Solomonocartus bukejsi Legalov, 2021

Legalov, Andrei A., 2021, A new genus of the tribe Rhinocartini (Coleoptera, Rhynchitidae) from the Solomon Islands, Ecologica Montenegrina 49, pp. 54-58 : 55-57

Solomonocartus bukejsi Legalov , sp. nov.

http://zoobank.org/ urn:lsid:zoobank.org:act:A0F91C3C-B3F0-46FD-B79F-017AC2E6A0F6

( Figs. 1-2 )

Type material: Holotype, female ( ISEA), South Pacific, Solomon Is., Guadalcanal I., Honiara reg., Barana vill. env., 100-300 m, XI.-XII.2018, St. Jakl leg. Paratypes, 3 females ( ISEA), idem .

Description

Female. Body yellow, usually elytra partially black, covered with appressed yellowish hairs. Antennae and claws black-brown. Rostrum long, slightly longer than pronotum, 3.2-3.4 times as long as wide at apex, 4.9-5.3 times as long as wide at middle and 2.1-2.5 times as long as wide at base, curved, finely punctate, expanded to apex. Eyes large, convex, round, finely fused. Forehead weakly convex, slightly narrower than width of rostrum basally, finely punctate. Temples long, equal in length to eye. Vertex convex, finely transversely wrinkled. Head subparallel behind eyes. Antennae long, inserted in basal third of rostrum, almost reaching middle of elytra. Antennomeres 1 and 2 suboval. Antennomere 1 3.0 times as long as wide in apex. Antennomere 2 1.5 times as long as wide, about 0.3 times as long as and about 0.7 times as narrow as antennomere 1. Antennomeres 3-8 long-conical. Antennomere 3 about 11.5 times as long as wide, about 7.7 times as long as and equal in wide to antennomere 2. Antennomeres 4 and 5 equal. Antennomere 4 about 6.7 times as long as wide, about 0.5 times as long as and slightly narrower than antennomere 3. Antennomeres 6-8 equal in width. Antennomere 6 about 7.7 times as long as wide, slightly shorter and about 0.8 times as narrow as antennomere 5. Antennomere 7 6.7 times as long as wide, about 0.9 times as long as antennomere 6. Antennomere 8 about 5.3 times as long as wide, 0.8 times as long as antennomere 7. Antennal club not compact. Antennomere 9 about 1.7 times as long as wide, 0.5 times as long as and about 1.5 times as wide as antennomere 8. Antennomere 10 about 2.0 times as long as wide, about 1.1 times as long as and equal in width to antennomere 9. Antennomere 11 about 4.7 times as long as wide, about 1.6 times as long as and about 0.7 times as narrow as antennomere 10. Pronotum campanulate, 1.5-1.6 times as long as wide at apex, about 0.9 times as long as wide in middle and about 1.1 times as long as wide at base, with almost straight sides. Disk weakly flattened, finely punctate. Scutellum trapezoid, finely punctuate, equal in length and width. Elytra 1.4-1.6 times as long as wide at base, 1.4-1.5 times as long as wide at middle, 2.2 times as long as wide at apical fourth, 2.1-2.4 times as long as pronotum. Humeri slightly flattened. Elytral striae weak. Scutellar striole indistinct. Interstriae flattened, wide, finely punctuate, 3.0-3.5 times as wide as striae. Prosternum finely punctate. Precoxal portion of prosternum quite long, about 0.7 times as long as procoxal cavity length. Postcoxal portion of prosternum short, about 0.3 times as long as procoxal portion. Procoxal cavities contiguous. Metanepisternum about 3.6 times as long as wide, finely punctate. Metaventrite about 1.3 times as long as length of metacoxa, weakly convex, punctate. Abdomen convex, finely punctate. Ventrite 1 about 0.8 times as long as length of metacoxa. Ventrite 2 2.0 times as long as ventrite 1. Ventrite 3 0.6 times as long as ventrite 2. Ventrite 4 about 0.6 times as long as ventrite 3. Ventrite 5 about 1.3 times as long as ventrite 4. Procoxae large, conical. Metacoxae transverse. Femora weakly thickened. Tibiae almost straight, flattened, with apical spurs, without costate dorsal margin and without mucro. Tarsi long. Tarsomere 1 long-conical. Tarsomere 2 wide-conical. Tarsomere 3 bilobed. Tarsomere 5 elongate. Tarsal claws slightly divergent and dentate. Total body length (without rostrum) 5.5- 6.0 mm. Length of rostrum 1.9-2.1 mm.

Etymology. The species is named in honor of Dr. Andris Bukejs (Daugavpils).

Localisation. Guadalcanal I. (Solomon Is.) ( Fig. 3 ).

Figures

Figure 1. Solomonocartus bukejsi sp. nov., female, holotype: a – body, dorsally, b – body, ventrally; c – body laterally. Scale bar = 1.0 mm.

Figure 2. Solomonocartus bukejsi sp. nov., female, paratype, body, dorsally. Scale bar = 1.0 mm.

Figure 3. Distribution of Rhinocartini: circle – Rhinocartus tessmanni, star – Proteugnamptus hovanus, octagon – Solomonocartus bukejsi sp. nov.