Anticyphon davidsoni, Ruta, Rafał, 2016
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publication ID |
https://doi.org/ 10.11646/zootaxa.4175.4.1 |
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publication LSID |
lsid:zoobank.org:pub:5C11185B-E219-4214-8A01-517FBB8C99BA |
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DOI |
https://doi.org/10.5281/zenodo.6060609 |
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persistent identifier |
https://treatment.plazi.org/id/6D4DE34B-B7E7-47BF-9184-CB04BAA26964 |
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taxon LSID |
lsid:zoobank.org:act:6D4DE34B-B7E7-47BF-9184-CB04BAA26964 |
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treatment provided by |
Plazi |
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scientific name |
Anticyphon davidsoni |
| status |
sp. nov. |
Anticyphon davidsoni sp. nov.
( Figs 1 View FIGURE 1 A, 2A–C, 3A, 6)
Type material. Holotype, male ( CMNH): “ ECUADOR Loja . Cor- \ dillera Cordoncillo \ 11 km S Saraguro \ 3130 m. 27 Oct 1987 ”; “ C. Young, R. Davidson \ J. Rawlins. \ Cloud forest .” Paratype, male ( CMNH): “ ECUADOR: Chimborazo . \ 21 km ESE Licto, stream \ above Rio Alao. 3500m \ 18–19 October 1987 ”; “ J. Rawlins, C. Young \ R. Davidson. \ Montane woodland.”
Diagnosis. The largest species of the genus, pronotal disc with normal, not granulate punctures. Resembling A. santanderensis sp. nov. in size and pronotal punctation. It can be identified on the basis of male genitalia: trigonium is almost as long as parameroids (distinctly shorter in A. santanderensis sp. nov.).
Description. Male. Body oval, moderately large, slightly flattened, clothed with brownish procumbent setae. Colouration of dorsum brown, antennae and legs dark brown (holotype) or brown (paratype). Head small, 1.75× wider than interocular space, covered with very subtle granulate punctures; eyes relatively big, protuberant; frons with two shallow depressions. Antennae as in genus description. Mandibles without denticles on inner margins. Pronotum small, transversely rectangular, sides slightly curved, widest at posterior angles, anterolateral angles broadly rounded, not produced; disc moderately convex. Punctation of pronotum subtly granulate on lateral portions, very subtle and sparse in central portion. Pronotum without distinct pits along basal margin. Each elytron with 3 well marked longitudinal carinae. Elytral punctation irregular, relatively sparse; punctures shallow, separated by ca. 1.0 diameter. Penis ( Fig. 6 View FIGURE 6 B) large (L 2.03 mm, W 0.42 mm), parameroids long, curved in apical portion, pointed at apices; trigonium subtriangular, without lateral processes, almost as long as parameroids, pala slightly shorter than parameroids, narrow, with membranous dorsal processes of penis; tegmen ( Fig. 6 View FIGURE 6 C) large (L 1.52 mm, W 0.59 mm), with narrow, subtriangular parameres, pointed at apices; sternite VIII ( Fig. 6 View FIGURE 6 D) small (L 0.40 mm, W 0.61 mm), widely V-shaped, with sparse setae in apical portions; sternite IX ( Fig. 6 View FIGURE 6 E) relatively small (L 0.50 mm, W 0.65 mm), consisting of two subtriangular hemisternites, lightly sclerotized, with setose apical portion; tergite VIII ( Fig. 6 View FIGURE 6 F) (L 0.98 mm, W 0.92 mm) with transversely rectangular apical plate, apical portion darker, covered with microsetae, apical margin with row of dense, short setae intermixed with sparse, longer ones, basal portion of apical plate with transverse rod, apodemes shorter than apical portion; tergite IX ( Fig. 6 View FIGURE 6 G) (L 0.85 mm, W 0.50 mm) distinctly narrower than tergite VIII, central portion lightly sclerotized.
Female. Unknown.
Measurements and ratios. Males (n = 2): TL 6.67–6.75 (6.71) mm, PL 1.0–1.05 (1.03) mm, PW 2.15–2.25 (2.20) mm, EL 5.43–6.05 (5.74) mm, EW 3.78–3.80 (3.79) mm; TL/EW 1.76–1.78 (1.77), PW/PL 2.14–2.15 (2.15), EL/EW 1.44–1.59 (1.51), EL/PL 5.17–6.05 (5.61).
Distribution. Known from two localities in the southern part of Ecuadorian Andes ( Fig. 14 View FIGURE 14 ).
Etymology. Named after Robert L. Davidson, curator of the Coleoptera section of the CMNH.
| CMNH |
The Cleveland Museum of Natural History |
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.