Andreimyrme yotoi Okayasu & Williams & Lelej & Pham 2021, sp. nov.
Creators: name: Okayasu, Juriya
name: Williams, Kevin A.
name: Lelej, Arkady S.
name: Pham, Thai Hong
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Mutillidae
Andreimyrme
Andreimyrme yotoi

description: Andreimyrme yotoi Okayasu, sp. nov.
(Figs 18, 35, 48, 62, 76, 89, 91)
Diagnosis. FEMALE. Head black; frons, vertex, and gena punctures large confluent; vertex with medial longitudinal carina; clypeus with medial tubercle. Mandible wide tridentate, vertical to apex, dorsal subapical tooth distinct but smaller than middle subapical tooth, middle subapical tooth subequal to apical tooth. F1 orange. Mesosoma entirely red; dorsal thoracic length 0.89× mesosomal width; humeral carina lamellately projecting; posterior propodeal face without medial longitudinal carina. Legs entirely orange. Metasoma black; T2 length 0.85× width; T2 disc widely depressed medially, with anteromedial large ovate spot of golden setae; T2 punctures large confluent; T2 posterior band wide, golden, complete; T3 with wide uniform band of golden setae; S1 yellowish red; S2 punctures large dense; surface of pygidial plate longitudinally rugose anterolaterally, smooth medially and granulate posterolaterally; lateral margins of pygidial plate subparallel. MALE. Unknown.
Description. FEMALE. Body length 9.2 mm. Color and setae. Head black with antennal rim yellowish brown; mandible basal 3/4 reddish yellow; prementum and stipes dark brown; palpi brownish yellow; scape, pedicel, F1, and F2–10 ventrally orange; mesosoma yellowish red; legs orange with apical tarsomere black; tibial spurs reddish yellow; metasoma black with T1 anterior 2/3 and S1 yellowish red; S2 dark brown. Frons, vertex, thoracic dorsum, coxae, and trochanters with sparse short recumbent and sparser long erect golden setae; antennal scrobe and tarsi with sparse long appressed golden setae; eye dorsal margin with long erect black setae; gena, clypeus and scape with sparse long recumbent golden setae; mandible, posterior propodeal face, T1, T2 around margins, T3, T6, S1, and S3–6 with sparse long erect golden setae; prementum, stipes and palpi with sparse extremely short erect pale golden setae; pedicel and F1 with sparse short recumbent golden setae; F2–10 with dense extremely short recumbent golden setae; propleuron and mesopleural ventral half with sparse short appressed and sparser long erect golden setae; lateral face of mesosoma with sparse short appressed golden setae; femora, tibiae, and S2 with sparse long recumbent and sparser long erect golden setae; T2 disc with dense short recumbent and sparse short erect black setae; T4–5 with dense short recumbent and sparse long erect golden setae; pygidial plate glabrous with thickened lateral pygidial fringe of long erect golden setae; T1 and S2–6 with posterior fringe of sparse long golden setae; T2 with large ovate (1.24× as long as wide) anteromedial spot of dense appressed golden setae reaching anterior margin of T2, and with posterior narrow band of dense appressed golden setae slightly widened medially; minimum distance between spot and band on T2 0.83× spot length; T2 with lateral golden felt line; T3 with wide uniform band of dense appressed golden setae.
Structure. Head 1.43× as wide as long in dorsal view; lateral margins strongly convergent behind eye; posterior margin truncate; vertex rounded posteriorly in lateral view; gena narrow with GOI = 1.56; vertex with medial longitudinal carina reaching upper frons; lower frons without medial groove; genal carina distinct; hypostomal tooth sharp; antennal scrobe with dorsal carina reaching mandibular base; eye oval, slightly protruding from head capsule; minimum distance between eyes 1.10× eye height; eye height 3.08× malar distance; vertex width 1.05× pronotal width; clypeus medially elevated and forming short longitudinal tubercle not reaching anterior margin, with subventral transverse ridge; anterior margin of transverse ridge medially shallowly emarginated. Mandible wide tridentate, vertical to apex, dorsal subapical tooth distinct but smaller than middle subapical tooth, middle subapical tooth subequal to apical tooth; ventral margin straight. Prementum with posterior rounded tubercle. Scape bending medially; F1 length 1.12× its width and F2 length; F2–9 almost same in length and width; F10 slightly longer than F9, conical and weakly depressed.
