Andreimyrme naturalis 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 naturalis

description: Andreimyrme naturalis Williams, sp. nov.
(Figs 5, 23, 40, 54, 67, 81, 90)
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 dark brown. Mesosoma entirely red; dorsal thoracic length 1.01× mesosomal width; humeral carina lamellately projecting; posterior propodeal face with medial longitudinal carina with sharp tubercle at anterior edge. Legs largely black. Metasoma black; T2 length 0.87× width; T2 disc depressed medially, with anteromedial large ovate spot of golden setae; T2 punctures small confluent; T2 posterior band wide, pale golden, complete; T3 with wide uniform band of pale golden setae; S1 yellowish red; S2 punctures large dense; surface of pygidial plate longitudinally rugose anteriorly and smooth posteriorly; lateral margins of pygidial plate weakly convergent anteriorly, carinate on posterior half. MALE. Unknown.
Description. FEMALE. Body length 9.5 mm. Color and setae. Head black with antennal rim, palpi, scape mostly, F1, and F2–10 dorsally dark brown; mandible except apical 1/4 and basal outer face yellowish brown; scape apex and pedicel orange-brown; F2–10 ventrally yellow-brown; mesosoma yellowish red; legs black with coxae, trochanters, and femoral bases yellowish red; tibial spurs yellow; metasoma black. Frons with sparse long recumbent golden and sparser long erect black setae; vertex with sparse short golden and sparser long erect black setae; antennal scrobe and lateral face of mesosoma 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, pedicel and F1 with sparse short recumbent golden setae; mandible, posterior propodeal face, 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; F2–10 with dense extremely short recumbent golden setae; pronotal dorsum with sparse short recumbent orange and sparser long erect brown setae; thoracic dorsum posterior to pronotum with sparse short recumbent golden and sparser long erect brown setae; propleuron with sparse short recumbent and sparser long erect pale golden setae; mesopleuron ventral half 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 with lateral golden felt line; T2 with large ovate anteromedial spot of dense appressed pale golden setae; T2 posteriorly and T3 entirely with wide uniform band of dense appressed golden setae.
Structure. Head 1.22× 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 = 1.17; vertex with medial longitudinal carina reaching middle frons; lower frons with short 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 1.12× eye height; eye height 3.0× malar distance; vertex width 1.05× pronotal width; clypeus medially elevated and having short longitudinal tubercle dorsally, 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 1.00× its width, 1.10× F2 length; F2–9 almost same in length and width; F10 slightly longer than F9, conical and weakly depressed.
Mesosoma broadest at humeral angle, with lateral margins weakly convergent; ratio between head width: humeral width:pronotal width:mesonotal width:propodeal width:metasomal width = 99:84:84:82:80:121; dorsal thoracic length 1.01× pronotal width; thoracic dorsum not posteriorly sloping; anterior margin of dorsum of pronotum relatively straight, with a pair of rounded sublateral tubercles; pronotum laterally not projecting; lateral margin of mesosoma weakly crenulate; humeral angle sharp angulate; humeral carina lamellate; prescutellar scales and metanotal-propodeal suture obliterated; dorsal and lateral propodeal faces separated by apparent wavy carina; posterior propodeal face with strong medial longitudinal carina and sharp tubercle anteriorly;
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 with broad medial depression; dorsal T2 length 0.87× T2 width; S1 with straight medial longitudinal carina; S2 with obscure anteromedial short inconspicuous longitudinal carina; posterior margin of S6 bidentate; pygidial plate slightly convex, elongate; lateral margins of pygidial plate weakly converging anteriorly, carinate on posterior half.
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 anterior half 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; T1 posterior half and T2 disc with small confluent punctures; T2 laterally and S1–2 with large dense punctures; T3–6 and S3–6 with small dense punctures; pygidial plate finely longitudinally rugose on anterior 2/3, smooth posteriorly.
Type material. 1♀. Holotype ♀: Indonesia: EAST JAVA: G[unung]. Raoeng [= Mt. Raung], “Bajoekidoel”, 450–700 m, XI.1931, H. Lucht leg. [RMNH].
Distribution. Indonesia: East Java.
Etymology. With special gratitude to Frederique Bakker, this species is named for the Naturalis Biodiversity Center in Leiden, the Netherlands. They have graciously facilitated the study of roughly 10,000 mutillid specimens from around the World by the authors.
Remarks. This new species is similar to A. yotoi sp. nov. by having the mandible wide and the T2 disc broadly depressed, but differs from that species by having the antenna and legs darker and the propodeum with distinct longitudinal carina. Andreimyrme naturalis sp. nov. has a small sharp tubercle in the scutellar area, at the anterior edge of the longitudinal propodeal carina, which resembles a small scale.
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 15-16, DOI: 10.11646/zootaxa.5061.1.1, http://zenodo.org/record/5642158