Baltocar, KUSCHEL, 1992

Riedel, Alexander, Rolo, Tomy Dos Santos, Cecilia, Angelica & Kamp, Thomas Van De, 2012, Sayrevilleinae Legalov, a newly recognised subfamily of fossil weevils (Coleoptera, Curculionoidea, Attelabidae) and the use of synchrotron microtomography to examine inclusions in amber, Zoological Journal of the Linnean Society 165 (4), pp. 773-794 : 779

GENUS BALTOCAR KUSCHEL

Baltocar Kuschel, 1992: 197 .

Type species, by original designation: Car succinicus Voss, 1953 .

Differential diagnosis: Mandible as in Figures 17–18 , 46–48 , 59–64 , exodont with three teeth on outer edge; inner edge blunt, convex to tip of apical outer tooth. Forehead ( Figs 42, 52 , 61–62 ) between eyes with deep median furrow; laterally with subtriangular or crescent-shaped callus bordering eye.

Figures

Figures 16–22. Baltocar groehni Riedel sp. nov., holotype: 16, habitus; right side; 17, mouthparts in lateroapical aspect; mandibles are marked with arrows; note axis slanting ventrad; 18, mouthparts in apical aspect; 19, habitus; dorsal aspect; 20, detail of Figure 19; note scutellary strioles; 21, pronotum; dorsal aspect; 22, amber, arrow marking inclusion. Abbreviations: L, labial palps; M, maxillary palps.

Figures 46–48. Baltocar hoffeinsorum Riedel sp. nov., holotype; mouthparts: 46, right side; ventrolateral aspect; 47, left side; dorsolateral aspect; 48, apical aspect. Abbreviations: Lp, labial palp; Md, mandible; Mx, maxilla; Mxp, maxillary palp; Pr, prementum.

Figures 59–66. Baltocar spp., images created by synchrotron microtomography, 59–64: Baltocar groehni Riedel sp. nov., 65–66: Baltocar hoffeinsorum Riedel sp. nov.; Figures 59, 61, 63 are renderings of 3D models created by manual segmentation; remaining images are volume renderings; 59, 60, oblique frontolateral aspect of mouthparts; 61, 62, dorsal aspect of head; 63, 64, frontal aspect of mouthparts; 65, lateral aspect of head and thorax; 66, frontal aspect of head and thorax.

Figures 49–58. Baltocar subnudus Riedel sp. nov., 49–53, 57: male paratype; 54–56, 58: female paratype. 49, left side; 50, right side; 51, left side of elytra; 52, frontal aspect of head; 53, thorax and head; note open notosternal suture and curved rostrum; 54, left side; 55, ventrolateral aspect of right side; 56, amber piece with inclusion of holotype; 57, amber piece with inclusion of paratype; 58, ventrolateral aspect of prothorax and head.