Hymenoepimecis dolichocarinata 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/66F48B80-3F42-4EDB-8B3B-DA1D9DB4ABD0
taxon LSID	lsid:zoobank.org:act:66F48B80-3F42-4EDB-8B3B-DA1D9DB4ABD0
treatment provided by	ZooKeys by Pensoft
scientific name	Hymenoepimecis dolichocarinata Padua & Saeaeksjaervi
status	sp. nov.

Treatment

Hymenoepimecis dolichocarinata Padua & Saeaeksjaervi sp. nov. Figures 4 View Figures 1–15 , 19 View Figures 16–30 , 34 View Figures 31–45 , 49 View Figures 46–60 , 64 View Figures 61–66 , 79 View Figures 76–90 , 99 View Figures 97–102

Diagnosis.

This species can be distinguished from all other Hymenoepimecis by the combination of the following characters: 1) epicnemial carina present ventrally, extending to the level of the lower corner of the pronotum laterally; 2) wings slightly yellowish hyaline; 3) margin of the gena flat behind the eyes; 4) metasoma orange, with posterior margins of tergites II-IV narrowly black, tergites V+ black.

Description.

Female. Body approx. [13.0] 11.5-13.0 mm; face [1.0] 0.9-1.0 times as broad as high, smooth, slightly convex with few spaced bristles; head in dorsal view, with margin of gena flat behind eyes; posterior ocelli separated from eyes by approx. [0.6] 0.5-0.6 times its own maximum diameter; occipital carina little projected, slightly curved upwards in the mediodorsal part. Pronotum more or less long, smooth and polished, with distance from tegula to head greater than [0.6] 0.5-0.6 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; epicnemial carina present ventrally, extending until reaching the level of lower corner of pronotum laterally; metapleuron smooth and polished, rather uniformly covered with sparse, fine setiferous punctures. Fore wing approx. [10.0] 9.0-11.0 mm; cu-a interstitial to the base Rs&M; 2rs-m approx. [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] 0.55-0.6 times the fore wing length; tarsal claw with more or less square lobe, with apex slightly overtaking the lobe. Metasoma slender; tergite I [1.6] 1.5-1.6 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 [1.4] 1.3-1.4 times as long as posteriorly width; tergites III and IV approx. [1.5] 1.2-1.5 times as long as posteriorly width; ovipositor [1.45] 1.3-1.5 times as long as hind tibia.

Colour. Head black; clypeus yellowish, with base slightly black; mouthparts yellowish, with apex mandible black; antenna brownish. Mesosoma orange. Fore and mid leg orange, the hind leg orange, with femur, tibia, and tarsus brownish. Wings slightly yellowish hyaline; pterostigma brown. Metasoma orange, with tergites II-V with lateral marks on posterior margins black and tergites V+ brownish; ovipositor and sheath brown.

Male.

(Fig. 99 View Figures 97–102 ). Similar to female in structure and colouration, but with body with 5.0-7.0 mm; face 0.9-1.1 times as broad as high; head in dorsal view, with margin of gena short, slightly convex behind eyes; posterior ocelli separated from eyes by approx. 0.8 times its own maximum diameter; occipital carina not projected. Fore wing 4.0-6.0 mm; cu-a more or less interstitial to the base Rs&M; 2rs-m 0.3-0.4 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 approx. 1.3 times as long as posteriorly width; tergites III and IV 1.2 times as long as posteriorly width.

Variation.

Tergite V black with anterior margin orange or apical half orange and basal half-black. Three females from French Guiana ( Saül city) presented margin of gena slightly convex. We think they are conspecific, but we are not treating them as paratypes.

Distribution.

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

Biological notes.

Host unknown.

Etymology.

The specific name refers to the long epicnemial carina, reaching the level of the lower corner of the pronotum laterally.

Type material.

Holotype ♀. Peru, Dept. of Loreto, Iquitos area, Allpahuayo, APHI, 29.i-20.ii.2000, Malaise trap I1, (I.E. Sääksjärvi et al. leg.), MUSM. Paratypes: Peru: idem holotype, 1♀, ZMUT; Dept. of Loreto, Iquitos area, Allpahuayo, 20.ii-8.iii.2000, white sand, Malaise trap ( Sääksjärvi et al. leg.), APHI, G2/2, 1♀, MUSM; idem, but 30°57'84"S, 73°25'39"W, 5-11.xii.2011 ( Gómez & Sääksjärvi leg.), 1♀, ZMUT; idem, but H2 (16), 21.xii.2000, 1♀, ZMUT; idem, but J1, 1.xii.2000, 1♀, ZMUT. Ecuador: Dept. Orellana, Onkonegare, 00°39'25,7"S, 76°27'10,8"W, a.s.l.: 216 m., 08.ii.1996, Fogging (T.L. Erwin leg.), Lot #1473, 1♂, ZMUT; idem, but 30.ix.1996, Lot #1677, 1♂, ZMUT.

Other material.

French Guiana, Saül, 27.xii or viii.2011 [sic], Malaise trap (without collector), 1♀, ZMUT; idem, but 7.v.2012, 1♀, ZMUT; idem, but 13.xii.2011, 1♀, ZMUT.

Comments.

Hymenoepimecis dolichocarinata sp. nov. closely resembles H. japi Sobczak, Loffredo, Penteado-Dias & Gonzaga, 2009, H. sooretama Sobczak, Loffredo, Penteado-Dias & Gonzaga, 2009 and H. manauara Pádua & Oliveira mainly by having weak black lateral marks on posterior margins of tergites II-V and by having sternite I with a low, rounded swelling posteriorly, but it differs from them mainly by having epicnemial carina present (absent in all other mentioned species).