
  93. Agraphydrus inflatus Komarek, 2018
  94. Agraphydrus infuscatus Komarek, 2019
  95. Agraphydrus insidiator Minoshima, Komarek, and Ôhara, 2015
  96. Agraphydrus ishiharai (Matsui, 1994)
  97. Agraphydrus jaechi (Hansen, 1999)
  98. Agraphydrus jankodadai Komarek, 2019
  99. Agraphydrus jilanzhui Komarek and Hebauer, 2018
  100. Agraphydrus kallar Komarek, 2018
  101. Agraphydrus kathapa Komarek, 2019
  102. Agraphydrus kempi (d'Orchymont, 1922)
  103. Agraphydrus khasiensis Komarek, 2018
  104. Agraphydrus kodaguensis Komarek, 2018
  105. Agraphydrus komareki Yang & Jia, 2021
  106. Agraphydrus laocaiensis Komarek, 2019
  107. Agraphydrus latus Komarek, 2019
  108. Agraphydrus longipalpus (Jia, 1998)
  109. Agraphydrus longipenis Komarek and Hebauer, 2018
  110. Agraphydrus lunaris Komarek, 2019
  111. Agraphydrus luteilateralis (Minoshima and Fujiwara, 2009)
  112. Agraphydrus madagascarensis Komarek, 2020
  113. Agraphydrus maehongsonensis Komarek, 2019
  114. Agraphydrus malayanus (Hebauer, 2000)
  115. Agraphydrus malkini Komarek, 2020
  116. Agraphydrus manfredjaechi Komarek, 2019
  117. Agraphydrus masatakai Minoshima, Komarek, and Ôhara, 2015
  118. Agraphydrus matoposensis Komarek, 2020
  119. Agraphydrus mazzoldii Komarek, 2019
  120. Agraphydrus meghalayanus Komarek, 2018
  121. Agraphydrus microphthalmus Komarek, 2019
  122. Agraphydrus minutissimus (Kuwert, 1890)
  123. Agraphydrus mirabilis Komarek, 2019
  124. Agraphydrus montanus Minoshima, Komarek, and Ôhara, 2015
  125. Agraphydrus muluensis Komarek, 2019
  126. Agraphydrus musculus Komarek, 2019
  127. Agraphydrus namthaensis Komarek, 2019
  128. Agraphydrus nanus Komarek, 2018
  129. Agraphydrus narusei (Satô, 1960)
  130. Agraphydrus nemorosus Komarek, 2019
  131. Agraphydrus nepalensis Komarek, 2018
  132. Agraphydrus niger Komarek, 2018
  133. Agraphydrus nigroflavus Komarek, 2019
  134. Agraphydrus obesus Komarek, 2019
  135. Agraphydrus obscuratus Komarek, 2018
  136. Agraphydrus obsoletus Komarek, 2018
  137. Agraphydrus occultus Komarek and Freitag, 2020
  138. Agraphydrus ogatai Minoshima, 2016
  139. Agraphydrus orbicularis Komarek, 2019
  140. Agraphydrus orientalis (d'Orchymont, 1932)
  141. Agraphydrus palawanensis Komarek and Freitag, 2020
  142. Agraphydrus pallidus Komarek, 2019
  143. Agraphydrus papuanus Komarek, 2019
  144. Agraphydrus pauculus (Knisch, 1924)
  145. Agraphydrus pauper Komarek, 2020
  146. Agraphydrus pelingeni Komarek and Freitag, 2020
  147. Agraphydrus penangensis Komarek, 2019
  148. Agraphydrus piceus Komarek, 2019
  149. Agraphydrus politus (Hansen, 1999)
  150. Agraphydrus praecipuus (d'Orchymont, 1937)
  151. Agraphydrus protentus Komarek, 2018
  152. Agraphydrus pseudoniger Yang & Jia, 2021
  153. Agraphydrus pullus Komarek, 2018
  154. Agraphydrus punctatellus Régimbart, 1903
