Dolabraulax brevivena, Wang, Yi-Ping, Chen, Xue-Xin, Wu, Hong & He, Jun-Hua, 2010
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publication ID |
https://dx.doi.org/10.3897/zookeys.61.450 |
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persistent identifier |
https://treatment.plazi.org/id/8C227AEF-51DB-A367-7E6C-9E467ECC4FD2 |
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treatment provided by |
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scientific name |
Dolabraulax brevivena |
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sp. n. |
Dolabraulax brevivena ZBK sp. n. Figs 3 a–g
Type specimens examined:
Holotype: ♀, Tianmushan, Zhejiang, 10-12, IX-1983, He Jun-hua, No. 83215. Paratypes: 3♀♀, Tianmushan, Zhejiang, 10-12, IX-1983, He Jun-hua, No. 832137, 832141, 832142; 1♂, west Tianmushan, Zhejiang, 16-V-1988, Lou Xiao-ming, No. 883232; 1♀, West Tianmushan, Zhejiang, 25-VI-1984, Zhu Xi-liang, No. 842055; 1♀, Longwangshan, Anji, Zhejiang, 31- VIII-1993, He Jun-hua, No. 9310586; 1♀, Si’an, Changxing, Zhejiang, 1-V-1984, Yuan Rong-lan, No. 940522.
Description.
Length of body 3.0-4.5 mm, fore wing 3.5-4.0 mm, and ovipositor sheath 5.0-5.5 mm.
Head (Figs 3 a–b, d): Antennae with 27 segments; first flagellomere parallel-sided, 3.0 times as long as its maximum width, 1.1 and 1.2 times as long as the second and third flagellomeres, respectively; second and third ones 2.5 and 2.7 times as long as their maximum width, respectively; median flagellomeres 2.6 times as long as their maximum width; terminal flagellomere tapering apically, approximately 3.4 times a s long as its basal width; medio-transversal clypeal carina without a row sparse short setae; height of clypeus: inter-tentorial distance: tentorio-ocular distance =2.5: 6: 4; malar space 0.36 times as long as height of eye; face with sparse long setae, relatively dense laterally; height of face: width of face: width of head = 10: 11: 23; frons smooth and shiny, weakly impressed, without longitudinal ridge medially; shortest distance between posterior ocelli: diameter of posterior ocellus: shortest distance between posterior ocellus and eye = 2.5: 1: 7; vertex smooth and shiny, with sparse long setae laterally.
Mesosoma (Fig. 3c): Mesosoma 1.8 times as long as its maximum height, smooth and shiny with dense long setae medio-posteriorly; notauli shallowly impressed half of the anterior and flat posteriorly with sparse long setae along its whole length; middle lobe of mesoscutum relatively raised anteriorlly and protruding in front of the lateral lobes; scutellar sulcus rather wide and deep, with distinctly crenulate; metanotum with a strongly raised area medially; propodeum glabrous, with a mid-longitudinal carina, arising from the 1/4 of the hind margin, with sparse setae medially, but relatively densely long setose laterally.
Wing (Fig. 3f): vein r of fore wing relatively short, length of fore wing veins SR1: 3-SR: r = 37: 11: 6; vein 1-SR+M of fore wing weakly bent apically; length of fore wing veins 2-SR: 3-SR: r-m = 12: 11: 6; length of veins of hind wing SC+R1: 2-SC+R: 1r-m = 15: 3.5: 5; vein 2-SR+R of hind wing distinctly longitudinal; vein C+SC+R of hind wing with short thickened humeral bristles apically.
Leg: Length of fore femur: tibia: tarsus = 21: 23: 29; length of hind femur: tibia: basitarsus = 12: 11: 6, and 4.1, 10.0 and 7.5 times their maximum width, respectively; tibia of hind leg with weakly longitudinal groove medially; spurs of hind leg 0.36 and 3.3 times as long as its basitarsus; tarsal claws simple but with basal lobe.
Metasoma (Figs 3e, g): Metasoma distinctly longer than head and mesosoma combined, more or less parallel-sided; first tergite 1.3 times as long as its maximum apical width, with strongly raised area medio-apically, crenulate laterally, occupying four-fifths of its entire length; second tergite with medio-basal glabrous band hardly reaching the suture between second and third tergites, and lateral depressed longitudinal grooves crenulate laterally, the remainder with rugulose sculpture; suture between second and third tergites deep and crenulate, wide medially and relative narrow laterally; third tergite with distinct raised areas antero-laterally, smooth and shiny, with sparse setae apically; fourth tergite without transversal impressed groove basally; fourth-seventh tergites uniformly smooth and shiny, with sparse short setae apically; hypopygium acute apically, distinctly extending beyond apex of metasoma; ovipositor sheath 1.8 times as long as fore wing, with dense setae; ovipositor with teeth apico-ventrally and without dorsal notch pre-apically.
Colour:
Head reddish yellow; antenna dark yellow; face reddish yellow; frons and vertex yellowish brown; mesosoma dark brown; fore leg pale yellow, middle and hind legs dark yellow; pterostima yellowish brown; wings membrane pale grey, and veins dark yellow; metasomal tergites yellowish brown dorsally and pale yellow apically and ventrally; ovipositor sheath yellow brown.
Male:
Similar to the female, but relatively small, length of body 3.2 mm, metasoma dark yellow.
Biology:
Unknown.
Distribution:
China (Zhejiang).
Etymology:
The new species is named after the character of vein r of fore wing, which is relatively shorter.
Diagnosis:
This species is similar to Dolabraulax implicatus Quicke, but differs from the latter by characters listed in the key above.
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.