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Fig. 19. Posterior legs. A in Systematics of the enigmatic South American Streblopus Van Lansberge, 1874 dung beetles and their transatlantic origin: a case study on the role of dispersal events in the biogeographical history of the Scarabaeinae (Coleoptera: Scarabaeidae)
Fig. 19. Posterior legs. A. Metacoxa of Streblopus opatroides van Lansberge, 1874. Arrow shows the lateral spur present in both sexes of both species. Note also that the spur covers the epipleura and possibly maintains the elytra pressed against the body, thus avoiding loss of water or the entry of sediment beneath the elytra in a similar way to that hypothesized for the metanepisternal tab of the Phanaeini and other tunneller groups (Edmonds 1972; Cupello & Vaz-de-Mello 2016). B‒E. Metafemora and metatrochanters. B‒C. S. opatroides. B. ♂. C. ♀. D‒E. S. punctatus (Balthasar, 1938). D. ♂. E. ♀. Note the strong sexual dimorphism and the many differences between the species.
Fig. 13. Venter. A‒B. Streblopus opatroides van Lansberge, 1874. A. Hypomeron. B in Systematics of the enigmatic South American Streblopus Van Lansberge, 1874 dung beetles and their transatlantic origin: a case study on the role of dispersal events in the biogeographical history of the Scarabaeinae (Coleoptera: Scarabaeidae)
Fig. 13. Venter. A‒B. Streblopus opatroides van Lansberge, 1874. A. Hypomeron. B. Mesoventrite and anterior region of metaventrite. C‒F. Metaventrite and abdomen. C‒D. S. opatroides. C. ♂. D. ♀. E‒F. S. punctatus (Balthasar, 1938). E. ♂. F. ♀. Note in particular the distinction between the species and sexes in the shape of the concavity of the posterior region of the metaventrite.
Fig. 15. Protibiae. A‒D. Dorsal view. A‒B. Streblopus opatroides van Lansberge, 1874. A in Systematics of the enigmatic South American Streblopus Van Lansberge, 1874 dung beetles and their transatlantic origin: a case study on the role of dispersal events in the biogeographical history of the Scarabaeinae (Coleoptera: Scarabaeidae)
Fig. 15. Protibiae. A‒D. Dorsal view. A‒B. Streblopus opatroides van Lansberge, 1874. A. ♂. B. ♀. C‒D. S. punctatus (Balthasar, 1938). C. ♂. D. ♀. E‒H. Ventral view. E‒F. S. opatroides. E. ♂. F. ♀. G‒H. S. punctatus. G. ♂. H. ♀. Notice the many differences between the species and sexes, in particular the presence of a protibial spur in males of S. punctatus (and its absence in S. opatroides) and the different shapes of the spurs and of the lateral teeth in females of the two species.
Fig. 11 in Systematics of the enigmatic South American Streblopus Van Lansberge, 1874 dung beetles and their transatlantic origin: a case study on the role of dispersal events in the biogeographical history of the Scarabaeinae (Coleoptera: Scarabaeidae)
Fig. 11. Labium of Streblopus opatroides van Lansberge, 1874 (left palpus removed). A. Ventral view (aboral surface). B. Dorsal view (oral surface). C. Lateral view. D. Removed left palpus. Note the unusual shape of the palpus, with the basal palpomere remarkably enlarged. Abbreviations: gl = glossa; glf = glossal flap; lbpl = labial palp; lshpx = lateral hypopharyngeal sclerite; mt = mentum; pmts = premental sclerite; shp = suspensorium of hypopharynx; vapmts = ventral angles of premental sclerites.
Fig. 4 in Systematics of the enigmatic South American Streblopus Van Lansberge, 1874 dung beetles and their transatlantic origin: a case study on the role of dispersal events in the biogeographical history of the Scarabaeinae (Coleoptera: Scarabaeidae)
Fig. 4. Distribution of Streblopus van Lansberge, 1874. Note how the two species are widely separated by the vast South American Dry Diagonal stretching between Amazonia and the Atlantic Forest. During several different times over the Neogene, forest corridors connected the two biomes and the populations of Streblopus could move from one to the other. When the forest retreated, the distribution of the genus became relict.
