Chaetocladius
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publication ID |
https://doi.org/ 10.5281/zenodo.204648 |
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DOI |
https://doi.org/10.5281/zenodo.6183098 |
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persistent identifier |
https://treatment.plazi.org/id/0F597542-4269-FFBB-85C8-9367FB89FD01 |
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treatment provided by |
Plazi |
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scientific name |
Chaetocladius |
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Chaetocladius View in CoL View at ENA sp. prope suecicus (Kieffer) sensu Edwards
( Figs. 5 View FIGURES 3 – 5 , 11 View FIGURES 8 – 11 )
Material examined. GERMANY (VM): 1 adult male (genetic voucher ES265; Genbank accession number HQ712185 View Materials ), Bavaria, Nationalpark Berchtesgaden, Schapbachquelle 360a, N 47.5823°, E 12.9581°, 1140 m a.s.l., 20.ix.–04.x.2005, leg. F. Eder.
Diagnostic characters. The inspected morphological features of the male imago fit within the diagnosis given above for Chaetocladius suecicus . Minor differences would be the slightly higher leg ratios for all legs, lower numbers of acrostichal and prealar setae, and the shorter virga, even though body size (wing length) is higher than in C. suecicus .
Male imago (n = 1). Wing length 2.74 mm. Gonocoxite length/wing length 83. Coloration brownish black, scutellum lighter. Halters light at tips.
Head. AR 1.68. Terminal flagellomere 755 µm long. Temporal setae 12, including 3 inner verticals, 9 outer verticals and 0 postorbitals. Clypeus 125 µm long, with 6 setae. Palpomere lengths (in µm): 30, 70, 185, 160, 240.
Thorax. Antepronotum with 8 and 10 setae. Acrostichals 30, dorsocentrals 13 in one row, prealars 8. Scutellum with 11 setae in one transverse row.
Wing ( Fig. 5 View FIGURES 3 – 5 ). Costa barely extended. VR 1. Anal lobe projecting. Brachiolum with 1 seta; veins bare, except R with 18 or 19, R1 with 4 or 6, and R4+5 with 2 setae. Squama with 13 setae.
Legs. Spur of front tibia 95 µm long, spurs of middle tibia both 37 µm long, of hind tibia 32 and 78 µm long. Lengths and proportions of leg segments as in Table 3.
fe ti ta1 ta2 ta3 ta4 ta5 LR BV SV p1 1050 1250 840 480 350 200 120 0.67 2.73 2.74 p2 1050 1120 550 320 240 160 110 0.49 3.28 3.95 p3 1100 1330 860 470 360 210 120 0.65 2.84 2.83 Hypopygium ( Fig. 11 View FIGURES 8 – 11 ). 14 median setae on tergite IX, laterosternites IX with 8 and 9 setae. Anal point 60 µm long. Length ratio anal point/wing <0.25. Phallapodeme 125 µm long; transverse sternapodeme 105 µm long. Virga 22 µm long, with subequal spines arranged in a bundle. Gonocoxite 227 µm long. Gonostylus ( Fig. 11 View FIGURES 8 – 11 ) 93 µm long, megaseta 15 µm long. HR 2.42. Inferior volsella ventrally covered with microtrichia.
Remarks. We refrain from proposing a new species name as long as the minor morphological differences listed in the diagnosis are not confirmed by more specimens and information on the other live stages. However, the large differences between the partial COI sequences (Table 1) suggest that the present specimen belongs to a species separate from C. suecicus .
Distribution. The only known specimen was collected in the Bavarian Alps.
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.