Chrysolina (Allohypericia) aeruginosa poricollis (Motschulsky, 1860)

Mikhailov, Yu. E., 2021, New and little known representatives of the genus Chrysolina Motschulsky, 1860 (Coleoptera: Chrysomelidae) from China, Far Eastern Entomologist 443, pp. 6-16 : 8-10

Chrysolina (Allohypericia) aeruginosa poricollis (Motschulsky, 1860)

Figs 1, 2

Taeniosticha poricollis Motschulsky, 1860: 228 (lectotype – ♀, " Mongolie " (refers to Inner

Mongolia), in ZMMU, designated by Bieńkowski, 2001: 108; examined).

Chrysolina (Allohypericia) aeruginosa poricollis: Bieńkowski, 2001: 108 ; Yang et al., 2015:

66; Bieńkowski, 2019: 46;

Chrysomela lobicollis Fairmaire, 1887: 331 (lectotype – ♀, " Chine: Péking "; in NMPC; here designated).

Chrysolina (Allohypericia) lobicollis: Bechyné, 1950: 159 ;

Chrysolina (Anopachys) lobicollis: Bourdonne, 2010: 65 (nec Chrysolina lobicollis Fairmaire,

1887). Synonymised with Chrysolina (Anopachys) aurichalcea (Gebler, 1825) by

Bieńkowski, 2019: 50.

Chrysolina (Allohypericia) aeruginosa lobicollis: Bechyné, 1952: 382 .

Chrysomela (Pezocrosita) aeruginosa lobicollis: Mohr, 1966: 101 .

Chrysomela mandarina Achard, 1922: 16 (syntypes – 2♂, ♀, " Chine: Taï-Yuen-Fou", in

NMPC; examined). Synonymised with Chrysomela lobicollis Fairmaire, 1887 by

Bechyné, 1950: 159.

TYPE MATERIAL EXAMINED. Lectotype of Chrysomela lobicollis : ♀ ( Fig. 1 ), with labels ( Fig. 2 ): Chine [p] Pek. [h] / A. DAVID [p, w] | lobicollis / Fairm. [h, w] | C. lobicollis /

Frm. TYPE [h] / J. Achard det. [p] | TYPE [p, r] | COLL. ACHARD / MUS. PRAGENSE [p,

y] | Chrysomela / aeruginosa FALD / MOHR det. 66 [p, w] | LECTOTYPUS / Chrysomela lobicollis / Fairmaire, 1887 / Yu. Mikhailov design. 2020 [p, r] ( NMPC).

REDESCRIPTION. Female (lectotype of Chrysomela lobicollis ). Body convex, ovate,

length - 7.1 mm, width - 5.2 mm. Dorsum shining, smooth, metallic bronze; underside, legs,

antennae, maxillary palpi and tarsi pitchy brown, antennomeres 1 and 2 rufous below.

Head: frontoclypeus covered with sparse coarse punctures; frontal and epicranial sutures slightly deepened. Last maxillary palpomere barrel-shaped, widely truncate apically, 1.3x

longer then broad, not longer and 1.2x wider than previous palpomere. Relative length of antennomeres 1–3 as ratios 8, 5, 6. Tenth antennomere 1.7x longer than broad, eleventh antennomere – 2x. Orbital lines narrow, not reaching antennal insertion. Antenna inserted

1.2x closer to eye than to clypeus.

Thorax: pronotum transverse, 2.3x broader than long, broadest at base; pronotal disc evenly convex, covered with dense medium sized punctures; sides straightly narrowed in basal 2/3 and rounded only at anterior angles; width between anterior angles 1.5x less than basal width. Anterior angles produced, triangular; basal angles acute; anterior side margined and ciliate; basal edge arcuately convex. Lateral sides swollen along entire length, lateral callus narrow, lateral impression moderately deep and filled with coarse punctures partly coalescent in basal half. Prothoracic hypomera slightly convex, smooth, outer side almost flat and covered with wrinkles, basal fold not pronounced; prosternal process almost flat longitudinally, covered with coarse punctures; anterolateral portion of prosternum narrow,

with slightly impressed furrow medially; prosternum 1.35x shorter than metasternum; metasternum 1.1x shorter than first ventrite. Scutellum triangular, smooth.

