Eurymesosa allapsa (Pascoe, 1866), stat. resurr.

Huang, Gui-Qiang, Xu, Ling-Rui, Zhou, Xian & Zhang, Gui-Mei, 2024, A revision of the genus Eurymesosa Breuning, 1938 (Cerambycidae, Lamiinae, Mesosini), ZooKeys 1193, pp. 111-123 : 111

Eurymesosa allapsa (Pascoe, 1866), stat. resurr.

Fig. 1A-I

Mesosa allapsa Pascoe, 1866: 231 (type locality: "Penang, Malaysia").

Eurymesosa ventralis m. Eurymesosa ventralis allapsa : Breuning 1938: 391; Breuning 1959: 49 (catalogue).

Type material examined.

Holotype, ♂ (BMNH), Mesosa allapsa Typ Pasc (handwritten with black ink on a rectangular white label) / Mesosa allapsa Penang Pasc. (handwritten with black ink on a rectangular white label with a longitudinal black line at left side) / Penang (handwritten with black ink on an olive-green label) / Pascoe Coll. 93-60. (printed with black ink on a rectangular white label) / Type (printed with black ink on a circular white label with circular red borders) / NHMUK 014596800 plus a QR (quick response) code (printed with black ink on a rectangular white label); examined from five photographs (Fig. 1A-E ).

Additional materials examined.

1 ♀ (CFV), Mt. Bawang , Kalimantan, Borneo, Indonesia, II.2018, leg. local collector; examined from four photographs (Fig. 1F-I ) . 3 ♀♀ (CDJH), all from Sabah ( Crocker Range , 18.III.1999; Mt. Trus-Madi , 14.IV.2001; Ranau, 17.II.2005), Borneo, Malaysia, leg. local collectors . 1 ♂ (CDJH), Tawau , Sabah, Borneo, Malaysia, 1.V.2016, leg. local collector .

Description of female.

Similar to male, but with the body length: 14.0-15.4 mm (4 specimens). One of the specimens (Fig. 1F-I ), body length: 15.4 mm, antennae 1.28 times as long as body, length (mm) of each antennomere: scape = 3.4, pedicel= 0.4, III = 3.8, IV= 2.7, V = 2.0, VI = 1.5, VII = 1.4, VIII = 1.2, IX = 1.2, X= 1.1, X I = 1.0; elytra 1.6 times as long as wide.

Comments.

After exposing the lateral lobes of the tegmen (Fig. 1C ), it was possible to confirm that the holotype of M. allapsa is a male. Breuning (1938) treated M. allapsa as an infraspecific variation or morph of E. ventralis based on the character "The two dark brown postmedian disc spots on each elytron are joined by a single larger spot". After comparing the holotypes of the above two species (Figs 1A-D , 2A-D ), we found that M. allapsa can be clearly distinguished from E. ventralis by the following characters: the pubescent bands on the vertex are brown with light pink border (pubescent bands on vertex are yellowish brown for E. ventralis ), each elytron covered with patchy dark brown maculae in basal half, with a single large irregular black spot behind middle, with patchy dark brown maculae in middle and near apical 1/4 (each elytron covered with patchy yellowish-brown maculae in basal half, with several small irregular black spots behind middle, with patchy yellowish-brown maculae in middle and near apical 1/4 for E. ventralis ), femora, apical 2/3 of tibiae and dorsum of two basal joints and last joint of tarsi covered with short light pink pubescence (femora, apical 2/3 of tibiae and dorsum of two basal joints and last joint of tarsi covered with short yellowish-brown pubescence for E. ventralis ). We thus resurrect M. allapsa and decide to keep it in the genus Eurymesosa .

Distribution.

Malaysia (Penang, Sabah), Indonesia (Kalimantan).

Figures

Figure 1. A-I Eurymesosa allapsa A-E Mesosa allapsa, holotype A male, dorsal habitus B male, lateral habitus C male, ventral habitus D male, frontal view E labels (photographs A-E were taken by Guang-Lin Xie) F-I Eurymesosa allapsa, female F dorsal habitus G lateral habitus H ventral habitus I frontal view (photographs F-I were taken by Francesco Vitali).

Figure 2. A-P Eurymesosa ventralis A-E Ereis ventralis, holotype A male, dorsal habitus B male, lateral habitus C male, ventral habitus D male, frontal view E labels (photographs A-E were taken by Guang-Lin Xie) F-H Mesosa nigromaculata, holotype F female, dorsal habitus G female, lateral habitus H labels (photographs F-H were taken by Xavier Gouverneur) I-L Eurymesosa affinis, holotype I female, dorsal habitus J female, lateral habitus K female, ventral habitus L labels M-P Eurymesosa multinigromaculata, holotype M female, dorsal habitus N female, lateral habitus O female, ventral habitus P labels (photographs I-P were taken by Christophe Rivier).