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577 results for “Lucanidae”
Figure 33 in A new genus for the Neotropical species of Aesalus Fabricius, with descriptions of eight new species (Coleoptera: Lucanidae: Aesalinae)
Figure 33. Aesalinae and Trogellus species maximum likelihood best tree from analysis of 18S rDNA and 28S rDNA D2, D3 and D4+D5 expansion regions, 3198 aligned base pairs. Bootstrap percentages for nodes over 50% are indicated above (ML) and below (MP) the subtending branch. Shading indicates two subfamilies of Lucanidae: Lucaninae (green) and Aesalinae (orange). Clades containing each subgenus are indicated with letters: A = Trogellus, B = Mayaesalus, and C = Trogoides. Bar indicates 0.02 nucleotide substitutions per site.
Figure 32 in A new genus for the Neotropical species of Aesalus Fabricius, with descriptions of eight new species (Coleoptera: Lucanidae: Aesalinae)
Figure 32. Distribution of Trogellus species. Subgenera are represented by icon shape, and the line from each name indicates the location of the type locality. Trogellus = triangles: T. herrmanni (green), T. ticiticus (red), and T. neotropicalis (white). Trogoides = squares: T. trogoides (yellow), T. hawksi (orange), T. chapinitus (blue), and T. maesi (white). Mayaesalus = circles: T. narizotus (green), T. catrachitus (red), and T. trifinius (yellow).
Figures 24–30 in A new genus for the Neotropical species of Aesalus Fabricius, with descriptions of eight new species (Coleoptera: Lucanidae: Aesalinae)
Figures 24–30. Male genitalia of Trogellus subgenus Mayaesalus species, dorsal (Fig. 24–26) and right lateral (Fig. 28–30) views. Outlines of genitalia in dorsal view shown to the right of each. 24, 28) T. narizotus, n. sp. 25, 29) T. catrachitus, n. sp. 26, 30) T. trifinius, n. sp.
Figures 15–17. Habitus illustrations. 15 in A new genus for the Neotropical species of Aesalus Fabricius, with descriptions of eight new species (Coleoptera: Lucanidae: Aesalinae)
Figures 15–17. Habitus illustrations. 15) T. herrmanni n. sp., male. 16) T. hawksi n. sp., male. 17) T. narizotus n. sp., male.
Figures 18–23 in A new genus for the Neotropical species of Aesalus Fabricius, with descriptions of eight new species (Coleoptera: Lucanidae: Aesalinae)
Figures 18–23. Male genitalia of Trogellus species, dorsal view. 18. T. herrmanni n. sp. 19) T. ticiticus n. sp. 20) T. neotropicalis. 21) T. chapinitus n. sp. 22) T. hawksi n. sp. 23) T. trogoides. The male genitalia of T. maesi n. sp. are unknown.
Figures 7-10 in A new genus for the Neotropical species of Aesalus Fabricius, with descriptions of eight new species (Coleoptera: Lucanidae: Aesalinae)
Figures 7-10. SEM microscopy of elytral surface and vestiture. 7) Trogellus herrmanni n. sp., acute bristles. 8) T. trogoides, blunt bristles with anterior tubercle, and branched scales. 9) T. trogoides, detail of blunt bristle. 10) T. herrmanni n. sp., detail of branched scales.
Figures 11-14 in A new genus for the Neotropical species of Aesalus Fabricius, with descriptions of eight new species (Coleoptera: Lucanidae: Aesalinae)
Figures 11-14. Leg characters of subgeneric importance. 11) Right protibia of Trogellus herrmanni n. sp. with large triangular teeth (dorsal view). 12) Right protibia of T. trogoides with small peg-like teeth (dorsal view). 13) Left metatibia of T. trogoides showing weak external teeth (ventral view). 14) Left metatibia of T. herrmanni n. sp. showing strong external tooth at middle (ventral view).
Figures 3-6 in A new genus for the Neotropical species of Aesalus Fabricius, with descriptions of eight new species (Coleoptera: Lucanidae: Aesalinae)
Figures 3-6. Trogellus trogoides (Albers). 3) Head, with triangular clypeus, and with arrow indicating ocular canthus. 4) Female habitus. 5) Left metatibia of male showing acute apex (ventral view). 6) Left metatibia of female showing tumid apex (ventral view).
Figures 3–5 in A new species of Platyceroides Benesh (Coleoptera: Lucanidae) from Oregon
Figures 3–5. Dorsal habitus of males of Platyceroides species in the opacus group. 3) P. opacus. 4) P. potax. 5) P. marshalli, n.sp. Figures 6-8. Apex of flagellum of male genitalia of Platyceroides species in the opacus group. 6) P. opacus. 7) P. potax. 8) P. marshalli, n.sp.
Figure 9 in A new species of Platyceroides Benesh (Coleoptera: Lucanidae) from Oregon
Figure 9. County-level distributions of Platyceroides species in the opacus group. Figure 10. Habitat of P. marshalli at the type locality. Photo by C. Marshall.
Figure 4 in Two new species of microdispid mites (Acari: Heterostigmata: Pygmephoroidea) associated with Lucanus ibericus (Coleoptera: Lucanidae)
Figure 4 Neomicrodispus lucani sp. nov., female. A – body in dorsal view, B – body in ventral view, C – Pharyngeal system.
