Mimela campyloclados, Prokofiev & Zorn, 2016
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publication ID |
https://doi.org/ 10.21248/contrib.entomol.66.2.329-346 |
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persistent identifier |
https://treatment.plazi.org/id/7A52E960-FF84-501E-FCBF-FF37FF34A62F |
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treatment provided by |
Carolina |
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scientific name |
Mimela campyloclados |
| status |
sp. nov. |
Mimela campyloclados spec. nov.
( Figs 3 View Figs 1–14 , 18–22 View Figs 15–28 )
Holotype: “ VIETNAM, Binh Thuan prov., ~ 45 km SW Phan Thiet, My Thanh vill., 10°05.530' N, 107°54.450' E, alt. 180 m, monsoon forest, at light, 13– 16.5.2012, A.M. Prokofiev leg. | [holotype label]” ( CAP). GoogleMaps
Paratypes: 1 , 2 [same label as for holotype] | [paratype label] ( CAP) .
Description (holotype): Length 15 mm, greatest width 8.5 mm. Reddish-testaceous with strong opalescent metallic-green, partly cupreous luster above, on pygidium and legs, at certain light traces of rosy lights in apical third of elytra inward from apical protuberances; tarsi darker than other parts of legs; pilosity pale.
Clypeus subrectangular, with sides very indistinctly convergent anteriad, anterior angles broadly rounded, not distinct; anterior margin straight, weakly raised. Fronto-clypeal suture distinct. Clypeus coarsely, rugosely punctate; anteriormost part of frons rugosely punctate, punctures becoming separated posteriad, fine and sparse on vertex. Pronotum 2.2 times broader than long, sides almost parallel in basal half, distinctly convergent and weakly convex in anterior half; anterior angles produced, sharp; posterior angles weakly obtuse, shortly rounded. Anterior margin of pronotum with marginal line which is disappearing in the middle, concave and almost straight medially; posterior margin of pronotum strongly convex in middle third, indistinctly concave in outer thirds; basal border interrupted before scutellum. Sides of pronotum with few distant long erect hairs. Pronotum, scutellum and elytra very finely and scantily punctured; punctate rows of elytra hardly traceable. Posterior margin of scutellum broadly rounded. Sides of elytra with marginal line, with elytral epipleura thickened, bearing a row of short and sparse setae, becoming very distant behind humeral umbo. Pygidium strongly convex, finely transversely rugose at base, finely punctured in other parts, with sparse erect moderately long hairs at outer edge.
Prosternal process well-developed, plough-shaped, pointed anteriorly, with sharp posterior ventral corner. Mesometasternal process absent. Sides of sterna finely, rugosely punctate and setose, with short, not dense adpressed hairs; disc of metasternum glabrous, weakly impressed. Abdominal sternites with a transverse row of sparse rather short adpressed hairs along midline of sternite; last visible sternite glabrous with a row of very short setae along distal border.
Protibia bidentate, teeth closely spaced, inner spur attached just behind the level of apex of basal tooth. Last joint of fore tarsi thickened, strongly toothed at middle of its concave margin. Inner fore claw broadened, its ventral margin excavated at base, with lobes almost parallel, lower lobe about three times broader than upper at base. Outer claw of middle tarsi cleft.
Aedeagus: Figs 18–22 View Figs 15–28 .
Female: Antennal club shorter. Pygidium less convex. Hairs on pygidium and abdominal sternites somewhat longer than in the males. Apical tooth of protibia much longer, broader, finger-like. Inner spur attached well behind basal tooth of protibia. Last joint of fore tarsi somewhat broadened distally, only slightly indented at middle of its concave margin; inner claw narrow, with lower lobe only 1.5 times broader than the upper one at base. Vaginal palpi triangular, densely setose.
Variations (both sexes): Length 15.0–17.0 mm, greatest width 8.5–9.5 mm. Frons sometimes more coarsely, rugosely punctate in most of its surface; in such cases punctures on vertex also better developed and more numerous. Sides of pronotum sometimes more distinctly rounded, weakly convergent toward the posterior angles. Anterior margin of pronotum sometimes very weakly convex in the middle.
Differential diagnosis: Mimela campyloclados is extremely similar to M. ignistriata LIN, 1990 known from Yunnan and northern Thailand, but differs in not having fiery red to purple oblique stripes on elytra. Moreover, the left paramere of the aedeagus is less strongly bent compared to M. ignistriata ( Figs 23–25 View Figs 15–28 ) and continuously attenuate instead of subapically thickened. SABATINELLI (1994) already noticed the difference of the aedeagus between M. ignistriata specimens from northern Thailand and one specimen from Annam, but refrained from description. Mimela langbianica and M. ngoclinhensis NGUYEN & WADA, 2006 also show the same type of asymmetric aedeagus, but can easily be differentiated by their leaf-green ( M. langbianica ) and metallic green ( M. ngoclinhensis ) dorsal color.
Distribution: So far known only from the Dalat Plateau, South Vietnam.
Etymology: The species epithet is Latinized from the Greek words “ΚΑμπυλός” (curved) and “Κλάδος” (branch), alluding to the curved left paramere of the aedeagus.
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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