Macronotops biserratus Qiu, Xu & Chen, 2019

Qiu, Jian-Yue, Xu, Hao & Chen, Li, 2019, A revision of the rare flower beetle genus Macronotops Krikken (Coleoptera: Scarabaeidae: Cetoniinae) from Asia with biological notes, Zootaxa 4556 (1), pp. 1-65 : 8-9

publication ID	https://doi.org/ 10.11646/zootaxa.4556.1.1
publication LSID	lsid:zoobank.org:pub:7C55D5CB-5A0F-4DCE-A5A7-755339CF45F3
DOI	https://doi.org/10.5281/zenodo.5934003
persistent identifier	https://treatment.plazi.org/id/03CA3425-FF97-A421-C2E9-F98C103614E2
treatment provided by	Plazi
scientific name	Macronotops biserratus Qiu, Xu & Chen
status	sp. nov.

Treatment

Macronotops biserratus Qiu, Xu & Chen View in CoL new species

( Figs. 1 View FIGURES 1–23 , 24 View FIGURES 24–47 , 48 View FIGURES 48–65 , 72–73 View FIGURES 72–98 , 111 View FIGURES 111–122 , 123 View FIGURES 122–134 , 135–136 View FIGURES 135–136 , 203 View FIGURES 203–214 , 258 View FIGURES 258–260 )

Type material. LAOS: ♂ (Holotype, SWU), VI.2014, Mount Phu Pane , Hua Phan Prov., 2,060 m; Paratypes (2♂♂): 1♂ ( QCCC), VI.2014, Mount Phu Pane , Hua Phan Prov., 2,060 m ; 1♂ ( KSCJ), 10–21.VI.2010, Phou Pan (Mt.), Houa Phan Prov., St. Jakl .

Holotype (male). General: Body length 18.0 mm; width 8.0 mm, widest at humeral umbone, gradually narrowed backward. Body brown. Surface with fulvous, brown, light yellow and black setae, and yellow tomentous maculae. Head: Dorsal surface with dense, setiferous punctures; setae fulvous, short. Clypeus with week green metallic reflections; anterior margin nearly straight and slightly raised; clypeolateral ridge not distinct. Frons with a slightly raised longitudinal ridge ( Fig. 1 View FIGURES 1–23 ). Maxillary palpus and labial palpus brown. Antenna brown, antennal club long, about 1.5 times length of antennomeres 2–7 combined; inner side of antennomere 8 with short, dense, fulvous setae ( Fig. 1 View FIGURES 1–23 ). Ventral surface clad with long, orange setae ( Fig. 136 View FIGURES 135–136 ). Pronotum: Widest at base, basomedian area depressed. Lateral margin curved; posterior margin distinctly protruded. Surface clad with short, reddish-brown setae except for basolateral area; basolateral area clad with long, black and light yellow setae ( Fig. 135 View FIGURES 135–136 ). Scutellum: Surface clad with short, sparse, black setae. Elytron: With posthumeral macula, lateral macula, median macula, and distal macula; median macula and distal macula small. Surface densely clad with setae; setae light yellow on maculae; setae black behind humeral umbone and on lateral and distal declivity; setae dark brown on juxtascutellar area; setae long, fulvous on disc; setae fulvous along lateral margins; humeral umbone glabrous ( Fig. 135 View FIGURES 135–136 ). Mesepimeron: Dark brown, clad with light yellow and dark brown setae. Metepisternum and metepimeron: Dark brown, clad with dark brown and black setae. Sternum: Preprosternum dark brown, almost glabrous. Mesosternum black, clad with long, sparse, light yellow setae. Mesometasternal process short, glabrous, brown, apex rounded; mesometasternal suture depressed, clad with long, yellow setae. Metasternum black, with long, sparse, yellow and brown setae; middle portion glabrous ( Fig. 136 View FIGURES 135–136 ). Pygidium: Dark brown. Surface clad with short, dense, fulvous and black setae; setae fulvous in middle ( Figs. 72 View FIGURES 72–98 , 135 View FIGURES 135–136 ). Abdomen: Without median groove. Six abdominal sternites visible; sternites II–V clad with yellow setae; setae on sternite II long, dense; setae on sternites III–V short, sparse, but longer on sides; setae near posterior margin of sternite VI long, orange; sternite VII with sparse, short, fulvous setae on sides. Sternites II–V with a small, indistinct yellow macula close to posterior margin on each side; densely clad with fulvous and black setae in dorsal and lateral portion ( Fig. 136 View FIGURES 135–136 ). Legs: Slender, simple. Metacoxa brown; clad with long, orange and yellow setae. Femora and tibia reddish-brown; clad with long, orange and yellow setae. Tiny teeth between 3 large teeth of protibia distinct ( Fig. 25 View FIGURES 24–47 ); spine near the middle of outer margin of mesotibia sharp, but blunt in metatibia; metatibia with a row of dense, brush-like, orange setae along inner margin ( Figs. 135–136 View FIGURES 135–136 ); dorsal tooth of metatibia longer than basitarsus of metatarsus, outer tooth small and short ( Fig. 48 View FIGURES 48–65 ). Tarsi reddish-brown; basitarsus of metatarsus with a cluster of sparse, long setae ( Fig. 48 View FIGURES 48–65 ). Genitalia: Parameres narrow, long; apex rounded, slightly expanded. Interparameral split wide; base with membrane, distinctly divided in medial. Median lobe ribbon-like; distinctly longer than paramere ( Fig. 111 View FIGURES 111–122 ).

Female. Unknown.

Variability. Pygidium of the male paratype with a distinct yellow macula ( Fig. 73 View FIGURES 72–98 ).

Differential diagnosis (male). Length of clypeus almost equal to width. Antenna brown ( Fig. 1 View FIGURES 1–23 ). Elytra dark brown, with posthumeral maculae, median maculae, lateral maculae and distal maculae ( Fig. 135 View FIGURES 135–136 ). Pygidium with numerous black setae ( Fig. 72 View FIGURES 72–98 ). Abdominal sternites II–V with a small or indistinct, yellow maculae on each side ( Fig. 136 View FIGURES 135–136 ); male abdomen without median groove. Protibia with tiny teeth ( Fig. 24 View FIGURES 24–47 ); dorsal tooth of metatibia longer than basitarsus of metatarsus ( Fig. 48 View FIGURES 48–65 ).

This new species is similar to M. vuilleti , but can be separated by male protibia with several tiny teeth ( Fig. 24 View FIGURES 24–47 ), numerous black setae on pygidium ( Fig. 72 View FIGURES 72–98 ), distinctly longer legs ( Figs. 135–136 View FIGURES 135–136 ), elongated parameres, wider median lobe, and distinctly divided membrane ( Fig. 111 View FIGURES 111–122 ).

Etymology. The species name “ biserratus ” is a combination of the Latin words “ bi ” meaning “double”, and “ serratus ” meaning “serrated”, since this species is similar to M. vuilleti , but the protibia bear distinct tiny teeth between the three large teeth.

Distribution. Laos.

Remarks. This species occurs sympatrically with M. vuilleti at Mount Phu Pane, Laos, and these two species are very similar, but several morphological differences (see differential diagnosis section) are observed, especially in tiny teeth and male genitalia which are stable diagnostic characters of this genus.