  155. Agraphydrus punctulatus Komarek, 2018
  156. Agraphydrus puzhelongi (Jia, 2010)
  157. Agraphydrus pygmaeus (Knisch, 1924)
  158. Agraphydrus raucus Komarek, 2019
  159. Agraphydrus reductus Komarek and Hebauer, 2018
  160. Agraphydrus regularis (Hansen, 1999)
  161. Agraphydrus reticulatus Komarek, 2019
  162. Agraphydrus reticuliceps Komarek and Hebauer, 2018
  163. Agraphydrus rhodesiensis Komarek, 2020
  164. Agraphydrus rhomboideus Komarek, 2019
  165. Agraphydrus rivalis Komarek, 2020
  166. Agraphydrus robustus Komarek and Hebauer, 2018
  167. Agraphydrus rostratus Komarek, 2018
  168. Agraphydrus rugosus Komarek, 2018
  169. Agraphydrus sabulosus Yang & Jia, 2021
  170. Agraphydrus sarawakensis Komarek, 2019
  171. Agraphydrus schoedli Komarek, 2019
  172. Agraphydrus schoenmanni Komarek and Hebauer, 2018
  173. Agraphydrus scintillans Komarek, 2019
  174. Agraphydrus scutifer Komarek, 2020
  175. Agraphydrus setifer Komarek and Hebauer, 2018
  176. Agraphydrus shaverdoae Komarek, 2019
  177. Agraphydrus siamensis (Hansen, 1999)
  178. Agraphydrus sipekorum Komarek, 2018
  179. Agraphydrus skalei Komarek, 2019
  180. Agraphydrus spadix Komarek, 2019
  181. Agraphydrus spinosus Komarek, 2019
  182. Agraphydrus splendens Komarek and Hebauer, 2018
  183. Agraphydrus stagnalis (d'Orchymont, 1937)
  184. Agraphydrus stramineus Komarek, 2019
  185. Agraphydrus sucineus Komarek, 2019
  186. Agraphydrus sundaicus Komarek, 2019
  187. Agraphydrus tamdao Komarek, 2019
  188. Agraphydrus taprobanensis Komarek, 2018
  189. Agraphydrus tenuipalpis Komarek and Freitag, 2020
  190. Agraphydrus thaiensis Minoshima, Komarek, and Ôhara, 2015
  191. Agraphydrus tristis Komarek, 2019
  192. Agraphydrus tulipa Komarek, 2019
  193. Agraphydrus tumidus Komarek, 2020
  194. Agraphydrus tumulosus Komarek, 2018
  195. Agraphydrus umbrosus Komarek and Hebauer, 2018
  196. Agraphydrus uncinatus Komarek and Hebauer, 2018
  197. Agraphydrus usambaraensis Komarek, 2020
  198. Agraphydrus uvaensis (Hebauer, 2000)
  199. Agraphydrus vadoni Komarek, 2020
  200. Agraphydrus variabilis Komarek and Hebauer, 2018
  201. Agraphydrus vietnamensis Komarek, 2019
  202. Agraphydrus villiersi (Balfour-Browne, 1958)
  203. Agraphydrus wangmiaoi Komarek and Hebauer, 2018
  204. Agraphydrus yunnanensis Komarek and Hebauer, 2018
  205. Agraphydrus zetteli Komarek and Freitag, 2020

References

  1. ↑ "Agraphydrus Régimbart, 1903". Catalogue of Life. Species 2000: Leiden, the Netherlands. Retrieved 7 December 2025.
  2. 1 2 3 4 Girón, Jennifer C.; Short, Andrew Edward Z. (2021-06-18). "The Acidocerinae (Coleoptera, Hydrophilidae): taxonomy, classification, and catalog of species". ZooKeys (1045): 1–236. Bibcode:2021ZooK.1045....1G. doi:10.3897/zookeys.1045.63810. ISSN 1313-2970. PMC 8233300. PMID 34228772.
