Synommatus leleji Legalov, 2022

Legalov, A. A., 2022, A new species of the genus Synommatus Wollaston, 1873 (Coleoptera: Curculionidae) from the Philippines, Far Eastern Entomologist 462, pp. 1-7 : 2-5

Synommatus leleji Legalov , sp. n.

https://zoobank.org/NomenclaturalActs/ E7B90D9A-F424-48A7-ACFE-BBDBE14857FF

Figs 1–7

TYPE MATERIAL. Holotype – ♂, the Philippines: Mindanao , Sarangani,

Kiamba, III.2016, leg. I. Lumawig ( ISEA). Paratypes: the Philippines: Mindanao ,

Davao del Sur, Kapatangan, IV.2016, 2♂, leg. I. Lumawig; same locality, VIII.2016,

3♀, leg. I. Lumawig; same locality, XI.2016, 1♂, 1♀, leg. I. Lumawig; Mindanao,

Bukidnon, Intavas , IX.2018, 1♂, 1♀ leg. I. Lumawig (all in ISEA) .

DESCRIPTION. MALE. Body length (without rostrum) 2.7–3.1 mm. Rostrum length 0.7–0.8 mm. Body black, with matted pubescence. Antennae, apex of tibiae and tarsi red-brown. Head subconical. Mandibles small. Rostrum quite long, subequal in length to pronotum, about 3.8 times as long as wide at apex, about 3.0 times as long as wide at midlength and at base, evenly curved, sparsely punctate. Apex of rostrum finely punctate. Eyes large, linear, not protruding from contour of head,

contiguous ventrally. Forehead flat, about 0.2 times as long as rostrum base width.

Antennal scrobes directed ventrally to base of rostrum. Antennae inserted near middle of rostrum. Scape quite long, 2.5 times as long as wide in apex, not reaching eye. Funicle 5-segmented. Antennomere 2 subconical, 1.4 times as long as wide in apex, about 0.3 times as long as and about 0.6 times as narrow as scape.

Antennomeres 3–7 wide-conical. Antennomere 3 about 1.1 times as long as wide in frontal view; 3 – aedeagus, dorsal view; 4 – habitus, lateral view. Scale bar for figs 1, 2, 4 –

3

apex, 0.7 times as long as and 0.9 times as narrow as antennomere 2. Antennomeres

4 and 5 subequal in length. Antennomere 4 about 0.4 times as long as wide in apex,

0.4 times as long as and 1.1–1.2 times as wide as antennomere 3. Antennomere 5

about 0.4 times as long as wide, slightly longer than antennomere 4. Antennomere 6

about 0.4 times as long as wide, about 1.3 times as long as and 1.3 times as wide as antennomere 5. Antennal club compact, obliquely truncate, 1.6–1.7 times as long as wide, subequal in length to antennomeres 2–6 combined, with tomentose apex. Pronotum campanulate, 1.5–1.6 times as long as wide at apex, 1.1 times as long as wide at midlength, about 1.2 times as long at pronotal base. Pronotal disk weakly convex same, frontal view; 7 – the same, lateral view. Scale bar –1.0 mm.

dorsally, rugose-punctate, with weak carina in middle. Intervals between points smaller than their diameter. Sides slightly narrowed from apical third towards base.

Maximum width before middle. Base of pronotum slightly narrower than base of elytra. Scutellum small, triangular. Elytra almost suboval with rounded sides, at base about 1.9 times as long as wide, at midlength about 1.4 times as long as wide,

at apical fourth about 2.0 times as long as wide, 1.4 times as long as pronotum.

Humeri weakly flattened. Elytral striae distinct, 1.3–1.5 times as wide as interstriae.

Stria 9 short, fused with stria 10 at level of metacoxae. Interstriae convex, narrow,

distinctly narrower than striae, pilose. Prosternum punctate, without postocular lobes. Precoxal portion of prosternum 1.4–1.5 times as long as procoxal cavity.

Postcoxal portion of prosternum short, about 0.4 times as long as procoxal cavity.

Procoxal cavities contiguous. Mesocoxal cavities narrowly separated. Metanepi-

sternum absent. Metaventrite 2.8–2.9 times as long as length of metacoxa, weakly convex, punctate. Abdomen weakly convex ventrally, punctate. Ventrite 1 subequal to length of metacoxa. Ventrite 2 subequal in length to ventrite 1. Ventrite 3 0.5

times shorter than ventrite 2. Ventrite 4 subequal to ventrite 3. Ventrite 5 about 3.1

times as long as ventrite 4, densely punctate. Pygidium impressed in meddle.

Procoxae subconical. Mesocoxae spherical, narrowly separated. Metacoxae transverse. Femora slightly thickened, without tooth. Metafemora not extending beyond apex of abdomen. Tibiae weakly curved, with large uncus. Tarsi long.

Tarsomeres 1–3 conical, with erect setae ventrally. Tarsomere 5 elongate. Tarsal claws free, divergent.

FEMALE. Body length (without rostrum) 2.7–3.3 mm. Rostrum length 0.8–1.0

mm. Rostrum subequal in length to pronotum, about 4.0 times as long as wide at apex, about 3.6 times as long as wide at midlength and at base. Pronotum about 1.5

times as long as wide at apex, about 1.2 times as long as wide at midlength, 1.2–1.3

times as long at pronotal base. Elytra at base about 2.0 times as long as wide, at midlength about 1.5 times as long as wide, at apical fourth about 2.2 times as long as wide, about 1.8 times as long as pronotum. Andominal ventrites 1 and 2 more convex.

COMPARISION. The new species differs from congeners in the suboval elytra with rounded sides, rugose-punctate pronotum, and the rostrum subequal to pronotum length.

DISTRIBUTION. The Philippines: Mindanao Island.

ETYMOLOGY. The species is named in honor of Arkady S. Lelej (Vladi-

vostok), who contributed to the study of Asian insects.

Figures

Figs 1–4. Synommatus leleji sp. n., holotype, male: 1 – habitus, dorsal view; 2 – the same,

Figs 5–7. Synommatus leleji sp. n., paratype, female: 5 – habitus, dorsal view; 6 – the