Streblocera (Eutanycerus) quangbinhensis Long, 2020
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publication ID |
https://doi.org/ 10.11646/zootaxa.4767.3.2 |
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publication LSID |
urn:lsid:zoobank.org:pub:91221D05-77DA-4883-A301-96607B86302C |
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DOI |
https://doi.org/10.5281/zenodo.3797098 |
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persistent identifier |
https://treatment.plazi.org/id/960887D4-6936-FF81-FF06-F55EFD681C7F |
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treatment provided by |
Plazi |
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scientific name |
Streblocera (Eutanycerus) quangbinhensis Long |
| status |
sp. nov. |
Streblocera (Eutanycerus) quangbinhensis Long , sp. n.
( Figs 12–22 View FIGURE 12 View FIGURES 13–22 )
Material examined. Holotype ♀, “Euph. 159 ” ( IEBR), NC Vietnam: Quang Binh, Minh Hoa, Cha Lo , forest, 18.iv.1998, KDLong . Paratypes 2 ♀, “Euph. 158 ” ( IEBR), locality as holotype; “Euph. 201 ” ( IEBR), NC Vietnam: Ha Tinh, Huong Son, Rao An, forest path, 200m, 22.iv.1998, KDLong.
Diagnosis. Antenna 25 antennomeres; scapus long, evenly curved, with tooth-shaped horn in basal 0.2 of scapus ( Fig. 19 View FIGURES 13–22 ); length of scapus 9.4 × its maximum width, and 2.3 × of head height (in dorsal view); tentorial pits at lower level of eyes ( Fig. 14 View FIGURES 13–22 ); malar space 1.3 × as long as basal width of mandible; length of mesosoma 1.8 × as long as its height; propodeum with rather long basal carina and areola-shaped median area; first metasomal not narrowed behind spiracle; length of first tergite 1.6 × its apical width; apical width of first tergite 3.3 × its minimum width.
This new species is close to both S. tuyenquangnesis sp. n. and S. pila Belokobylskij , differences between these species are given in the key. The new species can be distinguished by shorter first metasomal tergite, 1.6 × its apical width (2.3–2.5 × its apical width in S. tuyenquangnesis and S. pila ).
Description. Holotype, ♀; body length 4.5 mm, fore wing length 4.2 mm, ovipositor sheath 0.8 mm ( Fig. 12 View FIGURE 12 ).
Head. Antenna with 25 antennomeres; scapus long, slightly curved medially, length of scapus 9.4 × its maximum width (75: 8), with tooth-shaped horn in basal 0.2 of scapus (16: 75); scapus 2.3 × of head height (75: 33); third antennomere 1.3 × fourth (8: 6); second-seventh flagellomeres serrate ventrally ( Fig. 18 View FIGURES 13–22 ); length from eighth flagellomere to apex of antenna 0.9 × scapus (71: 75); in dorsal view, width of head 1.5 × its median length (49: 33), 1.4 × width of mesoscutum (without tegulae) (49: 34); temple roundly narrowed behind eye; eye 2.25 × as long as broad; length of eye 1.8 × as long as temple (18: 10); ocelli small, POL: OD: OOL = 5: 3: 11 ( Fig. 13 View FIGURES 13–22 ); in lateral view, transverse diameter of eye as long as temple (14: 14); in frontal view, diameter of antennal socket 1.1 × distance between sockets (9: 8); face width subequal to length of face and clypeus combined (28: 29), and 1.5 × height of eye (28: 19); clypeus margin straight; malar space 1.3 × as long as basal width of mandible (9: 7), and 0.5 × as long as eye height (9: 19); distance between tentorial pits 1.2 × distance from pit to eye margin (11: 9); face densely punctate ( Fig. 14 View FIGURES 13–22 ); frons punctate laterally, with median sparse striae ( Fig. 13 View FIGURES 13–22 ); vertex and temple almost smooth ( Figs 13, 15 View FIGURES 13–22 ).
Mesosoma. Length of mesosoma 1.8 × as long as its height (83: 46); notauli deep, sparsely crenulated anteriorly, widened posteriorly and largely rugose ( Fig. 16 View FIGURES 13–22 ), median lobe of mesoscutum without median depression; prescutellar sulcus rather wide, rugose, with one carina, and 0.7 × as long as scutellum (6: 9) ( Fig. 16 View FIGURES 13–22 ); lobes of mesoscutum and scutellum sparsely punctate; subalar depression rugose ( Fig. 17 View FIGURES 13–22 ); pronotal side crenulated anteriorly, rugose ventrally and posteriorly ( Fig. 17 View FIGURES 13–22 ); precoxal sulcus deep and wide, crenulate; mesopleuron smooth medially, rugose ventrally ( Fig. 17 View FIGURES 13–22 ); metapleuron rugose; propodeum with rather long basal carina ( Fig. 21 View FIGURES 13–22 ) and areola-shaped median area, punctate basally, largely rugose apically.
20 First metasomal tergite 21 Propodeum 22 Fore wing.
Wings. Length of fore wing 2.8 × its width (127: 45); length of pterostigma 4.0 × its width (40: 10), and 1.5 × vein 1-R1 (40: 26) ( Fig. 22 View FIGURES 13–22 ); vein r arising just behind middle of pterostigma, 0.1 × as long as width of pterostigma (4: 40), and 0.15 × vein 1-R1 (4: 26); vein 1-CU1 short and thick, nearly quadrate; cu-a 0.3 × vein 2-CU1 (5: 17) ( Fig. 22 View FIGURES 13–22 ); length of hind wing 4.2 × its width (122: 29); vein 1-M: 1r-m: 2-SC+R = 5: 8: 8.
Legs. Length of hind femur, tibia and basitarsus 7.1, 16.25 and 14.0 × as long as their width, respectively; hind basitarsus 0.9 × hind tibia (58: 65); hind basitarsus 0.4 × hind tibia (28: 65), and as long as second-fifth tarsus (28: 28); fourth hind tarsus 0.7 × fifth tarsus without pretarsus (5:7).
Metasoma. First metasomal tergite not narrowed behind spiracle; length of first tergite 1.6 × its apical width (32: 20); apical width of first tergite 3.3 × its minimum width (20: 6); ovipositor sheath 0.2 × fore wing (8: 45), and 0.9 × first tergite (30: 32); first tergite almost smooth basally and medially, striate apically ( Fig. 20 View FIGURES 13–22 ); the rest tergites highly smooth.
Colour. Body yellow, except first metasomal tergite and ovipositor sheath yellowish-brown; eyes brownishgrey; wing veins yellow; wing membrane hyaline.
Male. Unknown.
Host: Unknown.
Etymology. Named after type locality, Quang Binh Province, North Central Vietnam.
Variation. Paratypes, females, 23 antennomeres, body length 4.0– 4.2 mm, fore wing 4.0 mm.
Distribution. NC Vietnam: Ha Tinh, Quang Binh.
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.