Fig. 10 in Systematics of the enigmatic South American Streblopus Van Lansberge, 1874 dung beetles and their transatlantic origin: a case study on the role of dispersal events in the biogeographical history of the Scarabaeinae (Coleoptera: Scarabaeidae)
Fig. 10. Maxillae of Streblopus opatroides van Lansberge, 1874. A. Dorsal view with extended lacinia. B. Dorsal view. C. Ventral view. Abbreviations: car = cardo; darsgal = dorsal articular sclerite of galea; gal = galea; lac = lacinia; mxpl = maxillary palpus; prcar = articular process of cardo; ss1–4 = stipal sclerite 1–4; varsgal = ventral articular sclerite of galea.
Fig. 6. Head. A‒B. Clypeal process. A. Streblopus opatroides van Lansberge, 1874. B. S in Systematics of the enigmatic South American Streblopus Van Lansberge, 1874 dung beetles and their transatlantic origin: a case study on the role of dispersal events in the biogeographical history of the Scarabaeinae (Coleoptera: Scarabaeidae)
Fig. 6. Head. A‒B. Clypeal process. A. Streblopus opatroides van Lansberge, 1874. B. S. punctatus (Balthasar, 1938). C. Ventral view of head, S. opatroides.
Fig. 8. Labrum. A‒B. Streblopus opatroides van Lansberge, 1874. A in Systematics of the enigmatic South American Streblopus Van Lansberge, 1874 dung beetles and their transatlantic origin: a case study on the role of dispersal events in the biogeographical history of the Scarabaeinae (Coleoptera: Scarabaeidae)
Fig. 8. Labrum. A‒B. Streblopus opatroides van Lansberge, 1874. A. Aboral surface (dorsal view). B. Oral surface (ventral view; epipharynx). C‒D. S. punctatus (Balthasar, 1938). C. Aboral surface. D. Oral surface. Note the many differences between the two species, particularly the much denser and shorter setation of the median area in S. punctatus, the much longer median brush of S. opatroides and the dissimilarities in the shape of the anterior epypharingeal margin. The black arrow shows the anterior margin of the labrum, while the red arrow indicates the anterolateral region. Abbreviations: afr = apical fringe of labrum; ampr = antero-median process of labral suspensorium; lf = lateral files; mbr = medial brush of labrum; pmpr = postero-median process of labral suspensorium; ppm = proplegmatium; ssma = socketed setae of median area; topr = tormal process of labral suspensorium.
Fig. 9 in Systematics of the enigmatic South American Streblopus Van Lansberge, 1874 dung beetles and their transatlantic origin: a case study on the role of dispersal events in the biogeographical history of the Scarabaeinae (Coleoptera: Scarabaeidae)
Fig. 9. Mandibles of Streblopus opatroides van Lansberge, 1874. A‒B. Ventral view. A. Left mandible. B. Right mandible. C. Lateral view of right mandible. Abbreviations: apmm = apodemes of mandibular muscles; cmb = comb of incisor lobe of mandible; conj = conjunctivus of mandible; inlb = incisor lobe of mandible; mac = mandibular acetabulum; molb = molar lobe of mandible.
Fig. 7. Antennae. A. Streblopus opatroides van Lansberge, 1874. B. S in Systematics of the enigmatic South American Streblopus Van Lansberge, 1874 dung beetles and their transatlantic origin: a case study on the role of dispersal events in the biogeographical history of the Scarabaeinae (Coleoptera: Scarabaeidae)
Fig. 7. Antennae. A. Streblopus opatroides van Lansberge, 1874. B. S. punctatus (Balthasar, 1938). Note the differences between the two species concerning the colour of the apical flagellomeres and the number and shape of the articles. In S. punctatus, the suppression of arthrogenesis between ancestral articles III and IV has resulted in a reduction of the total number of antennomeres from 9 to 8.
