Evagetes truncantennus Dong & Ma, 2024
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publication ID |
https://doi.org/10.1590/S1984-4689.v41.e24012 |
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persistent identifier |
https://treatment.plazi.org/id/03C387F1-1279-FFA4-FCE7-FB6FFBD1E74E |
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treatment provided by |
Felipe |
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scientific name |
Evagetes truncantennus Dong & Ma |
| status |
sp. nov. |
Evagetes truncantennus Dong & Ma , sp. nov.
Fig. 1 View Figure 1
https://zoobank.org/ 04816B99-AD06-43A5-A5BC-74B367807FFF
Diagnosis. The new species clearly differs from congeners by the following characteristics: propodeum with sharply defined anterior horizontal and posterior vertical surfaces ( Fig. 1D View Figure 1 ); F10 truncated apically ( Fig. 1F View Figure 1 ); narrowest malar space 0.75X pedicel width ( Fig. 1A View Figure 1 ); median length of metapostnotum 0.18X median length of metanotum ( Fig. 1D View Figure 1 ); T1 except basal area, T2 and basal T3 with inconspicuous reddish dark ( Fig. 1H View Figure 1 ); pro– and mesothorax curved in lateral view ( Fig. 1H View Figure 1 ).
Description. Female. Body length 8.2 mm, fore wing 6.2 mm. Colour: body black ( Fig. 1H View Figure 1 ); mandible medially and subapical margin of clypeus orange-yellow, outer edge of labrum yellowish-brown, apical of mandible reddish dark to brownish dark; apical margin of clypeus brown ( Fig. 1A View Figure 1 ); T1 except basal area, T2 and basal T3 with inconspicuous reddish dark ( Fig. 1H View Figure 1 ); forewing medially light brown, infuscate with darker brownish apical band, hindwing mostly hyaline but with brownish apical band ( Fig. 1G View Figure 1 ). Mandible medially, clypeus, frons, gena, pronotum, propleuron, apical of mesoscutum, scutellum, mesopleuron, metanotum, metapostnotum, metapleuron, propodeum except basal area, and coxa covered with greyish-silvery to golden brown pubescence ( Fig. 1A–E, H View Figure 1 ). Apical margin of labrum, mandible and vertex with several irregular in length brown setae ( Fig. 1A View Figure 1 ). Gena with denser and longer greyish-silvery setae; sides of propodeum with sparse, erect, short and greyish-silvery setae. Propleuron, coxa, femur with erect, black and long setae, metasoma except T1-2 with denser erect black and long setae ( Fig. 1E, H View Figure 1 ).
Head. In frontal view, head width 1.25X its height. Mandible with two teeth. Labrum flat with weakly emargination or even straight anterior border. Clypeus wide horizontally, medially slightly convex (lateral view), almost flat and with sparse punctures, anterior margin truncates, its width 2.86X its length ( Fig. 1A View Figure 1 ). Narrowest malar space 0.75X pedicel width. Frons evenly convex, frontal median line complete and fine, extending anterior ocellus. Inner orbits nearly parallel below, emarginate at middle and slightly convergent above, UID length 0.89X LID ( Fig. 1A View Figure 1 ). Ratio median length of gena to median length of eye (lateral view) 0.34X (lateral view). Ocelli approximately in right triangle, POD: OOD=1: 1, vertex flat ( Fig. 1B View Figure 1 ). Relation of scape, pedicel, F1 and F2= 20: 6: 19: 17; flagellomere 1 length 2.5X its width; F10 truncate apically ( Fig. 1F View Figure 1 ).
Mesosoma. Pro- and mesothorax curved in lateral view, pronotum length 0.42X its width, arcuate posteriorly ( Fig. 1C View Figure 1 ). Mesoscutum with parapsidal line, from apical to 1/2 mesoscutum. Scutellum and metanotum strongly convex in middle. Metapostnotum depressed medially with transversal striae, median length of metapostnotum 0.18X metanotum median length. Propodeum with sharply defined anterior horizontal and posterior vertical surfaces, its median length 0.76X maximum width ( Fig. 1D View Figure 1 ).
Legs. Foreleg tarsal comb flattened towards apex, 1 st tarsomere with three spines, 2 nd tarsomere with two, 3 rd tarsomere with one, tarsomeres 4 and 5 without spines. Apical spine of 1 st tarsomere slightly longer than 2 nd tarsomere, apical spine of 2 nd tarsomere slightly longer than 3 rd tarsomere ( Fig. 1I View Figure 1 ). Longer spur of hind tibia 0.75x tarsomere 1. Claws symmetrical with additional inner tooth ( Fig. 1J View Figure 1 ).
Wings. Forewing with three submarginal cells, SMC2 nearly rectangle, SMC3 trapezoid, SMC3 size apparently 1/2 SMC2; 1r-rs vein curved, 2rs-m vein straight. Pterostigma small, slightly shorter than first abscissa of R. First recurrent ending at middle of SMC2, second recurrent ending at middle of SMC3. Length of fore wing marginal cell longer than SMC2 and SMC3 combined. Hind wing M+CuA vein forks after intersection of cu-a and M+CuA ( Fig. 1G View Figure 1 ).
Metasoma. Metasoma subfusiform, without petiole ( Fig. 1H View Figure 1 ).
Type material. Holotype female. CHINA: Xinjiang, Yili state, Yining Country, Samuyuzi Town Yellow plate1, 43°76’N 81°91’, 771 m, 6.VII.2023, coll. Zhi-zhi Liu ( YNAU).
Etymology. The specific name truncantennus : truncoriginates from the Latin ‘truncate’ (= truncate) and ‘antennus’ (originates from the Latin ‘antenn-’ (= antenna), refers to the apical antenna is truncate.
Distribution. China (Xinjiang).
Remarks. The species resembles E. transbaicalicus Lelej, 1995 in having setae over the body, in the shape of the labrum, mesothorax and wings, but differs in the apical antennae, profile of pronotum, length of metapostnotum and posterior propodeum.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.