Gynaecoserica luteata, Ahrens & Fabrizi, 2009
|
publication ID |
https://doi.org/ 10.1080/00222930902968809 |
|
persistent identifier |
https://treatment.plazi.org/id/0399C459-DB12-6F63-FDA2-FCED58160EF6 |
|
treatment provided by |
Felipe |
|
scientific name |
Gynaecoserica luteata |
| status |
sp. nov. |
Gynaecoserica luteata sp. nov.
( Figures 4D–F View Figure 4 , 7H View Figure 7 , 9A View Figure 9 )
Type material examined
Holotype. Ƌ “Laos-NE; Hua Phan prov.; 25 km SE Vieng Xai (by road); Ban Kangpabong env.; 20°19¢ N 104°25 ¢E; D. Hauck leg.; 14.–18.v.2001 ” ( TICB).
Description
Length 4.0 mm, length of elytra 2.6 mm, width 2.4 mm. Body oval, surface yellowish brown with disc of pronotum and side of elytra widely darker, legs and labroclypeus yellowish, dorsal surface except head moderately dull and sparsely setose.
Labroclypeus almost semicircular, distinctly wider than long, widest at base, lateral margins strongly curved and strongly convergent, anterior angles obsolete, lateral border and ocular canthus producing a distinct blunt angle, margins weakly reflexed, anterior margin narrowly sinuate at the middle; surface weakly convex and shiny, finely and densely punctate, distance between punctures equal to their diameter, with a few coarse punctures behind the anterior margin each bearing long, erect setae; frontoclypeal suture feebly incised and weakly curved medially; smooth area in front of eye almost as wide as long; ocular canthus short and slender, sparsely minutely punctate, without a fine terminal seta. Frons completely moderately shiny, with fine, moderately dense punctures, glabrous except a few short setae beside eyes and behind frontoclypeal suture. Eyes small, ratio of diameter: interocular width 0.46. Antenna yellow, composed of 10 antennomeres; club with five antennomeres, distinctly longer than the remaining antennomeres combined. Mentum weakly elevated and flattened anteriorly.
Pronotum moderately wide, widest at base, lateral margins weakly curved and weakly convergent anteriorly, in anterior half more strongly curved and strongly convergent towards the strongly produced and sharp anterior angles, posterior angles blunt, anterior margin convexly produced medially, with a broad marginal line, basal margin without marginal line; surface with dense and fine punctures, with minute setae in punctures; anterior border sparsely setaceous, lateral border almost glabrous; hypomeron distinctly margined at base but not ventrally produced. Scutellum short and triangular, with fine, dense punctures, basally with a small smooth triangular area, microscopic setae present in the punctures.
Elytra short and oval, widest at middle, striae moderately impressed, finely and densely punctate, intervals moderately convex, with fine and moderately dense punctures along the striae, punctures with fine microscopic setae, odd intervals with a few coarse punctures bearing a robust white seta; epipleural edge fine, ending at weakly curved external apical elytral angle, epipleura sparsely and shortly setaceous, apical border without short microtrichomes.
Ventral surface dull, with fine and moderately dense punctures, sparsely setose, metacoxa only laterally with a few strong setae; each abdominal sternite with indistinct transverse row of coarse punctures bearing short setae between fine, dense punctation, penultimate sternite apically with narrow shiny smooth sclerotized border, last sternite medially a little shorter than the penultimate one. Mesosternum between mesocoxae as wide as mesofemur, with irregularly scattered very strong setae. Ratio of length of metepisternum: metacoxa 1: 1.9. Pygidium convex, densely mixed, finely and coarsely punctate, without smooth midline, with sparse robust adjacent yellowish setae in the coarse punctures.
Legs robust and short; femora dull, with two longitudinal rows of setae, finely and sparsely punctate; metafemur shiny, sharply margined anteriorly and without a submarginal serrate line, posterior margin weakly convex and glabrous, ventrally only weakly widened in apical half and not serrate, dorsally finely serrate, with moderately short setae. Metatibia moderately wide and short, widest at middle, ventrally convexly widened at middle, ratio width: length: 1: 2.6, dorsally longitudinally convex, in apical half weakly carinate, with two groups of spines, basal one at one-third, apical one at two-thirds of metatibial length, basally with a few single, fine spines in the punctures; external face longitudinally convex, with very sparse, fine punctures, glabrous; ventrally edged and serrate, with three strong, equally distant spines, internal face not punctate and smooth, apex interiorly near tarsal articulation sharply and deeply truncate. Tarsomeres dorsally glabrous and impunctate, ventrally with sparse, short setae; metatarsomeres ventrally with a strongly serrate ridge, beside which is a fine longitudinal carina, first metatarsomere slightly longer than the following two tarsomeres combined and one-third of its length longer than the upper tibial spur. Protibia very short, bidentate, protarsal claws symmetrical.
Aedeagus shown in Figure 4 View Figure 4 (D–F).
Diagnosis
Gynaecoserica luteata sp. nov. is externally and in the shape of the male genitalia very similar to G. maymyoensis sp. nov. but it differs by the subparallel parameres being slightly widened towards the apex.
Etymology
Name derived from Latin, luteata , of yellowish colour.
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.