Andreimyrme ursasolaris 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 ursasolaris

description: Andreimyrme ursasolaris Williams, sp. nov.
(Figs 17, 34, 47, 61, 75, 88, 91)
Diagnosis. FEMALE. Head black; frons, vertex, and gena punctures large confluent; vertex without medial 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 blackish. Mesosoma entirely red; dorsal thoracic length 0.92× mesosomal width; humeral carina weakly developed; posterior propodeal face without medial carina. Legs black with femoral bases yellowish red. T1–2 metallic blue, T3–6 blackish; T2 length 0.95× width; T2 disc obscurely flattened medially, with anteromedial spot mostly obliterated, represented by few appressed anteromedial silvery setae; T2 punctures small confluent; T2 posterior band wide, pale golden, complete; T3 with wide uniform band of golden setae; S1 yellowish red; S2 punctures large sparse; surface of pygidial plate finely longitudinally rugose anteriorly and smooth posteriorly; lateral margins of pygidial plate weakly convergent anteriorly, carinate throughout. MALE. Unknown.
Description. FEMALE. Body length 6.3 mm. Color and setae. Head black with antennal rim and palpi dark brown; mandible except apical 1/4 and basal outer face yellowish brown; scape and pedicel dark red-brown; F2–10 ventrally brown; mesosoma yellowish red; legs yellowish red with femoral apices, tibiae, and tarsi black; tibial spurs yellow; metasoma black with T1–2 and S2 metallic blue; S1 orange. Frons with sparse long recumbent golden and sparser long erect black setae; vertex with sparse short blackish golden and sparser long erect black setae; antennal scrobe with sparse short appressed pale golden setae; eye dorsal margin with long erect black setae; gena, femora, tibiae and S2 with sparse long recumbent and sparser long erect pale golden setae; clypeus with sparse short recumbent golden setae; mandible, trochanters, 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 golden setae; scape and procoxa with sparse long recumbent golden setae; pedicel and F1 with sparse short recumbent golden setae; F2–10 with dense extremely short recumbent golden setae; pronotal dorsum with sparse suberect blackish setae; thoracic dorsum posterior to pronotum with sparse short and long suberect blackish setae; posterior propodeal face with sparse long erect interspersed blackish and golden setae; propleuron with sparse short recumbent and sparser long erect pale golden setae; lateral face of mesosoma with sparse short appressed pale golden setae; ventral half of mesopleuron and lateral propodeal face with sparse short appressed and sparser long erect pale golden setae; meso- and metacoxae with sparse short appressed and sparser short erect golden setae; tarsi with sparse long appressed golden setae; T2 disc with dense short recumbent and sparse short erect black setae; T4–5 with sparse long recumbent and sparser long erect black 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 anteromedial spot reduced to few silvery setae; T2 with lateral golden felt line; T3 with wide uniform band of dense appressed golden setae.
Structure. Head 1.11× as wide as long in dorsal view; lateral margins strongly convergent behind eye; posterior margin truncate; vertex rounded posteriorly in lateral view; gena wide with GOI = 1.1; vertex without medial longitudinal carina but with many intervals aligned to form apparent parallel striae; lower frons without medial longitudinal 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 1.03× eye height; eye height 2.22× 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, laterally wavy. 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 1.0× its width, 1.17× 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 = 81:66:74:71:71:100; dorsal thoracic length 0.92× pronotal width; thoracic dorsum not posteriorly sloping; anterior margin of dorsum of pronotum rounded, with a pair of very weak rounded sublateral tubercles; pronotum laterally weakly projecting but not forming distinct angle at pronotal spiracle; lateral margin of mesosoma weakly crenulate; humeral angle angulate; humeral carina present; 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 six spines on outer face; protarsus with external comb of long spines.
T1 without distinct dorsum; T2 disc obscurely flattened; dorsal T2 length 0.95× T2 width; S1 with straight medial longitudinal carina; S2 without anteromedial longitudinal carina; posterior margin of S6 bidentate; pygidial plate slightly convex, elongate; lateral margins of pygidial plate weakly convergent anteriorly, weakly carinate throughout but not enclosed.
Frons, vertex, gena, and thoracic dorsum with large confluent punctures; clypeus, pedicel, F1, pronotal collar, meso- and metacoxae, trochanters, femora, tibiae, and tarsi with minute sparse punctures; scape and T1 with small sparse punctures; F2–10, lateral face of pronotum, metapleuron, and procoxa with minute dense punctures; posterior propodeal face reticulate; propleuron with minute sparse and small sparse punctures; mesopleuron and lateral propodeal face with minute dense punctures, with small sparser punctures; T2 disc with small confluent punctures; T2 laterally and S1–2 with large sparse punctures; T3–6 and S3–6 with small dense punctures; pygidial plate with obscure longitudinal scratches anterolaterally, smooth posteriorly.
Type material. 1♀. Holotype ♀: Indonesia: ACEH: Sumatra, Aceh, Ketambe, 400 m, I.1995, Malaise trap near rainforest edge, Y. v. Nierop & C. v. Achterberg leg. [RMNH].
Distribution. Indonesia: Aceh.
Etymology. The specific name ursasolaris is from a Latin singular feminine noun ursa, meaning “female bear”, and a Latin singular feminine adjective solaris, meaning “of the sun”, a compound Latin adjective in the nominative case. This species is named in honor of the Sun Bear, Helarctos malayanus (Raffles, 1821), a charismatic mammal species native to Southeast Asia, including Sumatra.
Remarks. Like the Bornean species, A. neaera and A. sarawakensis, this new species has the metasoma metallic blue and the mandible wide, but it can be recognized by having a silvery setal band on T3 (T3 setae blackish in A. neaera and A. sarawakensis). The only other species with a metallic blue metasoma, A. auricoma sp. nov., has the mandible slender, unlike A. ursasolaris sp. nov.
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 28-29, DOI: 10.11646/zootaxa.5061.1.1, http://zenodo.org/record/5642158