Aphelopus taianensis Olmi, Ødegaard & Chen, 2022

Olmi, Massimo, Chen, Hua-Yan, Guglielmino, Adalgisa, Ødegaard, Frode, Vollaro, Massimo, Capradossi, Leonardo & Liu, Jing-Xian, 2022, DNA barcoding of Aphelopus Dalman (Hymenoptera, Dryinidae) from China, with descriptions of four new species, European Journal of Taxonomy 794 (1), pp. 40-71 : 51-53

Aphelopus taianensis Olmi, Ødegaard & Chen sp. nov.

urn:lsid:zoobank.org:act:407CE45D-7B8C-426C-9145-A2A45E9BE81C

Figs 6 , 8C

Diagnosis

Male with head black, except mandible testaceous; mesosoma black; notauli incomplete, reaching approximately 0.5× length of mesoscutum; aedeagus distally not tridentate ( Fig. 8C ); basivolsella very narrow ( Fig. 8C ), without distal outer process, with two subdistal bristles and one lateral outer pointed apophysis; distivolsella not in the form of a long straight rod.

Etymology

The new species is named after Taian City, where it has been collected.

Material examined

Holotype CHINA • ♂; Shandong, Taian ; 36°12′ N, 117°5′ E; 20 Jul. 2015; Qing-Tao Gong leg.; apple orchard; MT; SCAU 3011647 ( SYSBM).

Description

Male ( Figs 6 , 8C )

Fully winged; length 1.8 mm. Head black, except mandible testaceous; antenna brown, except scape and pedicel testaceous; mesosoma black; metasoma brown; legs yellow. Antenna filiform; antennomeres in following proportions: 3:4:3:4:5:5.5:5:6:6:10. Head dull, granulated; frontal line incomplete, absent shortly in front of anterior ocellus; occipital carina complete; POL = 6; OL = 3; OOL = 3; OPL = 1.5; TL = 2; greatest breadth of lateral ocellus about as long as TL. Mesoscutum and mesoscutellum dull, granulated. Notauli incomplete, reaching approximately 0.5 × length of mesoscutum ( Fig. 6C ). Metanotum shiny, unsculptured. Metapectal-propodeal complex dull, reticulate rugose, with two complete longitudinal keels on posterior surface; posterior surface with median area unsculptured and lateral areas rugose. Fore wing hyaline, without dark transverse bands. Basivolsella ( Fig. 8C ) very narrow, without distal outer process, with one lateral outer pointed apophysis and two subdistal bristles situated on top of each other. Tibial spurs 1/1/2.

Female

Unknown.

Remarks

From the above diagnosis, A. taianensis Olmi, Ødegaard & Chen sp. nov. is close to A. nepalensis Olmi, 1984 . However, in the new species, the basivolsella ( Fig. 8C ) is very narrow and with one lateral pointed apophysis (very wide and without lateral pointed apophysis in A. nepalensis ( Olmi & Xu 2015: pl. 4k). Following the description of A. taianensis Olmi, Ødegaard & Chen sp. nov., the key to males of Oriental Aphelopus published by Olmi & Xu (2015) should be modified by replacing couplet 15 as follows:

15. Notauli reaching approximately 0.65 × length of mesoscutum ............... A. nigriceps Kieffer, 1905

– Notauli reaching approximately 0.5 × length of mesoscutum ( Fig. 6C ) ...................................... 15’

15’. Basivolsella very wide, without lateral pointed apophysis, with two subdistal bristles situated on either side of each other ( Olmi & Xu 2015: pl. 4k) .................................. A. nepalensis Olmi, 1984

– Basivolsella very narrow, with one lateral pointed apophysis and two subdistal bristles situated on top of each other ( Fig. 8C ) ....................................... A. taianensis Olmi, Ødegaard & Chen sp. nov.

Figures

Fig. 6. Aphelopus taianensis Olmi,Ødegaard & Chen sp. nov., ♂, holotype (SCAU 3011647). A. Habitus, dorsal view. B. Habitus, lateral view. C. Mesosoma, dorsal view. D. Head, anterodorsal view.

Fig. 8. Male genitalia: A. Aphelopus incognitus Chen, Olmi & Guglielmino sp. nov., ♂, holotype. B. Aphelopus maculiala Olmi, Chen & Ødegaard sp. nov., ♂, holotype. C. Aphelopus taianensis Olmi, Ødegaard & Chen sp. nov., ♂, holotype. D. Aphelopus zaifui Olmi, Chen & Liu sp. nov., ♂, paratype. E. Aphelopus spadiceus Xu & He, ♂ from China, Sichuan, Wolong. F. Aphelopus serratus Richards, 1939, ♂ from Leicester (England, UK). Right half removed.