Exetastes tullu, Reshchikov & Alvarado, 2022

Reshchikov, Alexey & Alvarado, Mabel, 2022, Two new species of Exetastes (Hymenoptera: Ichneumonidae: Banchinae) from the Peruvian Andes, European Journal of Taxonomy 806 (1), pp. 52-63 : 58-60

publication ID

https://doi.org/ 10.5852/ejt.2022.806.1701

publication LSID

lsid:zoobank.org:pub:F1739941-A6BD-4330-88C1-BC6F9392D591

DOI

https://doi.org/10.5281/zenodo.6384520

persistent identifier

https://treatment.plazi.org/id/22591EEF-C304-4EDD-A772-5D83166F7F16

taxon LSID

lsid:zoobank.org:act:22591EEF-C304-4EDD-A772-5D83166F7F16

treatment provided by

Felipe

scientific name

Exetastes tullu
status

sp. nov.

Exetastes tullu sp. nov.

urn:lsid:zoobank.org:act:22591EEF-C304-4EDD-A772-5D83166F7F16

Figs 3 View Fig , 4A View Fig

Etymology

The specific epithet ʻ tullu ʼ means ʻthinʼ in Quechua, noun in apposition.

Type material

Holotype PERU • ♀; Cusco Region, Wayquecha Biological Station ; 13.175° S, 71.581° W; 2692 m a.s.l.; 22 Oct. 2007; Malaise trap; C. Castillo leg.; MUSM. GoogleMaps

Paratype PERU • 1 ♀; same collection data as for holotype; MUSM GoogleMaps .

Description

Female (holotype)

MEASUREMENT. Fore wing length 8.2 mm.

HEAD. Clypeus, in profile, basally weakly convex, subapically slightly concave; 1.5 times as wide as high. Mandible with upper mandibular tooth as large as lower tooth, without subdivision; basally coriaceous and punctate, smooth on apical half. Malar space 0.6 times basal width of mandible. Face ( Fig. 3C View Fig ), frons, vertex ( Fig. 3B View Fig ), and gena finely granulate, matt, finely and somewhat indistinctly punctate. Face with weak median convexity. Gena, in lateral view, 0.4 times as long as compound eye. Antenna setaceous with 52 flagellomeres (paratype with 50 flagellomeres); ratio of length vs width from second to fourth flagellomeres: 3.6:3.0:2.9, ratio of those around 0.7 of way along flagellum: 1.5, subapical flagellomere: 1.2. Ocellar-ocular distance 1.9 times maximum diameter of lateral ocellus ( Fig. 3B View Fig ).

MESOSOMA. Mesosoma entirely granulate, matt, mostly finely and densely punctate. Epomia absent. Notaulus faint ( Fig. 3B View Fig ). Scutellum, in profile, pyramidal ( Fig. 4A View Fig ). Subalar prominence strongly raised, sharply rounded. Upper half of metapleuron convex, lower half concave, upper margin scrobiculate, with submetapleural carina moderately raised extending about 0.7 of length of pleuron. Propodeum ( Fig. 3D View Fig ) granulate, matt, mostly finely and densely punctate; pleural carina present anteriorly, absent posterior to spiracle. Fore tibia slender, unspecialized. Hind femur 7.9 times as long as its maximum width in lateral view. Tarsal claw simple. Fore wing with 3rs-m meeting Rs without joining 2rs-m, enclosing an areolet that is narrowly truncate above; abscissa of M between 2rs-m and 2m-cu shorter than abscissa of M between 2m-cu and 3rs-m; cu-a distal to base of Rs and M.

METASOMA. T1 ( Fig. 3B View Fig ) 4.1 times as long as posteriorly wide; with spiracle positioned in anterior 0.46; granulate, shiny, mostly finely and densely punctate. T2 1.8 times as long as posteriorly wide, granulate, shiny, mostly finely and densely punctate. Ovipositor sheath elongate and slim, with transverse striation on outer surface. Ovipositor ( Fig. 3A, E View Fig ) projecting beyond apex of subgenital plate by 1.0 times length of hind tibia; stout, compressed, decurved, with subapical notch.

COLOR. Coloration black ( Fig. 3A View Fig ), except for following which are marked with yellow: lower half of clypeus, mandibles (except teeth), facial orbit ( Fig. 3C View Fig ) reaching upwards to lower part of frons, malar space, anterior margin of pronotum, along with its posterior margin dorsally and posterodorsally ( Fig. 3D View Fig ), propleuron, mesoscutum anterolaterally, transverse median stripe on scutellum, anterior edge of mesopleuron, a mark at end of epicnemial carina, subalar prominence, mesepisternum, ventral part of fore coxa, fore and mid femur and tibia ventrally, mid coxa ventrodistally, anterior third of T1 ( Fig. 3B View Fig ), lateral edges and distal edge, T2–4, and sternite 1–5; and following parts which are brown ( Figs. 3A, 3E View Fig ): fore and mid femur dorsally and extreme, fore and mid femur, tibia dorsally, hind femur, hind tibia, tarsomere, and ovipositor.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

SuperFamily

Ichneumonoidea

Family

Ichneumonidae

SubFamily

Banchinae

Tribe

Banchini

Genus

Exetastes

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