Thereotricha sibirica, BLAGODEROV & GRIMALDI, 2004
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publication ID |
https://doi.org/ 10.1206/0003-0082(2004)433<0001:FSDICA>2.0.CO;2 |
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DOI |
https://doi.org/10.5281/zenodo.5060454 |
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persistent identifier |
https://treatment.plazi.org/id/039A87C9-FF88-FF96-FD41-FA6AFC70FE4F |
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treatment provided by |
Felipe |
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scientific name |
Thereotricha sibirica |
| status |
sp. nov. |
Thereotricha sibirica View in CoL , new species
Figure 4 View Figs , Plate 1B
DIAGNOSIS: Wing membrane without macrotrichia, RS base very basal, oblique, ~2Χ the length of rm; M3 section long; base of M 1 and M 2 fork at level of tip of R 1; veins R 1, R 5, M 1, M 2, and CuA with long setae.
DESCRIPTION: Body length = 1.83 mm (ho
lotype)/ 1.84 –1.85 mm (paratypes); wing length = 1.46 mm (holotype)/ 1.25 mm (paratype PIN 3130 View Materials /185). Head. Three ocelli present, equal in size, distance of lateral ocellus from median ocellus and eye margin 1.5Χ its diameter. Occiput with numerous small setae. Eyes large, bare, forming incomplete dorsal bridge (separated by twice the facet diameter). Scape and pedicel short, rounded. Flagellum 14segmented, flagellomeres barrellike, width 1.3Χ the length, covered by short trichia. Palpi 4segmented. Basal segment small, bacilliform, others short, rounded; antepenultimate segment with round sensory pit dorsomedially, slightly longer than others. Thorax. Antepronotum with one strong seta, proepisternum with six. Proepimeron touches episternum at episternal suture. Mesonotum uniformly setose. Midpleural pit present. Katepistrnum large, expanded caudally. Ventral part of mesepimeron not very narrow, parallelsided. Laterotergites bare, small. Metepisternum setose, with narrow anteriodorsal cleft. Wing membrane without macrotrichia. Costa ends beyond tip of R 5, onethird the distance between tips of R 5 and M 1. Sc very short, ends free just beyond RS base. RS base proximad, oblique, 1.5Χ rm length. R 1, R 5, M 1, M 2, and CuA with long setae. R 1 about 0.7Χ wing length. RS base oblique. Crossvein rm fused with tb and mcu in one horizontal vein. M3 section 1.5Χ as long as fork of M 1 and M 2. M 3+4 reduced, seen as a fold at base only. CuA ends before middle of the wing. Legs. Fore coxae with numerous setae on anterior and distal surfaces, mid coxae with distal rows and several setae on apical part, hind coxae with caudodistal row of setae. Fore tibia with anteroapical pit having two combs of setae. Abdomen setose. Eighth segment slightly shorter than preceding ones. Ninth tergite ovoid, with apical comb of short blunt setae. Gonocoxites stout, triangular in lateral view. Gonostyli small, flat, rectangular, with several apical setae .
MATERIAL: Holotype PIN 3130 View Materials /183, male; paratypes, PIN 3130 View Materials /182, 3130/184, 3130/ 185, males; all specimens in the same piece of amber. Russia: Taimyr Peninsula , Yantandarkh, coll. 1970.
ETYMOLOGY: The species epithet is in reference to Siberia, the region where the original locality is situated.
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.