Pachyteria diversipes bouvieri Ritsema,, 1896Pachyteria dimidiata Westwood, 1848 Pachyteria diversipes diversipes Ritsema,, 1890

Vasiļjeva, Anastasija, Anichtchenko, Aleksander & Barševskis, Arvīds, 2021, New faunistic and taxonomic data of the genus Pachyteria Audinet-Serville, 1883 (Coleoptera: Cermabycidae: Callichromatini), Baltic Journal of Coleopterology 21 (2), pp. 161-167 : 162-163

4.2. Pachyteria diversipes bouvieri Ritsema,

1896 stat. rest.

3. Pachyteria dimidiata Westwood, 1848

( Fig 1 , 4, 7 )

Material examined: Malaysia: Cameron Highlands , 04.2012 (1male); Perak, Tapah Hills, 05.2009 (1 female) .

Material examined: Laos: Kvang Si Falls , 550m 06.2018 (1 male), Luang Prabang, 360m, 05.2019 (1 female).

China: Guangxi, Debao Co, Huanglianshan Mt. , 06.2011 (1 male) .

Thailand: Phu Phan Mt. 2060m 06.2018 (4 males) .

Laos: Vientian Reg., Vang Vieng env., 19.09.2017, Vishnyakov A. leg., (1male) ;

Remarks. P. bouvieri were described by Ritsema (1896: 330) in base of single female from “Lakhon: Siam (Harmand)” [ Thailand] ( MNHN). Later species was synonymized with P. diversipes by Morati & Huet (2004), in base of studying of Holotype and five additional specimens, in which only one possibly belongs to a real P. bouvieri .

Indonesia: West Sumatra, Padang , 04.2014 (1male) ; Padang, Lembah, Annai , 01.2004 (1male) ; East Java, Argopuro Mt. , 05.2015 (1 male) ; idem but 06.2017 (1 female) .

Thailand: Lamphun, 10.10.1994 (1 male) ; idem but 06.2006 (2 males) ; Chiang Rai, 06.1991 (1 male, 1 female) ; Chiang Mai, 06.2011 (1 female) ; idem but 13.06.1999 (1male 1 female) , Phu Phan Mt. , 2060m, 05.2018 (1 female) ;

Comparative notes.

The subspecies P. d. bouvieri can be easely distinguished from nominative subspecies by have purple black head (i.e. red in P. d. diversipes) and by entirely red legs. Besides differences in the coloration, these subspecies can be distinguished by other morphological features, i.e. basal antennomere punctured more denser and coarser than that in P. d. diversipes; pronotum less transverse; border of anterior margin of pronotum strongly and highly raised; median pronotal furrow more distinct; scutellum of P. diversipes bouvieri is shorter ( Figs 4, 6 ).

Vietnam: Tam Dao , 80km NW Hanoi, 21°34’N 105°20’E, h= 1000m, summer 1996, Viktor Siniaev leg., (1 female) ; Lam Dong, Maria past., 05.2017 (1 female) ; Lam Dong, Bao Loc , 06.2017 (3 males 1 female) ; Lam Dong, Bao Lam , Da Ton, 06.2016 (1 male 1 female) ; Dong Tien, Binh Thuan, 06.2018 (1 female) ; Lam Dong, Bao Lam, Dambri , 05.2017 (1 male 1 female) ; idem but 07.2017 (1 female) ; idem but 09.2017 (1 female) ; Yen Bai, 06.2020 (1 female) ; West Sumatra, Padang 04.2014 (1 male) .

4.1. Pachyteria diversipes diversipes Ritsema, 1890

(Figs. 3, 6, 9)

Remarks. The detailed redescription of P. diversipes were given by Morati & Huet (2004) .

Material examined: Vietnam: Bao Loc, Lam Dong, Dambri 05.2017 (4 males, 1 female) ; idem but 05.2019 (2 males) ; idem but 06.2017 (4 males, 1 female) ; idem but 04.2019 (4 males, 1 female) ; idem but 05.2016 (1 female) ; idem but 07.2017 (1 male, 1 female) ; Dong Tien , Binh Thuan, 05.2019 (1 female) .

Morpha : Vietnam, Axan, Tay Giang-Quang Nam, 1300m, 07.2019 (1 female) .

