Micridium attenboroughi, Darby, Michael, 2017

Darby, Michael, 2017, Taxonomic review of the genera Micridium Motschulsky, 1869 and Micridina Johnson, 1969 (Coleoptera: Ptiliidae) with eleven new species including the first records from South America and Madagascar, Zootaxa 4242 (2), pp. 233-254 : 237

publication ID	https://doi.org/10.11646/zootaxa.4242.2.2
publication LSID	lsid:zoobank.org:pub:0DD1868D-4EF5-4FB7-AEE9-372644800A79
DOI	https://doi.org/10.5281/zenodo.6045185
persistent identifier	https://treatment.plazi.org/id/03E64B08-E32C-FFF0-8585-5DB2FC47EFCA
treatment provided by	Plazi (2017-03-10 08:26:22, last updated 2024-11-26 07:04:06)
scientific name	Micridium attenboroughi
status	sp. nov.

Treatment

Micridium attenboroughi View in CoL sp.n.

( Figs. 10 View FIGURES 1 – 14 , 28 View FIGURES 17 – 32 , 34 View FIGURES 33 – 41 , 50 View FIGURES 47 – 60 , 63 View FIGURES 61 – 71 , 72 View FIGURES 72 – 81 a/b, 82a/b, 95)

Habitus Fig. 10 View FIGURES 1 – 14 . Length 0.56 mm. Colour: yellow/brown, pubescence, legs and antennae pale yellow. Antonnomeres 3–11 length 0.20 mm. Width across eyes 0.16 mm. Mentum: narrowed to base, sides straight, submentum with 3 setae, Fig. 34 View FIGURES 33 – 41 . Pronotum length 0.15 mm, width 0.21 mm, with two distinct, almost parallel, linear depressions, Fig. 28 View FIGURES 17 – 32 . Elytra length 0.35 mm, width 0.27 mm. Mesoventrum: keel narrow not reaching posteriorly beyond mesocoxae, Fig. 50 View FIGURES 47 – 60 . Mesepiventra without clear reticulation, evenly rounded to mesocoxae, Fig. 50 View FIGURES 47 – 60 . Metaventrum: metepiventral sutures reaching posterior margin, Fig. 63 View FIGURES 61 – 71 ; posterior intercoxal process without prominent setae in male +/-straight between lateral points, Fig. 95. Wings of usual ptiliid type.

Male: aedeagus Figs. 82a/b.

Female: spermatheca Figs. 72 View FIGURES 72 – 81 a/b.

Etymology. I have great pleasure in naming this species after Sir David Attenborough, the British naturalist and broadcaster, who has recently celebrated his 90th birthday.

Diagnosis. The clearly marked, almost parallel, pronotal depressions reaching to the midpoint of the thorax will distinguish this species from all others but M. quadridens sp. n. from which it may be separated by the shorter antennae and by the form of the male characteristics.

Type data: Holotype: ♀; Bolivia, Cochabamba; BOL / Nov 2013/02, ca. 40 km E of Chimore. GPS 22, S. 17° 05' 14" E. 64° 46' 17", 213m , 22.xi.2013, sifting litter, Winkler app. extr., P. Baňař lgt. (UASC). Paratypes: ♂, same data as holotype ( MMBC) ; 2♀ 1♂, Bolivia, Cochabamba, BOL / Nov 2013/04 ca 8 km E of Villa Tunari , GPS 24, S. 16° 59' 11" E. 65° 20' 44", 225m , 23.xi.2013, P. Baňař lgt. (MMBC, BMNH).

Figures

FIGURES 1 – 14. Micridium habitus. 1. M. angulicolle (Fairmaire) 2. M. halidaii (Matthews) 3. M. vittatum Motschulsky 4. M. lineatum Le Conte 5. M. rhodeanum (Casey) 6. M. hilli (Johnson) 7. M. johnsoni sp. n. 8. M. elegans sp. n. 9. M. oweni sp. n. 10. M. attenboroughi sp. n. 11. M. boliviense sp. n. 12. M. newtoni sp. n. 13. M. foveatum sp. n. 14. M. thayerae sp. n. 15. M. proprium sp. n. 16. M. quadridens sp. n.

FIGURES 17 – 32. Micridium pronotums. 17. M. quadridens sp. n. x 605. 18. M. inornatum sp. n. x 590. 19. M. boliviense sp. n. x 625. 20. M. newtoni sp. n. x 695. 21. M. foveatum sp. n. x 830. 22. M. johnsoni sp. n. x 790. 23. M. elegans sp. n. x 810. 24. M. thayerae sp. n. x 650. 25. M. halidaii (Matthews) x 770. 26. M. hilli (Johnson) x 740. 27. M. oweni sp. n. x 575. 28. M. attenboroughi sp. n. x 675. 29. M. angulicolle (Fairmaire). 30. M. rhodeanum (Casey) 31. M. vittatum Motschulsky 32. M. lineatum Le Conte.

FIGURES 33 – 41. Micridium mentums. 33. M. oweni sp. n. x 1420. 34. M. attenboroughi sp. n. x 1840. 35. M. boliviense sp. n. x 1280. 36. M. elegans sp. n. x 1320. 37. M. proprium sp. n. x 2360. 38. M. quadridens sp. n. x 1900. 39. M. johnsoni sp. n. x 1600. 40. M. foveatum sp. n. x 1220. 41. M. thayerae sp. n. x 1160.

FIGURES 47 – 60. Micridium mesoventra. 47. M. inornatum sp. n. x 540. 48. M. quadridens sp. n. x 710. 49. M. boliviense sp. n. x 695. 50. M. attenboroughi sp. n. x 870. 51. M. proprium sp. n. x 920. 52. M. newtoni sp. n. 53. M. johnsoni sp. n. x 655. 54. M. thayerae sp. n. x 860. 55. M. halidaii (Matthews) x 615. 56. M. oweni sp. n. x 585. 57. M. elegans sp. n. x 705. 58. M. hilli (Johnson) x 760. 59. M. foveatum sp. n. x 1300. 60. M. rhodeanum (Casey) x 545.

FIGURES 61 – 71. Micridium metepiventral sutures. 61. M. johnsoni sp. n. x 530. 62. M. thayerae sp. n. x 505. 63. M. attenboroughi sp. n. x 670. 64. M. foveatum sp. n. x 735. 65. M. quadridens sp. n. x 710. 66. M. elegans sp. n. x 730. 67. M. oweni sp. n. x 585. 68. M. hilli (Johnson) x 760. 69. M. halidaii (Matthews) x 615. 70. M. newtoni sp. n. x 710. 71. M. rhodeanum (Casey) x 545.

FIGURES 72 – 81. Micridium spermathecae. 72 a / b. M. attenboroughi sp. n. 73. M. boliviense sp. n. 74. M. elegans sp. n. 75. M. foveatum sp. n. 76. M. halidaii (Matthews) (may have been broken or distorted in preparation). 77 a / b. M. johnsoni sp. n. 78. M. hilli (Johnson) 79. M. thayerae sp. n. 80. M. inornatum sp. n. 81. M. newtoni sp. n.