Hymenoepimecis longilobus Padua & Saeaeksjaervi, 2020

Padua, Diego Galvao de, Saeaeksjaervi, Ilari Eerikki, Monteiro, Ricardo Ferreira & Oliveira, Marcio Luiz de, 2020, Seven new species of spider-attacking Hymenoepimecis Viereck (Hymenoptera, Ichneumonidae, Pimplinae) from Ecuador, French Guiana, and Peru, with an identification key to the world species, ZooKeys 935, pp. 57-92 : 57

publication ID	https://dx.doi.org/10.3897/zookeys.935.50492
publication LSID	lsid:zoobank.org:pub:3540FBBB-2B87-4908-A2EF-017E67FE5604
persistent identifier	https://treatment.plazi.org/id/8FFC81FF-D55A-4C66-A274-8EA5EAA3164F
taxon LSID	lsid:zoobank.org:act:8FFC81FF-D55A-4C66-A274-8EA5EAA3164F
treatment provided by	ZooKeys by Pensoft
scientific name	Hymenoepimecis longilobus Padua & Saeaeksjaervi
status	sp. nov.

Treatment

Hymenoepimecis longilobus Padua & Saeaeksjaervi sp. nov. Figures 8 View Figures 1–15 , 23 View Figures 16–30 , 38 View Figures 31–45 , 53 View Figures 46–60 , 68 View Figures 67–71 , 83 View Figures 76–90 , 102 View Figures 97–102

Diagnosis.

This species can be distinguished from all other Hymenoepimecis by the combination of the following characters: 1) fore wing hyaline yellowish, with two blackish bands; 2) pronotum orange (Peruvian specimens with anterior margin of the pronotum blackish); 3) female with tarsal claw with a longitudinally elongated lobe, and with apex overtaking the lobe; 4) female with ovipositor 1.5-1.6 times as long as hind tibia.

Description.

Female. Body approx. [15.0] 12.0-15.0 mm; face [1.1] 1.0-1.1 times as broad as high, smooth, slightly convex with few spaced bristles; head in dorsal view, with gena strongly narrowed behind eyes; posterior ocelli separated from eyes by approx. [0.9] 0.8-1.0 times its own maximum diameter; occipital carina projected and curved upwards dorsally. Pronotum long, smooth and polished, with distance from tegula to head greater than approx. [0.7] 0.6-0.7 times distance from tegula to hind margin of propodeum, and in anterior part with opening pocket-like structure not reduced longitudinally; mesoscutum smooth and polished; scutellum, in profile, convex; mesopleuron smooth and polished, with anterodorsal and posterodorsal parts bearing sparse, fine setiferous punctures; metapleuron smooth and polished, rather uniformly covered with sparse, fine setiferous punctures; propodeum smooth, polished, with sparse, fine setiferous punctures and with lateral longitudinal carina present only posteriorly. Fore wing approx. [13.0] 9.0-13.0 mm; cu-a interstitial to the base of Rs&M; 2rs-m [0.55] 0.5-0.6 times as long as abscissa of M between 2rs-m and 2m-cu; hind wing with abscissa of Cu1 meeting cu-a equidistant between M and 1A. Hind leg with tibia + tarsus [0.6] times the fore wing length; tarsal claw with longitudinally elongated lobe, with apex of claw overtaking the lobe. Metasoma slender; tergite I [1.6] times as long as posteriorly width, centrally quite strongly convex with lateral carinae present only at extreme anterior end flanking the anterior concavity; sternite I with a low, rounded swelling posteriorly; tergite II approx. [1.2] 1.2-1.4 times as long as posteriorly width; tergites III and IV approx. [1.1] 1.1-1.3 times as long as posteriorly width; ovipositor approx. [1.6] 1.5-1.6 times as long as hind tibia.

Colour. Head black; clypeus black with apex yellowish; mouthparts yellowish, with apex mandible black; antenna brownish. Mesosoma orange. Fore and mid leg orange, the hind entirely blackish brown except base of coxa orange. Fore wing hyaline yellowish, with apex blackish and with a blackish preapical band; pterostigma with basal half black and apical half yellow; hind wing with slightly blackish band in median part. Metasoma orange, with posterior margin black in tergite V and tergites VI+ black; ovipositor and sheath brownish.

Male.

(Fig. 102 View Figures 97–102 ). Similar to female in structure and colouration, but with hind coxa orange body with 10.5-12.0 mm; face 1.0 times as broad as high; posterior ocelli separated from eyes by 0.8-1.0 times its own maximum diameter. Fore wing 8.0-10.0 mm; 2rs-m 0.3-0.5 times as long as abscissa of M between 2rs-m and 2m-cu. Tarsal claw simple. Metasoma slender; tergite I 1.6-1.7 times as long as posteriorly width; tergite II 1.2-1.5 times as long as posteriorly width; tergites III and IV 1.0-1.3 times as long as posteriorly width.

Variation.

The Peruvian specimens have anterior margin of pronotum blackish. Some specimens have tergite V entirely black or black with anterior margin orange; hind coxa orange with basal part blackish.

Distribution.

Ecuador**, French Guiana* and Peru* (Fig. 110 View Figures 107–112 ).

Biological notes.

Host unknown.

Etymology.

The specific name refers the longitudinally elongated lobe in tarsal claw of the females.

Type material.

Holotype ♀. French Guiana, M. de Kaw, Patawa, ix.2003, (J. Cerda leg.), ZMUT. Paratypes: French Guiana: idem holotype, but vii.2003, 1♀, ZMUT; idem, but xi.2001, 1♂ and 1♀, ZMUT; idem, but xii.2001, 1♀, ZMUT; idem, but ii.2003 (O. Morvan leg.), 1♂, ZMUT. Ecuador: Dept. Orellana, Onkonegare, 00°39'25,7"S, 76°27'10,8"W, a.s.l.: 216 m., 23.vi.1996, Fogging, Lot #1616 (T.L. Erwin leg.), 1♂, ZMUT. Peru: Dept. of Loreto, Iquitos area, Allpahuayo, 22.ii-7.iii.2000, white sand, Malaise trap ( Sääksjärvi et al. leg.), APHI, E1/2, 1♀, ZMUT; idem, but 14.ix-4.x.2000, clay, APHI, H1/13, 1♀, ZMUT; idem, but G1(15), 8.xi.2000, 1♀, ZMUT.

Comments.

Hymenoepimecis longilobus sp. nov. closely resembles H. neotropica (Brues & Richardson, 1913), Hymenoepimecis ecuatoriana sp. nov. and H. duckensis Pádua & Onody, 2015 mainly by having the fore wing yellowish hyaline with two blackish bands and metasoma orange with last tergites black. It differs from all of these species by having tarsal claw with a longitudinally elongated lobe (tarsal claw with a preapical tooth in H. neotropica and a more or less square lobe in H. ecuatoriana sp. nov. and H. duckensis ).