Micridium newtoni, 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 : 247-248

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.6045214
persistent identifier	https://treatment.plazi.org/id/03E64B08-E326-FFFB-8585-5DACFE20EDEE
treatment provided by	Plazi
scientific name	Micridium newtoni
status	sp. nov.

Treatment

Micridium newtoni View in CoL sp.n.

( Figs. 12 View FIGURES 1 – 14 , 20 View FIGURES 17 – 32 , 52, 60 View FIGURES 47 – 60 , 70 View FIGURES 61 – 71 , 81 View FIGURES 72 – 81 , 89a/b, 98, 100)

Habitus Fig. 12 View FIGURES 1 – 14 . Length 0.76 mm. Colour: yellow brown, head dark brown, pubescence, legs and antennae pale yellow. Antennomeres 3–11 length 0.26 mm. Width across eyes 0.22 mm. Mentum almost square, submentum with 3 setae. Pronotum: without linear depressions, lateral margins evenly rounded, widest just behind middle, length 0.17 mm, width 0.28 mm. Fig. 20 View FIGURES 17 – 32 . Scutellum Fig. 100 View FIGURES 100 – 101 . Elytra length 0.52 mm, width 0.29 mm. Mesoventrum: collar with a short pair of posteriorly directed medial arms bearing long pubescence, Fig. 60 View FIGURES 47 – 60 . Mesepiventra: reticulation absent, hind angles smoothly rounded, Fig. 58 View FIGURES 47 – 60 . Metaventrum: metepiventral sutures reaching to posterior margin, Fig. 70 View FIGURES 61 – 71 . Wings of usual ptiliid type.

Male: posterior intercoxal process of metaventrum with a fringe of elongate setae, Fig. 98. Aedeagus Fig. 89a/ b.

Female: spermatheca Fig. 81 View FIGURES 72 – 81 .

Etymology. Named after the collector Dr A.F.Newton who has been very helpful to the writer.

Diagnosis. The large size and long elytra distinguish the species.

Type data: Holotype: ♀, Chile, Cautín Pr., Volcán Villarrica , site 653, Noth. domb.-pumilio forest w/ Chusquea, window trap, 1250m, 15–29.xii.1982, A. Newton & M. Thayer ( FMNH) . Paratype: ♂, same data as holotype ( BMNH); the specimen was found missing head and antennae and has been pinned on a small piece of acrylic as a disarticulated slide using Euparal as a mountant.

FIGURES 82–90. Micridium aedeagi. 82a/b. M. attenboroughi sp. n. 83a/b. M. elegans sp. n. 84. M. halidaii (Matthews) . 85. M. foveatum sp. n. 86a/b. M. thayerae sp. n. 87a/b. M. proprium sp. n. 88a/b. M. quadridens sp. n. 89a/b M. newtoni sp. n. 90a/ b M. rhodeanum (Casey) .