Derisemias tsutsumiuchii, Imada, 2019
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publication ID |
https://doi.org/ 10.11646/zootaxa.4629.1.5 |
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publication LSID |
lsid:zoobank.org:pub:525E8661-1786-4AD9-9CAE-EC56BDE8A1CE |
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persistent identifier |
https://treatment.plazi.org/id/517D8799-FFD5-B827-C69C-6A04E916FD4F |
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treatment provided by |
Plazi |
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scientific name |
Derisemias tsutsumiuchii |
| status |
sp. nov. |
Derisemias tsutsumiuchii sp. nov.
Figs. 1, 4 View FIGURES 1–5 , 6 View FIGURES 6–8 & 9 View FIGURES 9–10
Description (holotype). Length: 7.1 mm (from apical margin of pronotum to apices of elytra).
Male. Body elliptical, convex dorsally, broad, about 1.97 times as long as wide excluding head. Color entirely mottled brown except for pronotal disc, which is black with white lines, and with three orange tufts on elytra. Femora each with a black ring at basal 3/4 to apical half, with brownish ring both side of the black ring, and reddish brown around apex; tibiae each with a black ring at basal half to apical 3/4, with brownish ring both side of the black ring, and reddish brown around base; tarsi with apical half brownish.
Head rectangular, about 1.04 times as long as wide, nearly flattened dorsally, densely covered with brown hairs brown; interocular width about 0.74 times as broad as interscrobal width; eyes longer than broad; rostrum parallelsided, densely covered with brown fine hairs. Antennae reaching to posterior margin of pronotum, basal two segments ovate, 1st slightly longer than 2nd, 3rd longest, 4th longer than 5th which is nearly as long as 6th and 7th, 8th shortest, club symmetrical, 9th triangular, apically dilated, about 1.66 times as long as wide, 10th slightly shorter than 11th which is as long as 9th.
Pronotum trapezoidal, convex dorsally, about 1.90 times as long as wide, narrowed anteriorly; with tubercle near postero-lateral angle of lateral margin; central disc with short black hairs; disc with two tufts, with a transverse line in front of the two tufts, from each end of which a similar line runs obliquely forward to the other side of the disc without reaching apical margin, median line from occiput to beyond transverse line, all four lines white, sharply marked and fixed-width, the posterior half of each oblique line curved and forming with the transverse line a transverse half-moon; three pairs of whitish patch along posterior margin. Scutellum small, clothed with brown hairs.
Elytra convex dorsally, about 1.35 times as long as wide, parallel-sided in basal half, then narrowed posteriorly; basal margin of elytron weakly rounded; apices of elytra rounded; elytral disc with three pairs of tufts: 1st pair large, oblong-oval in dorsal view, roundly convex in lateral view, situated at basal 1/4 of 3rd interval; 2nd pair small, rounded in dorsal view, situated at apical 1/5 of 3rd interval; 3rd pair small, rounded in dorsal view, situated near apex of 5th interval. Pygidium nearly rectangular, about 0.52 times as long as wide, black excluding two brown patches around basal margin; basal margin strongly emarginate at the middle, lateral margins almost straight.
Prosternum distinctly covered with brown hairs; metaventrite sparsely punctate, the punctures larger than those on prosternum, and distinctly covered with reddish brown and whitish hairs which are regularly decumbent. Ventrites covered with small punctures which are sparser and shallower than those of metaventrite, and with reddish brown and whitish hair as on metaventrite; viewed from side, ventrite 1–4 almost horizontal conjointly, ventrite 5 somewhat slanting; ventrite 5 margined in the middle, and having two reddish brown patches of hair.
Female. Unknown.
Type material. Holotype: ♂, Kurodake , Shônai-chô , Yufu-shi , Ôita-ken, Kyushu, Japan, 22 VI 1991, Y. Tsut- sumiuchi leg.
Distribution. ( Fig. 11 View FIGURE 11 ) Japan (Kyushu).
Etymology. The specific name is in honor of Mr. Yuji Tsutsumiuchi who collected the holotype of this new species.
Comments. In general appearance, this species is similar to D. taiwanus Frieser, 1981 from Taiwan in that it shares the median line of the pronotum from occiput to beyond transverse line, but can be distinguished from the latter by the following characteristics: elytral disc with three pairs of tufts, not uniformly colored with yellowish but mottled brown, and thin in lateral view.
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.
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