Tamdaona brevizona van Achterberg, 2020
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publication ID |
https://doi.org/ 10.11646/zootaxa.4778.3.3 |
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publication LSID |
lsid:zoobank.org:pub:6D747D40-ACB2-473D-B41C-2DA04B10F225 |
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DOI |
https://doi.org/10.5281/zenodo.3848261 |
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persistent identifier |
https://treatment.plazi.org/id/03911A3F-FF9D-264A-91A3-FD66FA2FFBD2 |
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treatment provided by |
Plazi |
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scientific name |
Tamdaona brevizona van Achterberg |
| status |
sp. nov. |
Tamdaona brevizona van Achterberg , sp. n.
Figs 65–78 View FIGURES 65, 66 View FIGURES 67–78 )
Type material. Holotype, ♀ ( RMNH), “ Vietnam: Ninh Thân , Núi Chúa N.P., dry south part, 100–180 m, Mal[aise] traps], 22–29.v.2007, C. v. Achterberg & R. de Vries, RMNH’07” . Paratypes: 1 ♀ ( IEBR), with same data as ho- lotype ; 1 ♀ ( RMNH), “ S. Vietnam: Dak Lak, Chu Yang Sin N.P., n[ea] r dam , c. 500 m, c. 500 m, Mal[aise] traps], 3–9.vi.2007, C. v. Achterberg & R. de Vries, RMNH’07” .
Description. Holotype, ♀, length of fore wing 1.8 mm, and of body 2.2 mm.
Diagnosis. Antenna of ♀ with 20 or 21 antennomeres ( Fig. 65 View FIGURES 65, 66 ); frons without medio-longitudinal depression ( Fig. 74 View FIGURES 67–78 ); rim of mesoscutum dark brown near tegulae ( Fig. 70 View FIGURES 67–78 ); notauli rather wide anteriorly ( Fig. 70 View FIGURES 67–78 ); mesosoma ventrally and more or less posteriorly yellowish brown ( Fig. 69 View FIGURES 67–78 ); propodeum gradually lowered posteriorly ( Fig. 65 View FIGURES 65, 66 ); vein 3-SR of fore wing 1.1–1.2 × as long as vein r ( Fig. 67 View FIGURES 67–78 ); vein 1-R1 1.1–1.3 × longer than pterostigma ( Fig. 67 View FIGURES 67–78 ); second submarginal cell of fore wing distinctly narrowed anteriorly ( Figs 65 View FIGURES 65, 66 , 67 View FIGURES 67–78 ); legs pale yellowish; basal area of second metasomal tergite transverse and finely reticulate ( Fig. 71 View FIGURES 67–78 ), narrow and medially 0.10–0.15 × as long as wide anteriorly, hardly or not protruding medio-posteriorly ( Fig. 71 View FIGURES 67–78 ); second tergite rather transverse and 1.2–1.3 × as long as third tergite ( Fig. 71 View FIGURES 67–78 ); second metasomal suture rather wide medially ( Fig. 71 View FIGURES 67–78 ); fourth and fifth tergites largely smooth ( Figs 71 View FIGURES 67–78 ); setose part of ovipositor sheath 0.33–0.38 × as long as fore wing ( Fig. 65 View FIGURES 65, 66 ).
Head. Antenna with 21 antennomeres, scapus longer dorsally than ventrally ( Fig. 65 View FIGURES 65, 66 ), length of third antennomere 1.2 × fourth antennomere, third, fourth and penultimate antennomeres 2.7, 2.3 and 2.0 × as long as wide, respectively ( Figs 76, 77 View FIGURES 67–78 ); maxillary and labial palpi with 6 and 4 segments, respectively; length of maxillary palp equal to height of head; temple smooth; hypostomal flange narrow; eye 4.0 × as long as temple in dorsal view; temples directly narrowed behind eyes ( Fig. 74 View FIGURES 67–78 ); OOL:diameter of posterior ocellus:POL = 30:14:14; vertex and frons largely smooth and shiny, but near eye superficially micro-sculptured and vertex distinctly setose; face remotely punctulate, shiny and convex ( Fig. 73 View FIGURES 67–78 ); clypeus truncate medially and ventral rim thin, medially moderately convex and with some punctures; hypoclypeal depression 0.4 × as wide as face, medium-sized and rather shallow; malar suture absent; length of malar space 1.2 × basal width of mandible; mandible rather flat medially and smooth, strongly narrowed and twisted apically.