P. diversipes ( Figs 1 , 3) is close to P. semiplicata ( Fig 2 ) from Vietnam, but differs by the following features: antennomeres 7-11 black in P. diversipes bouvieri, apical half of 6 and 7-11 antennomeres are black in P. diversipes diversipes, while in P. semiplicata apical half of 9 and 10-11 antennomeres are black; disc of pronotum of P. diversipes moderately punctate, punctures rounded and not confluent, while that in P. semiplicata densely punctate, punctures confluent transversally ( Figs 7-8 ); elytra of P. diversipes with purplish-blue shiny apical part i.e., black in P. semiplicata ; P. diversipes apical portions of each elytron with shiny and sparsely punctate elevated area along suture, i.e., in P. semiplicata apical half of elytra uniformly minutely punctate; P. diversipes metatibia and first segment of metatarsus red, i.e. P. semiplicata apical part of metatibia and all metatarsomeres black.

Redescription. Body length: 29.8-32.0 mm. Width: 8.6-9.5 mm. Body medium to relatively large-sized, with moderately long elytra.

Head black, with purplish-blue shiny subapical segments of palpi, labrum and anterior margin of clypeus dark-brown, moderately convex. Eyes large, strongly convex. Frons flattened in middle, strongly depressed in fronto-clypeal and at lateral portions; frons with large and smooth, subtriangular area; with dense and slightly coarse, fine lateral punctation; median longitudinal groove thin and deep.

Antennae stout, reaching apical fifth (male) or fourth (female) length of elytra; antennomeres 1- 2 and basal three quarters of 3th are reddish; apical part of 3th and 4-7 antennomeres yellow pale, sometimes apical part of 7 th antennomere slightly darker (one specimen with apical tree quarters black); 8-11 black.

Pronotum blood red, except of black with purplish-blue gloss apical and basal margins; pronotum slightly transverse, moderately convex, with stout lateral tubercles in middle. Disc of pronotum with irregular punctation, sparser in middle, with fine longitudinal line in medioapical half; interstices about 0.5–3 times as wide as diameter of nearest puncture. Scutellum black, elongated and triangular, weakly convex, with transverse concavity in apical third (Fig 3).

Elytra bicolored, basal half blood red and apical half black, with dark blue shiny; surface of elytra with fine punctation, densely covered by setae; elytra moderately wide and elongate, strongly narrowed just before roundly truncate apices; median part of each elytron glabrous, arcuately sinuate; disc of elytra moderately convex, depressed near base along apical half of suture, depressed part covered by setae denser than that in other elytron parts.

Legs dark red, long, densely covered by setae; basal segment of metatarsa reddish brown, more than 1.2 times as long as following two segments combined; tarsomeres of fore legs and middle legs – dark brown; spurs as long as apical width of metatibia; tibiae with dense pubescence along outer sides and near apices; apical part of metatibia slightly curved; femora thin, narrowed basally, gradually widened apically, apical part narrowed, metafemora bends less pronounced; metafemora markedly longer than meso- and profemora.

Abdomen black, light-blue glossy, strongly narrowed apicad; shape of apical abdominal segments shows difference between male and female: apical margiņ has an lobate indention in males, and orbicularly shaped in females.

Male. Aedeagus with deep and narrow incision on widely triangular apex ( Figs 10-11 ).

Female. Similar to male, but body slightly broader and longer, and antennae shorter.

Distribution. This subpecies is known from Luang Prabang, Laos and Mt. Phu Phan, Thailand.

Figures

Figs 1-2. Habitus of Pachyteria species: 1 – P. diversipes bouvieri Ritsema, 1896 stat. rest., male; 2 – P. semiplicata Pic, 1927, female; 3 – P. diversipes diversipes Ritsema, 1890. Scale bar = 1.0 cm.

Figs 4-9. Scutellum: 4 – P. diversipes bouvieri Ritsema, 1896 stat.rest.; 5 – P. semiplicata Pic, 1927; 6 - P. diversipes diversipes Ritsema, 1890. Pronotum of Pachyteria species: 7 – P. diversipes bouvieri Ritsema, 1896 stat. rest.; 8 – P. semiplicata Pic, 1927; 9 - P. diversipes diversipes Ritsema, 1890. Scale bar = 1.0 mm.

Figs 10-11. Aedeagus of Pachyteria diversipes bouvieri Ritsema, 1896: 10 – dorsal view; 11 – lateral view. Scale bar = 1.0 mm.