Phytomia memnon, Meyer & Goergen & Jordaens, 2020
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publication ID |
https://doi.org/ 10.11646/zootaxa.4803.2.1 |
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publication LSID |
lsid:zoobank.org:pub:0C0F5754-9530-4072-AF45-BDFE4A8A2B57 |
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persistent identifier |
https://treatment.plazi.org/id/A6028878-8BC9-4FEF-8AD8-1AD0CA438A4C |
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taxon LSID |
lsid:zoobank.org:act:A6028878-8BC9-4FEF-8AD8-1AD0CA438A4C |
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treatment provided by |
Plazi |
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scientific name |
Phytomia memnon |
| status |
sp. nov. |
Phytomia memnon View in CoL sp. nov.
( Figs 8 View FIGURES 1–10 , 34 View FIGURES 29–36 , 47 View FIGURES 37–48 , 70 View FIGURES 61–72 , 91 View FIGURES 85–100 )
urn:lsid:zoobank.org:act:A6028878-8BC9-4FEF-8AD8-1AD0CA438A4C
Material examined. HOLOTYPE: ETHIOPIA, ♂, Jimma, Gimo, 11.II.2016, L. Geeraert ( KMMA) . PARATYPES: ETHIOPIA, 2♀, Irga-Alem , 25.IX.1935, Saska ( KMMA) ; Jimma , Gimo , 1♂, 24.II.2016, L. Geeraert ( KMMA) ; 1♀, Mulata Mts, Harrar Prov. , 22.X.1925 ( AMNH) . KENYA, Marsabit Forest , 20.IV.2016, R.S. Copeland , 2♀ ( ICIPE) ; 1♀ ( NMK) .
Body size. Body length (n=7): 10.5–11.4 mm. Wing length (n=7): 8.6–10.6 mm.
Description. MALE ( Fig. 8 View FIGURES 1–10 ). Head. Eye bare; holoptic, touching for at most 1.5 times length of ocellar triangle, facets enlarged in dorsal half. Frons brown to black; with greyish brown pollinosity; dispersed pilosity of
medium long to long pale pile; rugose area shining black, occupying slightly less than one-third of entire width and half of entire height; with shorter dispersed pale pile. Face ground colour black; with dispersed greyish to greyish brown pollinosity, in parts weakly shining black; dispersed pilosity of short pale pile; facial tubercle elongated, strongly pronounced. Gena colour and pollinosity as face; with long pale pilosity. Occiput dorsal third black, with greyish pollinosity; ventrally more densely yellow-white, with dispersed pale pile. Antennal segments brown to black-brown, apical margin of basoflagellomere narrowly orange; arista yellow-brown, in basal half with medium long pile equal to width of pedicel.
Thorax. Scutum and scutellum black ground colour; with greyish pollinosity, in centre of scutum more greyishbrown; covered with dense pile of long pale brown pilosity, along lateral margins and on scutellum paler pile, medial part of scutellum mixed with darker pile. Pleural sclerites ground colour black, with greyish brown pollinosity; covered with dispersed pile of long pale pile except meron, anterior part of katepisternum and anterior anepisternum.
Legs. Yellow-orange to black-brown. Fore leg, femur orange-brown to black-brown, apical margin narrowly paler; with dense short black pilosity, anteriorly and posteriorly longer and basally with pale pile; tibia pale in basal fourth to fifth, otherwise orange-brown to brown; with short black pilosity, except in basal part where pale; tarsal segments yellow-orange. Mid leg as in fore leg, except tibia pale for basal third. Hind leg ( Fig. 34 View FIGURES 29–36 ), femur slightly thickened; black-brown, in basal third and at apical tip sometimes paler; dorsally with long pale pilosity, ventrally predominantly with long dark pilosity, otherwise short dark pilosity; tibia orange-brown to black-brown, narrowly pale at base; dorsally and ventrally with short to medium-long dense black pilosity, except at basal fifth dorsally where pale; tarsal segments yellow-orange. Male genitalia as in Fig. 91 View FIGURES 85–100 .
Wing. Mainly hyaline (as in P. bezzii , cf. Fig. 45 View FIGURES 37–48 ). Microtrichia along base; also weakly developed patch in medial part of wing anteriorly from apex of vein Sc, posteriorly along medial part of cell r 1, basal part of cell r 2+3, and into cell r where it reaches the junction of vein M with crossvein bm-cu. Calypters dark with fringe of dark pile.
Abdomen ( Fig. 70 View FIGURES 61–72 ). Mainly orange-brown to black-brown ground colour. Terga 2–4 with brownish pollinosity and darker shining medial bulla; pilosity with dispersed short to medium long pale pile, longer along margins; anterolateral part of tergum 2 with patch of more conspicuous dense short white pile, joined narrowly along anterior margin. Sterna black-brown, with widely dispersed long pale pile. Male genitalia as in Fig. 91 View FIGURES 85–100 .
FEMALE. As male except for the following character states. Eye, facets of equal size; dichoptic. Frons black ground colour; with greyish to greyish brown pollinosity, except in dorsal third where dark brown; covered with short dispersed pale pile, except in dorsal third where extensively black; rugose area shining brown; occupying onethird of entire width and equal in height to 1.5 times ocellar triangle. Thorax, pilosity scutum and scutellum more greyish, except in medial part where black. Legs, mid and hind femur with pilosity more extensively pale in basal part. Wing ( Fig. 47 View FIGURES 37–48 ), microtrichia coverage slightly more extensive, medial patch more densely so.
Diagnosis. Recognizable by the completely black pilosity along the dorsal margin of the hind tibia.
Distribution. Ethiopia, Kenya.
Etymology. Named after the Greek mythological figure Memnon, referring to the type locality. The specific epithet should be treated as a noun in apposition.
Comments. This species belongs to the bulligera group and shares the characteristics of distinct medial bulla on terga 2–4, tergum 2 without continuous yellow fascia, and wings hyaline with microtrichial patches basally and in medial part. It differs from other species within this group by the completely black pilosity along the dorsal margin of the hind tibia (at most one-fifth of the basal part with silvery pile) and the medial patch of microtrichia on the wing weakly developed. Geographically all specimens encountered so far originate from Ethiopia and the northern adjacent parts of Kenya. DNA barcoding showed that the mean p-distance between P. memnon sp. nov. and its closest relatives is 2.6 % (with P. pubipennis ) and 6.3 % (with P. bulligera ) while mean intraspecific p-distances are much lower (0.2 and 1.1 % for P. bulligera and P. memnon sp. nov., respectively; we had only one barcode for P. pubipennis ).
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