Mesosoma broadest at pronotal spiracles, with lateral margins subparallel; ratio between head width:humeral width:pronotal width:mesonotal width:propodeal width:metasomal width = 100:74:81:72:74:116; dorsal thoracic length 0.89× pronotal width; thoracic dorsum posteriorly sloping in lateral view; anterior margin of dorsum of pronotum nearly straight, with a pair of small pointed sublateral teeth; pronotum laterally weakly projecting but not forming distinct angle at pronotal spiracle; lateral margin of mesosoma weakly crenulate; humeral angle angulate; humeral carina lamellately projecting; prescutellar scales and metanotal-propodeal suture obliterated; dorsal and lateral propodeal faces not separated by carina; posterior propodeal face without medial longitudinal carina.
Metacoxa with weak complete inner longitudinal carina; meso- and metatibiae with a pair of longitudinal rows of four spines on outer face; protarsus with external comb of long spines.
T1 without distinct dorsum; T2 disc medially widely depressed; dorsal T2 length 0.85× T2 width; S1 with straight medial longitudinal carina; S2 with anteromedial short inconspicuous longitudinal carina; posterior margin of S6 bidentate; pygidial plate slightly convex, elongate; lateral margins of pygidial plate subparallel, weakly carinate throughout but not enclosed.
Frons, vertex, gena, thoracic dorsum, T1 posterior half, and T2 disc with large confluent punctures; clypeus, scape, pedicel, pronotal collar, propleuron, coxae, trochanters, femora, tibiae, and tarsi with minute sparse punctures; flagellum, mesopleuron, metapleuron, and lateral propodeal face with minute dense punctures; posterior propodeal face reticulate; lateral face of pronotum, T2 laterally, and S2 with large dense punctures; T1 anterior half and S1 with large sparse punctures; T3–6 with small dense punctures; S3–6 with small sparse punctures; pygidial plate finely longitudinally rugose laterally on anterior 2/3, granulate posterolaterally, unsculptured medially.
Type material. 2♀. Holotype ♀: Vietnam: NINH BINH: Nho Quan, Cuc Phuong National Park, 500 m, 20.348°N 105.598°E, 9–11.VIII.2016, yellow pan trap, Y. Komeda & T. Mita leg. [VNMN]. Paratype: Laos: ATTAPEU: Thong Kai Ohk, Ban Kachung, (Mai) env., 1200–1450 m, 15°01–02′N 107°26–27′E, 10–23.VI.2011, M. Brancucci, M. Geier, D. Hauck, Z. Kraus, A. Phantala & E. Vongphachan leg. [1♀ NMB].
Distribution. Laos: Attapeu. Vietnam: Ninh Binh.
Etymology. The specific name yotoi is dedicated to the type collector Yôto Komeda.
Remarks. This new species is most similar to A. naturalis sp. nov. as discussed above. The holotype of this species was collected in a yellow pan trap together with males of Odontomutilla Ashmead, 1899 (Mutillinae: Mutillini) and Krombeinidia Lelej, 1996 (Mutillinae: Trogaspidiini), and females of Hemutilla Lelej, Tu & Chen, 2014 (Sphaeropthalminae), Bischoffitilla Lelej, 2002 (Myrmillinae), Mickelomyrme Lelej, 1995, and Smicromyrme (Mutillinae: Smicromyrmini). However, no potential male was found.
description: Published as part of Okayasu, Juriya, Williams, Kevin A., Lelej, Arkady S. & Pham, Thai Hong, 2021, Review of female Andreimyrme Lelej (Hymenoptera: Mutillidae: Smicromyrmini), pp. 1-38 in Zootaxa 5061 (1) on pages 29-32, DOI: 10.11646/zootaxa.5061.1.1, http://zenodo.org/record/5642158