Mesosoma. Length of mesosoma 1.5 × its height; pronotum partly horizontal anteriorly and with large slit-like pronope ( Fig. 70 View FIGURES 67–78 ); side of pronotum smooth, but with some crenulae anteriorly ( Fig. 69 View FIGURES 67–78 ); mesopleuron convex, shiny and smooth; precoxal sulcus present as short oblique groove medially with some fine crenulae; episternal scrobe present, linear; pleural sulcus smooth except for some indistinct micro-crenulation ventrally; mesosternal suture deep, narrow and micro-crenulate; notauli complete, smooth, moderately wide and distinctly impressed ( Fig. 70 View FIGURES 67–78 ); mesoscutum convex, strongly shiny, and largely smooth, setose except middle of lateral lobes and medio-posteriorly with longitudinal groove between notauli; scutellar sulcus narrowed laterally and with one long crenula and some micro-crenulation ( Fig. 70 View FIGURES 67–78 ); scutellum wide, distinctly convex, setose, largely smooth and shiny; metapleuron largely smooth; propodeum evenly convex, shiny and largely smooth but dorsally micro-sculptured and some rugulae ( Fig. 71 View FIGURES 67–78 ), only posteriorly with pair of short carina and anterior half with medio-longitudinal carina.
Wings. Fore wing: pterostigma triangular ( Fig. 67 View FIGURES 67–78 ); second submarginal cell distinctly narrowed anteriorly ( Fig. 67 View FIGURES 67–78 ); 1-SR much longer than wide; 1-SR+M present anteriorly, but very narrow; 1-R1 1.3 × longer than pterostigma; vein r emitted from middle of pterostigma and slender; r:3-SR:SR1:2-SR = 10:11:64:20; vein SR1 nearly straight; m-cu antefurcal; 1-CU1 widened, about as long as cu-a; 1-CU1:2-CU1 = 1:7; CU1b complete; basal and subbasal cells of fore wing similarly setose as other cells. Hind wing: M+CU:1-M:1r-m = 21:40:13; basal and subbasal cells less densely setose than other cells; m-cu faintly indicated.
Legs. Hind coxa smooth; tarsal claws medium-sized and simple ( Fig. 78 View FIGURES 67–78 ); length of femur, tibia and basitarsus of hind leg 3.6, 8.8 and 5.1 × as long as their maximum width; hind tibial spurs 0.35 × as long as basitarsus.
Metasoma. First tergite 0.9 × longer than its apical width, gradually widened apically, convex, densely rugulose, shiny, dorsope absent, its dorsal carinae coarsely developed basally, converging, posteriorly weakly developed and merging in sculpture ( Fig. 71 View FIGURES 67–78 ); first tergite laterally with deep elliptical laterope in smooth glymma; second tergite and most of third tergite densely reticulate-rugulose (including basal area), following tergites largely smooth ( Fig. 71 View FIGURES 67–78 ); basal area of second tergite transverse and finely reticulate, narrow triangular and medially 0.13 × as long as combined second and third tergites; second metasomal suture and antero-lateral grooves of third tergite distinct and crenulate ( Fig. 71 View FIGURES 67–78 ); epipleura of second and third tergites semi-transparent; ovipositor sheath subparallel-sided and apically pointed, its setose part 0.38 × as long as fore wing, 2.2 × first tergite and 4.0 × hind basitarsus; ovipositor slightly compressed and hardly widened subapically, with small subapical nodus.
Colour. Yellowish brown; palpi, mouth parts and metasoma ventrally (except apically) white; scapus largely, pedicellus ventrally, tegulae and legs (but telotarsi dark brown) pale yellowish; remainder of antenna, stemmaticum, narrow stripe in front of tegulae, metanotum, propodeum, first tergite (except posteriorly), second tergite (except laterally) and third tergite medio-anteriorly dark brown or brown; pterostigma and most veins of fore wing (except basally) brown; wing membrane subhyaline.
Variation. Length of fore wing 1.7–1.9 mm and of body 2.2–2.4 mm; antennal segments of ♀ 20(1), 21(1); se- tose part of ovipositor sheath 0.33–0.38 × as long as fore wing; propodeum brown or dark brown; fourth metasomal tergite smooth or faintly micro-sculptured.
Etymology. Named after the comparatively short basal area of the second tergite: “brevis” is Latin for “short” and “zona” for “area”.
Distribution. Oriental: Vietnam. Collected in coastal open forest at 100–180 m and lowland forest at 500 m.
| RMNH |
National Museum of Natural History, Naturalis |
| R |
Departamento de Geologia, Universidad de Chile |
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.