Elytra with weak humeral callus and flat intervals, each elytron 1.9 times longer than wide,

elytral length 5.7 mm. Primary punctures moderately large, scutellar row quite long, consist of 10 punctures, rows 2-9 regular, paired, punctures spaced at distance mainly twice larger than their diameter. Secondary puncturation consists of fine and medium sized punctures.

Marginal stria with large sparse impressed punctures. Sutural stria distinct at apical slope.

Epipleura inclined outside, visible along entire length. Hind wings absent.

Tarsi narrow, fore tarsi 2.7x as long as broad, ratio of width of fore tarsomeres 1–3 as

1.0, 0.8, 1.2. Tarsomeres 1 of all tarsi with moderately broad glabrous stripe beneath; tarsomeres 2 and 3 of hind tarsi also with glabrous stripe beneath but narrow.

lectotype, male; 4 - labels of lectotype. Scale bars = 2 mm.

Abdomen: pygidium with deep groove along entire length; ventrite 1 broadly margined on anterior edge, covered with sparse medium-sized punctures, only anterior intercoxal process covered with coarse punctures modified into deep longitudinal wrinkles. Last ventrite slightly convex, with slightly incised apex, medially almost impunctate.

REMARKS. Chrysomela lobicollis Fairmaire, 1887 was synonymised with Chrysolina

(Allohypericia) aeruginosa poricollis (Motschulsky, 1860) by Bieńkowski (2001) without examination of any types. Bourdonné (2010) resurrected Chrysomela lobicollis from the synonymy with Ch. aeruginosa poricollis and transferred it to the subgenus Anopachys ,

however, in this note or later he did not give any redescription or figures and did not designate the examined specimen as lectotype. The specimen of Ch. lobicollis (male) from MNHNP

labeled by J.-C. Bourdonné in 2002 as " holotype " was examined by Bieńkowski (2019). In fact this specimen is a syntype, because Fairmaire (1887) did not indicate a number of type specimens. The peculiar aedeagus shape of this syntype proves its position in the subgenus

Anopachys close to Chrysolina aurichalcea .

However, in the collection of NMPC I found another syntype of Chrysomela lobicollis , a female ( Fig. 1 ) that was studied by Bechyné (1950) because he mentioned the data from these labels. For the stability of the nomenclature according to Article 74 of the Code ( ICZN,

1999) and because this has not been done before I designate this specimen as a lectotype of

Chrysomela lobicollis .

The comparison of lectotype of Ch. lobicollis with the representatives of the subgenera

Anopachys and Allohypericia shows that it is exactly belongs to the latter (according to the original intention and taxonomical feeling of J. Bechyné). Having elytra with regular rows of large punctures, dorsum moderately shining and bronzy-black, all tarsomeres 1 with glabrous stripe beneath, pygidium with deep groove along entire length, it can be treated conspecific with Chrysolina aeruginosa (Faldermann, 1835) . This was earlier found by Mohr (1966),

who treated it as a subspecies of Ch. aeruginosa . But from five currently recognized subspecies of Ch. aeruginosa every one can be found in China (Yang et al., 2015; Bieńkowski,

2019). The nominotypical subspecies occurs in North and North-West parts of China, ssp.

chingana Bechyné, 1952, ssp. muralis (Csiki, 1901) and ssp. poricollis (Motschulsky, 1860)

in North-East part of China, and ssp. kabana Lopatin, 2009 in Gansu. The proper revision of these subspecies has never been done and their distribution is not well documented. However,

the preliminary keys to subspecies of Ch. aeruginosa are available (Yang et al., 2015; Bieńkowski, 2019). According to them and the comparison with the lectotype of Taeniosticha poricollis Motschulsky, 1860 in ZMMU I can prove that Chrysomela lobicollis Fairmaire is a synonym of Ch. aeruginosa poricollis (Motschulsky, 1860) .

Figures

Figs 1–4. Habitus in dorsal view and labels of the types. 1, 2 – Chrysomela lobicollis Fairmaire: 1 – lectotype, female; 2 – labels of lectotype; 3, 4 – Ch. pubitarsis Bechynĕ: 3 –