Figure 1 Premicrodispus gorganiensissp. nov., female. A in Two new species of microdispid mites (Acari: Heterostigmata: Pygmephoroidea) associated with Lucanus ibericus (Coleoptera: Lucanidae)
Figure 1 Premicrodispus gorganiensissp. nov., female. A – body in dorsal view, B – body in ventral view, C – pharyngeal system.
Fig. 9 in Two new species of Lucanus Scopoli, 1763 from Yunnan, Southwest China (Coleoptera, Lucanidae, Lucaninae)
Fig. 9. Male habitus of Lucanus derani fukinukiae Katsura et Giang, 2002 from Yunnan, China. a – dorsal view; b – ventral view; c – lateral view. Scale bar = 1.0 cm.
Fig. 10 in Two new species of Lucanus Scopoli, 1763 from Yunnan, Southwest China (Coleoptera, Lucanidae, Lucaninae)
Fig. 10. Male genitalia of Lucanus derani fukinukiae Katsura et Giang, 2002 from Yunnan, China. a – abdominal tergite VIII; b – abdominal sternite VIII; c–e – abdominal segment IX; f–h – aedeagus; (a, d, g – dorsal view; b, c, f – ventral view; e, h – lateral view). Scale bar = 1.0 mm.
Fig. 8 in Two new species of Lucanus Scopoli, 1763 from Yunnan, Southwest China (Coleoptera, Lucanidae, Lucaninae)
Fig. 8. Male genitalia of Lucanus pesarinii Zilioli, 1998 from Vietnam. a – abdominal tergite VIII; b – abdominal sternite VIII; c–e – abdominal segment IX; f–h – aedeagus; (a, d, g – dorsal view; b, c, f – ventral view; e, h – lateral view). Scale bar = 1.0 mm.
Fig. 5 in Two new species of Lucanus Scopoli, 1763 from Yunnan, Southwest China (Coleoptera, Lucanidae, Lucaninae)
Fig. 5. Lucanus zenghuae sp. n., male habitus of holotype. a – dorsal view; b – ventral view; c – lateral view. Scale bar = 1.0 cm.
Fig. 1 in Two new species of Lucanus Scopoli, 1763 from Yunnan, Southwest China (Coleoptera, Lucanidae, Lucaninae)
Fig. 1. Lucanus niu sp. n., male habitus. a–c – large size, holotype; d–f – moderate size, paratype; g–i – small size, paratype; (a, d, g – dorsal view; b, e, h – ventral view; c, f, i – lateral view). Scale bar = 1.0 cm.
Fig. 3 in Two new species of Lucanus Scopoli, 1763 from Yunnan, Southwest China (Coleoptera, Lucanidae, Lucaninae)
Fig. 3. Male habitus of Lucanus vitalisi Pouillaude, 1913 from Yunnan, China. a–c – large size; d–f – moderate size; g–i – small size; (a, d, g – dorsal view; b, e, h – ventral view; c, f, I – lateral view). Scale bar = 1.0 cm.
Fig. 2 in Two new species of Lucanus Scopoli, 1763 from Yunnan, Southwest China (Coleoptera, Lucanidae, Lucaninae)
Fig. 2. Lucanus niu sp. n., male genitalia of holotype. a – abdominal tergite VIII; b – abdominal sternite VIII; c–e – abdominal segment IX; f–i – aedeagus (penis removed in g); (a, d, h: – dorsal view; b, c, f, g: – ventral view; e, i: l– ateral view). Scale bar = 1.0 mm.
The smallest stag beetles (Coleoptera, Lucanidae): hidden paleodiversity in mid-Cretaceous Kachin amber from northern Myanmar
<p>The original figure plates and associated images of the fossil specimens used in the study.</p> <p><strong>Yamamoto, S.</strong> (2023) The smallest stag beetles (Coleoptera, Lucanidae): hidden paleodiversity in mid-Cretaceous Kachin amber from northern Myanmar. <em><strong>Evolutionary Systematics</strong></em>, 7(2): 211–235. (doi: 10.3897/evolsyst.7.104597).</p> <p>URL: <a href="https://evolsyst.pensoft.net/article/104597/">https://evolsyst.pensoft.net/article/104597/</a></p> <p> </p> <p><strong>Abstract</strong></p> <p>The fossil record of stag beetles (Lucanidae), especially in Mesozoic amber, is sparse. Four additional fossil lucanids preserved in mid-Cretaceous Kachin amber from northern Myanmar are here reported. All of these species are included in the primitive subfamily Aesalinae, and have been identified as: <em>Protonicagus mandibularis</em> <strong>sp. nov.</strong> (tribe Nicagini); <em>Cretognathus minutissimus</em> <strong>gen. et sp. nov.</strong> (tribe Ceratognathini); Ceratognathini gen. et sp. indet. 1 (provisional assignment); and Ceratognathini gen. et sp. indet. 2 (provisional assignment). Except for <em>Protonicagus mandibularis</em> <strong>sp. nov.</strong>, the stag beetles appear to be connected to the continent of Gondwana, as with the Kachin amber paleofauna. More interestingly, these species have significantly smaller bodies than the extant species, with three of them measuring less than 3 mm, which makes them the smallest known species of Lucanidae. This finding is congruent with a trend toward miniaturization in several unrelated lineages of Kachin amber beetles, and it shows hidden paleodiversity of stag beetles during the Cretaceous.</p> <p> </p> <p><strong>Key Words</strong></p> <p>Aesalinae, Burmese amber, Cenomanian, Ceratognathini, fossil, Mesozoic, Nicagini, Scarabaeoidea</p>
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