Microdon irwini Reemer

Reemer, Menno & Bot, Sander, 2015, Six new species of Microdon Meigen from Madagascar (Diptera: Syrphidae), Zootaxa 4034 (1), pp. 127-147 : 136

publication ID

https://doi.org/ 10.11646/zootaxa.4034.1.6

publication LSID

lsid:zoobank.org:pub:F4D27705-2963-4CBF-A3A3-017BAAB69C25

DOI

https://doi.org/10.5281/zenodo.6098459

persistent identifier

https://treatment.plazi.org/id/03F16E44-FFE1-FFB4-FF27-CBCEFE0A73CD

treatment provided by

Plazi

scientific name

Microdon irwini Reemer
status

sp. nov.

Microdon irwini Reemer View in CoL sp. n.

( Figs 26–31 View FIGURES 26 – 29 View FIGURES 30 – 31 )

Diagnosis. One of the two known Madagascan Microdon species with bronze coloured abdomen. Distinguishable from M. tsara by its largely black tibiae and entirely microtrichose alula.

Type material. HOLOTYPE. Adult male. MADAGASCAR. Label 1: " MADAGASCAR: Fianarantsoa / Prov., Parc National Ranomafana, /radio tower at forest edge, elev. / 1127 m., 12-25.vii.2005, ex: malaise / trap, 21°15.05'S 47°24.43'E, coll: / M. Irwin & R. Harin'Hala, MG-09B-119". Coll. CAS. PARATYPES. One male of same locality as holotype, but date 26.ii-5.iii.2005 (coll. RMNH). One female of Madagascar, Fianarantsoa Prov., Belle Vue, 1.2 km S of Ranomafana National Park entrance, Malaise in rainforest, 28.i- 4.ii. 2002, 1095 m., 21°15.99'S 47°25.21'E, leg. R. Harin'Hala & M.E. Irwin (coll. CAS).

Description of male holotype. Body size: 7 mm. Head. Face and gena black with strong bronze sheen; golden yellow pilose. Oral margin not produced. Frons blackish brown; black pilose anteriorly, golden yellow pilose posteriorly. Vertex bronze black; golden yellow pilose. Occiput bronze black; golden yellow pilose, thin white pollinose. Eye bare. Antennal fossa about as wide as high. Antenna with scape and pedicel brown, basoflagellomere black. Arista brown, about 4/5 of length of basoflagellomere. Thorax. Mesoscutum, postpronotum and postalar callus bronze black; long erect golden yellow pilose. Scutellum trapezoid, almost triangular; bronze black; golden yellow pilose; with pair of apical calcars approximately as long as half the length of the scutellum, with mutual distance about 1/4 of width of scutellum at base. Pleuron black. Propleuron bare. Anepisternum with slight sulcus separating anterior from posterior part; golden yellow pilose anteriorly and posterodorsally, with widely bare part in between. Anepimeron entirely golden yellow pilose. Katepisternum white pilose dorsally, bare ventrally. Katepimeron without pile, shining. Katatergum and anatergum long and short microtrichose, respectively. Calypter yellow, halter white. Wing. A little greyish antero-apically. Microtrichose, except bare on cell bc, basal 1/6 of c, basal 1/5 of r1, basal 3/4 of br, basal 4/5 of bm, and anterobasal 1/6 of cell cup. Legs. Femora blackish brown, somewhat paler posteriorly; black pilose, except white pilose posterobasally. Tibiae blackish brown, except yellow at apical 1/4 to 1/3; black pilose. Tarsi yellow; mixed yellow and black pilose. Coxae and trochanters blackish; white pilose, except fore coxa apically golden yellow pilose. Abdomen. Tergite 1 black; white pilose. Tergite 2 bronze black, except duller black anteromedially; golden yellow pilose. Tergite 3 bronze black, except duller black on anterior 1/3; golden yellow pilose. Tergite 4 bronze shining, black ground colour hardly visible, with ground colour posteriorly yellow; golden yellow pilose. Pregenital segments yellow; yellow pilose dorsally, black pilose ventrally. Sternites blackish brown. Sternite 1 bare. Sternite 2 yellow pilose. Sternites 3 and 4 mixed black and yellow pilose. Male genitalia as in Fig. 29 View FIGURES 26 – 29 .

Female. Body size: 8 mm. As male, except for usual sexual dimorphism.

Etymology. This species is named after Mike E. Irwin, one of the collectors of the specimens on which this description is based.

CAS

California Academy of Sciences

RMNH

National Museum of Natural History, Naturalis

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Syrphidae

Genus

Microdon

GBIF Dataset (for parent article) Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF