Glenea vestalis Heller, 1934

Glenea vestalis Heller, 1934 View in CoL stat. reinstated

( Figures 19–25 View Figures 19–22 View Figures 23–25 )

Glenea vestalis Heller, 1934: 284 View in CoL , Figure 2 View Figures 1–3 . TL: Philippines. TD: SMTD.

Glenea pulchella: Aurivillius 1926: 111 View in CoL (partim).

Glenea ( Glenea) pulchella: Breuning 1956a: 195 View in CoL (partim).

Glenea ( Glenea) pulchella m. postmediopunctata Breuning, 1956a: 196 View in CoL . [Unavailable name, infrasubspecies from Tonkin, Vietnam]

Glenea ( Glenea) pulchella m. preapiceconjuncta Breuning, 1956a: 197 View in CoL . [Unavailable name, infrasubspecies from Ceram, Indonesia]

Glenea ( Glenea) pulchella m. transversevittata Breuning, 1956a: 197 View in CoL . [Unavailable name, infrasubspecies from Fundortangabe]

Glenea ( Glenea) pulchella m. vestalis: Breuning 1956a: 197 View in CoL .

Glenea ( Glenea) pulchella: Hüdepohl 1996: 18 View in CoL . [Misidentification]

Type specimen examined

Holotype ( Figure 19 View Figures 19–22 (a–c)), ♀, Philippines, Arorey, 1923.VIII ( SMTD).

Other Specimens examined

Philippines: 1 ♂, ‘paratype’ of Glenea ( Glenea) pulchella m. postmediopunctata Breuning, 1956 , Dapitan, Mindanao , Baker ( MHNL, ex collection P. Lepesme); 1 ♂, ‘paratype’ of Glenea ( Glenea) pulchella m. postmediopunctata Breuning, 1956 , Zamboanga, Mindanao, Baker ( MHNL, ex collection P. Lepesme); 1 ♀, ‘paratype’ of Glenea ( Glenea) pulchella m. postmediopunctata Breuning, 1956 , Surigao, Mindanao , Baker ( NHMB (Frey)); 1 ♂, Philippines ( BMNH); 1 ♂, 2 ♀♀, Zamboanga Mindanao, Baker ( NMNH); 2 ♀♀, Island Samar, Baker ( NMNH); 4 ♂♂, 2 ♀♀, Kolambugan, Mindanao , Baker ( NMNH); 1 ♂, 1 ♀, Davao Mindanao, Baker ( NMNH); 2 ♂♂, 2 ♀♀, Mt. Makiling, Luzon, Baker ( NMNH); 2 ♂♂, 4 ♀♀, Dapitan, Mindanao , Baker ( NMNH); 1 ♂, 1 ♀, Butuan Mindanao, Baker ( NMNH); 1 ♀, Surigao, Mindanao ( NMNH, Tippmann Coll . ’57, 213112); 2 ♀♀, Philippines, Ch Semper ( MNHN); 1 ♂, Mindanao ( Figure 20 View Figures 19–22 (a,b), MNHN); 3 ♀♀, Mindanao, 1903–1904, J. Waterstradt ( MNHN); 1 ♀, Philippines, N. Luzon, Cagayan, Sta. Ana , June 2014, local coll. ( DHCO).

Malaysia

1 ♀, Java ( Meuwen Bay ) ( MNHN); 2 ♀♀, ‘paratypes’ of Glenea ( Glenea) pulchella m. preapiceconjuncta Breuning, 1956 , Borneo , Sandakan , Baker ( NHMB (Frey)); 1 ♀, Malacca, Perak, W. Doherty ( MNHN).

Indonesia

1 ♀ ( Figure 21 View Figures 19–22 (a,b)), ‘type’ of Glenea ( Glenea) pulchella m. preapiceconjuncta Breuning, 1956 , Moluccas, Ceram (= Moluques, Seram) ( BMNH, ex Fry Coll, 1905.100); 1 ♀, Maluku, Seram, 35 km E Pasahari, Unit O, 24–30 October 1998, leg. J. Horák ( DHCO) .

Vietnam

1 ♀ ( Figure 22 View Figures 19–22 (a,b)), ‘type’ of Glenea ( Glenea) pulchella m. postmediopunctata Breuning, 1956 , Tonkin, Hoa-Binh, A. de Cooman ( MHNL, ex Coll. Lepesme, 2002, ex Coll. J. Clermont) .

Description complementary to Heller (1934) and Breuning (1956a).

Male genitalia ( Figures 23–24 View Figures 23–25 )

Tegmen length about 3.5 mm; lateral lobes extremely long and slender, each about 1.8 mm long and 0.05 mm wide, apex covered with short, reddish brown setae; basal piece bifurcated distally; median lobe plus median struts slightly curved, much shorter than tegmen (22:35); median struts about two-thirds of whole median lobe in length; dorsal plate slightly shorter than ventral plate; ventral edge of median orifice slightly pointed; median foramen elongated; internal sac about 3 times as long as median lobe plus median struts, with four pieces of basal armature and three rods; rods about 1.0 mm, shorter than one-third of tegmen. Tergite VIII elongate, U-shaped with its apical margin weakly notched in middle, integument with short setae. Ventrite IX subequal to ringed part of tegmen in length.

Female genitalia ( Figure 25 View Figures 23–25 ): Spermatheca elongate, with its stalk curved at base and capsule oval. Spermathecal gland originating from a distinctly sclerotised ringed plate ( Figure 25 View Figures 23–25 ). Tignum much longer than abdomen. In our observation, tignum 8.5 mm for an adult with a 5.3 mm long abdomen in ventral view.

Diagnosis

This species is very similar to G. pulchella Pascoe at first glance, with body reddish brown and similar yellow-haired maculae. However, they differ from each other in the absence vs presence of the small spot at the centre of apical half. Male genitalia exhibit distinct differences also: lateral lobes shorter than half of tegmen and apex of tergite VIII truncated in G. pulchella ( Figures 15 and 16 View Figures 15–18 ) vs lateral lobes subequal to half of tegmen and apex of tergite VIII weakly notched at middle in G. vestalis ( Figures 23 and 24 View Figures 23–25 ).

Distribution

Philippines, Malaysia, Indonesia, Vietnam.

Remarks

Breuning (1956a) treated G. vestalis as a morph of G. pulchella , and subsequent authors considered them synonyms ( Hüdepohl 1996; Tavakilian and Chevillotte 2020). However, they are two distinct species, and G. vestalis is herein reinstated from synonymy with G. pulchella .

Aurivillius (1926: 111) wrote: ‘Specimens from Mindanao have a small sulphur yellow lateral dot behind the middle of elytra; this dot is wanting in specimens from Borneo and Malacca but still more developed in a specimen from Ceram’. Examination of specimens from these localities by the second author revealed that specimens referred to as having a ‘small sulphur yellow lateral dot’ behind the middle of the elytra, from Philippines and Ceram (now Indonesia, Maluku, Seram), are G. vestalis , while the specimens from Borneo and Malacca, in which ‘this dot is wanting’, are G. pulchella .

Breuning (1956a) described three morphs, which are all infrasubspecific. The second author examined the ‘type’ and ‘paratypes’ of these morphs; the ‘type’ of Glenea ( Glenea) pulchella m. preapiceconjuncta Breuning, 1956 ( Figure 21 View Figures 19–22 (a,b)) from ‘ Insel Ceram im Britischen Museum’, and the ‘type’ of Glenea ( Glenea) pulchella m. postmediopunctata Breuning, 1956 ( Figure 22 View Figures 19–22 (a,b)) from ‘ Tonkin: Hoa-Binh in coll. Lepesme’ are both females and are both considered Glenea vestalis Heller, 1934 based on the presence of a postmedial, sulphur yellow lateral dot on the elytra. The ‘type’ of Glenea ( Glenea) pulchella m. transversevittata Breuning, 1956, based on ‘ein female ohne Fundortangabe in der Sammlung Itzinger’, could not be examined; however, in all probability it belongs to G. vestalis , since Breuning (1956a: 197) compared it with m. postmediopunctata and arranged it between m. preapiceconjuncta and m. vestalis Hell.