Eurymesosa ventralis (Pascoe, 1865)

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 ventralis (Pascoe, 1865)

Fig. 2A-P

Ereis ventralis Pascoe, 1865: 105 (type locality: “Cambodia”).

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

Mesosa nigromaculata Pic, 1932: 26 (type locality: "Tonkin, Vietnam").

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

Eurymesosa albostictica Breuning, 1962:15 (type locality: "Vientiane, Laos"); Rondon and Breuning 1970: 319, fig. 1b. syn. nov.

Eurymesosa affinis Breuning, 1970: 363 (type locality: “Laos”). syn. nov.

Eurymesosa multinigromaculata Breuning, 1974: 72 (type locality: “Cambodia”). syn. nov.

Type materials examined.

Ereis ventralis Pascoe, 1865: holotype, ♂ (BMNH), Ereis ventralis Typ Pasc (handwritten with black ink on a rectangular white label) / Ereis ventralis Cambodia Pasc (handwritten with black ink on a rectangular white label with a black line under "Cambodia Pasc") / Cambodia (handwritten with black ink on a 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 014596801 plus a QR (quick response) code (printed with black ink on a rectangular white label); examined from five photographs (Fig. 2A-E ). Mesosa nigromaculata Pic, 1932: holotype, ♀ (MNHN), Tonkin (handwritten with black ink on a rectangular white label) / Bien hoa (handwritten with black ink on a rectangular white label) / Mesosa nigromaculata n sp (handwritten with black ink on a rectangular white label) / Mesosa allapsa Pasc. var. (Breuning vid 1935) (handwritten with black ink on a rectangular white label) / M. nigromaculata Pic (handwritten with black ink on a rectangular white label) / TYPE (printed with black ink on a rectangular red label) / Museum Paris Coll. M. Pic (printed with black ink on a rectangular white label with black borders); examined from three photographs (Fig. 2F-H ). Eurymesosa affinis Breuning, 1970: holotype, ♀ (MNHN), Pach Mouhot ( “Pach” handwritten and “Mouhot” printed with black ink on a rectangular white label with a transversal back line in middle) / TYPE (printed with black ink on a rectangular red label) / Eurymesosa affinis mihi Typ Breuning dét. (" Eurymesosa affinis mihi Typ" handwritten and "Breuning dét.” printed with black ink on a rectangular white label) / HOLOTYPE (printed with black ink on a rectangular red label) / HOLOTYPE Eurymesosa affinis Breuning, 1970 (printed with black ink on a rectangular white label) \ MNHN, Paris EC23124 plus a QR (quick response) code (printed with black ink on a rectangular white label); examined from four photographs (Fig. 2I-L ). Eurymesosa multinigromaculata Breuning, 1974: holotype, ♀ (MNHN), Cambodia (handwritten with black ink on a rectangular white label) / MUSEUM PARIS COLL. H.W. BATES 1952 (printed with black ink on a rectangular white label) / Eurymesosa multinigromaculata mihi Typ Breuning dét. (" Eurymesosa multinigromaculata mihi Typ" handwritten and "Breuning dét.” printed with black ink on a rectangular white label) / TYPE (printed with black ink on a rectangular red label) / HOLOTYPE (printed with black ink on a rectangular red label) / HOLOTYPE Eurymesosa multinigromaculata Breuning, 1974 (printed with black ink on a rectangular white label) / MNHN, Paris EC23125 plus a QR (quick response) code (printed with black ink on a rectangular white label); examined from four photographs (Fig. 2M-P ).

Comments.

After comparing the holotypes of E. ventralis (Fig. 2A-D ), E. albostictica (the holotype photograph is available at: http://bezbycids.com/byciddb/wdetails.asp?id=31562&w=o), E. affinis (Fig. 2I-K ) and E. multinigromaculata (Fig. 2M-O ), we found they were identical except for gender and body color. Pascoe (1865) did not mention the body color of Ereis ventralis in the original description, while Breuning (1938) transferred E. ventralis to Eurymesosa and stated that its body color was dark brown; the body color of E. albostictica was dark brown in the original description ( Breuning 1962). The body color of E. affinis and E. multinigromaculata are reddish brown, but Breuning (1974) described the body color of E. multinigromaculata as dark brown in the original description. Perhaps the body color of E. multinigromaculata had faded to reddish brown and similarly for E. affinis .

There is no information in the literature regarding the sex of the holotypes of E. ventralis , M. nigromaculata , E. affinis and E. multinigromaculata , but we could confirm that the holotype of E. ventralis is a male, and the holotypes of M. nigromaculata , E. affinis and E. multinigromaculata are females, based on the description of Eurymesosa provided by Breuning (1938) and referring to other species (antennae are about 1/4 longer than body in females).

Breuning (1938) provided the following localities for E. ventralis (currently E. ventralis + E. allapsa ): "Cambodge; Presqu’ île de Malacca: Penang (PASCOE); Tonkin: Hoa-Binh (collection Pic); Java; Bornéo: Sandakan ( Musée de Dresde)". We verified the localities of E. ventralis across Cambodia, Laos and Vietnam through the examined material (Fig. 2A-P ). However, we could not confirm whether the Java locality mentioned by Breuning (1938) pertains to E. allapsa or E. ventralis ; hence, we omitted the Java locality from the records of E. ventralis .

Distribution.

Cambodia, Laos (Pachbon, Vientane), Vietnam (Hoa-Binh).

Figures

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).