  3. 1 2 Régimbart, MA (1903). "Coléoptères aquatiques (Haliplidae, Dytiscidae, Gyrinidae et Hydrophilidae) recueillis dans le Sud de Madagascar par M. Ch. Alluaud (Juillet 1900 – Mai 1901)". Annales de la Société Entomologique de France. 72: 1–51.
  4. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 Komarek, A. (2018). "Taxonomic revision of Agraphydrus Régimbart, 1903 II. The Indian Subcontinent" (PDF). Koleopterologische Rundschau. 88: 103–204. Archived from the original (PDF) on 2021-06-24. Retrieved 2022-01-07.
  5. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 Komarek, A. (2019). "Taxonomic revision of Agraphydrus Régimbart, 1903 III. Southeast Asia (except Philippines) and Australian Region (Coleoptera: Hydrophilidae: Acidocerinae)" (PDF). Koleopterologische Rundschau. 89: 151–316. Archived from the original (PDF) on 2021-06-24. Retrieved 2022-01-07.
  6. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 Komarek, A. (2020). "Taxonomic revision of Agraphydrus Régimbart, IV. Africa, Western Asia, and redescription of the genus (Coleoptera: Hydrophilidae: Acidocerinae)" (PDF). Koleopterologische Rundschau. 90: 127–200. Archived from the original (PDF) on 2021-02-14. Retrieved 2022-01-07.
  7. 1 2 3 4 5 6 7 8 9 10 11 12 Komarek, A.; Freitag, H. (2020). "Taxonomic revision of Agraphydrus Régimbart, 1903 V. Philippine species and their first DNA barcodes" (PDF). Koleopterologische Rundschau. 90: 201–242. Archived from the original (PDF) on 2021-02-14. Retrieved 2022-01-07.
  8. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 Komarek, A.; Hebauer, F. (2018-07-30). "Taxonomic revision of Agraphydrus Régimbart, 1903 I. China and Taiwan (Coleoptera: Hydrophilidae: Acidocerinae)". Zootaxa. 4452 (1): 1–101. doi:10.11646/zootaxa.4452.1.1. ISSN 1175-5334. PMID 30314249. S2CID 52975164.
  9. ↑ Régimbart, M. (1903). "Coléoptères aquatiques (Haliplidae, Dytiscidae, Gyrinidae et Hydrophi-lidae) recueillis dans le Sud de Madagascar par M. Ch. Alluaud (Juillet 1900 – Mai 1901)". Annales de la Société Entomologique de France. 72: 1–51.
  10. 1 2 3 Hebauer, F. (2000). "The genus Megagraphydrus Hansen, 1999, with description of new species (Coleoptera: Hydrophilidae)". Acta Coleopterologica. 16: 14–22.
  11. 1 2 3 4 5 Hansen, Michael (1999-01-01). "Fifteen new genera of Hydrophilidae (Coleoptera), with remarks on the generic classification of the family". Insect Systematics & Evolution. 30 (2): 121–172. doi:10.1163/187631200X00228. ISSN 1876-312X.
  12. ↑ Hansen, M. (1997). "A new subfamily for a remarkable new genus and species of Hydrophilidae from New Guinea (Coleoptera: Hydrophilidae)". Annales Zoologici. 47: 107–110.
  13. 1 2 3 4 5 6 7 Minoshima, Y. N.; Komarek, A.; Ôhara, M. (2015). "A revision of Megagraphydrus Hansen (Coleoptera, Hydrophilidae): synonymization with Agraphydrus Régimbart and description of seven new species". Zootaxa. 3930: 1–63. doi:10.11646/1-63 (inactive 9 December 2025). PMID 25781810.{{cite journal}}: CS1 maint: DOI inactive as of December 2025 (link)
  14. ↑ d’Orchymont, A. (1927). "Papers on Malayan aquatic biology. V. Notes on the Hydrophilidae in the Federated Malay States Museums". Journal of the Federated Malay States Museums. 13 (4): 246–252.