Fig. 2 in Systematics of the enigmatic South American Streblopus Van Lansberge, 1874 dung beetles and their transatlantic origin: a case study on the role of dispersal events in the biogeographical history of the Scarabaeinae (Coleoptera: Scarabaeidae)
Fig. 2. Geographical variation in Streblopus opatroides van Lansberge, 1874. Individuals from a few localities in southeast Bahia (Maraú and Uruçuca) have a different ventral colouration from individuals belonging to other populations, being much darker and not showing the typical red metallic colouration seen in specimens from other localities in Bahia and Espírito Santo.
Fig. 5. Head. A‒D. Dorsal view. A‒B. Streblopus opatroides van Lansberge, 1874. A in Systematics of the enigmatic South American Streblopus Van Lansberge, 1874 dung beetles and their transatlantic origin: a case study on the role of dispersal events in the biogeographical history of the Scarabaeinae (Coleoptera: Scarabaeidae)
Fig. 5. Head. A‒D. Dorsal view. A‒B. Streblopus opatroides van Lansberge, 1874. A. ♂. B. ♀. C‒D. S. punctatus (Balthasar, 1938). C. ♂. D. ♀. Note how the emargination of the apex of the clypeus varies between the species and sexes, being greater in males of S. opatroides than in males of S. punctatus and females of both sexes. E‒F. Lateral view. E. S. opatroides. F. S. punctatus. Red arrow indicates the canthus. Observe that the canthus is much longer in S. opatroides than in S. punctatus.
Figure 2. Heterospio longissima Ehlers, 1874 in First record of Longosomatidae (Annelida: Polychaeta) from Iceland with a worldwide review of diagnostic characters of the family
Figure 2. Heterospio longissima Ehlers, 1874 sensu Hartman (1965). Specimens from BIOICE samples 2414 and 2474. (A, B) Anterior end, dorsal and lateral views; (C) fan-like chaetal disposition in neuropodium of short anterior CH9; (D) flange-like chaetal disposition in neuropodium of elongated CH10. b1–7, branchial scars 1–7; CH2–11, chaetigers 2–11; no, nuchal organ; cc, capillary chaeta; su, subuluncini. Scale bars: A, B, 1mm; C, 45 µm; D, 30 µm.
FIGURE 34 in A revision of Nearctic species of the genus Earota Mulsant & Rey, 1874 (Coleoptera: Staphylinidae: Aleocharinae)
FIGURE 34. Geographical distribution of Earota dentata (Bernhauer) ().
FIGURE 19. Lycaea pulex Marion, 1874 in A review of the families and genera of the superfamily PLATYSCELOIDEA Bowman & Gruner, 1973 (Crustacea: Amphipoda: Hyperiidea), together with keys to the families, genera and species
FIGURE 19. Lycaea pulex Marion, 1874, male (9.0 mm), Tasman Sea, SAMA C5282. Scale bar = 0.5 mm.
FIGURE 5 in Rediscovery of Phrynopus peruanus Peters 1874 (Amphibia, Anura, Leptodactylidae)
FIGURE 5. Habitat of Phrynopus peruanus.
FIGURE 2 in Rediscovery of Phrynopus peruanus Peters 1874 (Amphibia, Anura, Leptodactylidae)
FIGURE 2. Dorsal (A) and ventral (B) views of male Phrynopus peruanus (MHNSM 19978, SVL 22.5 mm).
FIGURE 3 in Rediscovery of Phrynopus peruanus Peters 1874 (Amphibia, Anura, Leptodactylidae)
FIGURE 3. Dorsal (A) and ventral (B) views of female Phrynopus peruanus (MHNSM 19977, SVL 27.5 mm).
FIGURE 14 in Review of the genus Petropedetes Reichenow, 1874 in Central Africa with the description of three new species (Amphibia: Anura: Petropedetidae)
FIGURE 14. Typical dorsal pattern in Petropedetes juliawurstnerae sp. nov. (ZFMK 68170):
FIGURES 1–2. Forewing. 1–2 in Revision of Eupsenella Westwood, 1874 (Hymenoptera, Bethylidae)
FIGURES 1–2. Forewing. 1–2 Eupsenella barada sp. nov.; 1. Cells of forewing. 2. Veins of forewing.
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