  15. 1 2 3 4 Yang, Zhen-ming; Jia, Fenglong; Jiang, Lu; Guo, Qiang (2021-05-18). "Four new species of Agraphydrus Régimbart, 1903 with additional faunistic record from China (Coleoptera, Hydrophilidae, Acidocerinae)". Deutsche Entomologische Zeitschrift. 68 (1): 189–205. doi:10.3897/dez.68.66200. ISSN 1860-1324. S2CID 236330170.
  16. ↑ Ribera, I.; Hernando, C.; Cieslak, A. (2019). "Aquatic Coleoptera of North Oman, with description of new species of Hydraenidae and Hydrophilidae" (PDF). Acta Entomologica Musei Nationalis Pragae. 59: 253–272. doi:10.2478/aemnp-2019-0021. hdl:10230/44839. S2CID 198381025.
  17. ↑ d’Orchymont, A. (1937). "Descriptions of three new Hydrophilidae from India". Records of the Indian Museum. 39: 29–31.
  18. 1 2 3 d’Orchymont, A. (1932). "Zur Kenntnis der Kolbenwasserkäfer (Palpicornia) von Sumatra, Java und Bali". Archiv für Hydrobiologie. Supplement Band IX: 623–714. [pl. XIV–XVII.]
  19. ↑ Satô, M.; Yoshitomi, H. (2004). "Discovery of a second representative of the genus Horelophopsis (Coleoptera, Hydrophilidae) from the Ryukyu archipelago, Japan". Elytra. 32: 41–49.
  20. ↑ Matsui, E. (1994). "Three new species of the genus Enochrus from Japan and Taiwan (Coleoptera: Hydrophilidae)". Transactions of the Shikoku Entomological Society. 20: 215–220.
  21. ↑ Jia, F. (1998). "A new genus Pseudopelthydrus gen. n. from Hainan Island, China (Coleoptera: Hydrophilidae: Hydrophilinae)". Chinese Journal of Entomology. 18: 225–230.
  22. ↑ Minoshima, Y. N.; Fujiwara, J. (2009). "Discovery of water scavenger beetle genus Megagraphydrus Hansen (Coleoptera, Hydrophilidae) from Japan, with description of a new species" (PDF). Elytra. 37: 53–64.
  23. ↑ Kuwert, A. (1890). "Bestimmungs-Tabellen der europäischen Coleopteren. XX. Heft. Hydrophilidae. II. Abteilung: Sphaeridiini und Helophorini". Verhandlungen des naturforschenden Vereins in Brünn. 28: 159–328.
  24. ↑ Satô, M. (1960). "One new genus and two new species of the subtribe Helocharae from Japan (Coleoptera: Hydrophilidae)". Transactions of the Shikoku Entomological Society. 6: 76–80.
  25. ↑ Minoshima, Yûsuke N. (2016). "Taxonomic review of Agraphydrus from Japan (Coleoptera: Hydrophilidae: Acidocerinae)". Entomological Science. 19 (4): 351–366. doi:10.1111/ens.12213. ISSN 1479-8298. S2CID 89394202.
  26. 1 2 Knisch, A. (1924). "Neue neotropische Palpicornier. (Col. Hydrophilidae. - Op. 16.)". Wiener Entomologische Zeitung. 41: 114–140.
  27. ↑ d’Orchymont, A. (1937). "Contribution à l'étude des Palpicornia IX". Bulletin et Annales de la Société Entomologique de Belgique. 77: 213–255.
  28. ↑ Jia, Fenglong (2010-06-08). "Megagraphydrus puzhelongi, sp. n., a new water scavenger beetle from China (Coleoptera: Hydrophilidae: Hydrophilinae)". Zootaxa. 2498 (1): 65. doi:10.11646/zootaxa.2498.1.6. ISSN 1175-5334.
  29. ↑ Balfour-Browne, J. (1958). "La Reserve naturelle integrale du Mont Nimba, Guinea. VI. Coléoptères Hydrophiloides". Mémoires de l'Institut français d'Afrique noire. 53: 169–190.