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FIGURE 3 in Redescription of two species and proposal of a new synonym in the genus Mycotretus Lacordaire, 1842 (Coleoptera: Erotylidae: Tritomini)
FIGURE 3. (A–D) Mouthparts of a male Mycotretus chilensis Crotch, 1876 from Viçosa (MG, Brazil) (A) labrum; (B) mandibles; (C) right maxilla; (D) labium. (E–G) Mouthparts of a male M. trifasciatus from Viçosa (MG, Brazil), (E) labrum; (F) mandibles; (G) left maxilla. (H) labium of a male M. trifasciatus from Canela (RS, Brazil), with separated mentum plate. Scale bars: A–H = 0.1 mm.
FIGURE 2 in Redescription of two species and proposal of a new synonym in the genus Mycotretus Lacordaire, 1842 (Coleoptera: Erotylidae: Tritomini)
FIGURE 2. Adult Mycotretus trifasciatus Guérin, 1956: A–C holotype of M. trifasciatus from Nova Teutônia (SC, Brazil), (A) dorsal view, with black arrows showing yellowish-brown coloration, big white arrow showing a scutellar bilobed and elongate black spot, small white arrow showing a spot close to the humerus, red arrow showing a prominent "pick" at middle of the first band; (B) lateral view; (C) labels. D–F M. trifasciatus from Viçosa (MG, Brazil), (D) dorsal view, with arrow showing the scutellar spots reaching the anterior edge of elytra; (E) lateral view; (F) ventral view, with white arrow showing discrimen. (G) female M. trifasciatus from Obidos (PA, Brazil), arrow showing yellowish-brown coloration. (H) female M. trifasciatus from Viçosa (MG, Brazil). (I) male paratype of M. trifasciatus from Nova Teutônia (SC, Brazil). Scale bars: A–B, D–F, H–I = 0.5 mm, G = 1 mm.
FIGURE 1. Adult Mycotretus chilensis Crotch, 1876 in Redescription of two species and proposal of a new synonym in the genus Mycotretus Lacordaire, 1842 (Coleoptera: Erotylidae: Tritomini)
FIGURE 1. Adult Mycotretus chilensis Crotch, 1876: A–C lectotype from Chile (doubtful record), (A) dorsal view, with arrow showing anterior pronotal band; (B) lateral view; (C) labels. D–F male M. chilensis Crotch, 1876 from Viçosa (MG, Brazil), (D) dorsal view, with arrow showing anterior pronotal band; (E) lateral view; (F) white arrow showing discrimen. G–I holotype of M. bicinctus (syn. n. of M. chilensis) from Cantareira (SP, Brazil). This color pattern was observed in most females, (G) dorsal view, with arrow showing the first black band reaching the anterior edge of elytra close to scutellar shield; (H) lateral view; (I) labels. Scale bars: A = 1 mm, D–F, G–H = 0.5 mm.
FIGURE 4 in Redescription of two species and proposal of a new synonym in the genus Mycotretus Lacordaire, 1842 (Coleoptera: Erotylidae: Tritomini)
FIGURE 4. (A–D) Parts of thorax of Mycotretus chilensis Crotch, 1876 from different localities, (A) female, pronotum showing punctation; (B) male, longitudinal elytral striae; (C) pair of secretory pores on prosternal process; (D) metendosternite, red arrow showing central sclerotization of the anterior processes, big black arrow showing central sclerotization of the stalk, small black arrows showing inner outline of laminae. (E–I) parts of thorax of M. trifasciatus from different localities, (E) male, pronotum showing punctation; (F) longitudinal elytral striae in two specimens; (G) pair of secretory pores on prosternal process; (H) and (I) metendosternites of two specimens, red arrow showing central sclerotization of the anterior processes, big black arrow showing central sclerotization of the stalk, small black arrows showing inner outline of laminae. Scale bars: A–B and F = 0.5 mm, C–D and G–I = 0.1 mm, E = 1 mm.
FIGURE 8. Distribution map for Mycotretus chilensis Crotch, 1876 in Redescription of two species and proposal of a new synonym in the genus Mycotretus Lacordaire, 1842 (Coleoptera: Erotylidae: Tritomini)
FIGURE 8. Distribution map for Mycotretus chilensis Crotch, 1876 (green diamonds) and M. trifasciatus Guérin, 1956 (red circles). The blue question mark indicates the doubtful record of M. trifasciatus from northern Brazil. The black question mark indicates the doubtful record of M. chilensis from Chile.
FIGURE 6 in Redescription of two species and proposal of a new synonym in the genus Mycotretus Lacordaire, 1842 (Coleoptera: Erotylidae: Tritomini)
FIGURE 6. (A–D) male terminalia of a paratype of Mycotretus trifasciatus Guérin, 1956 from Cerro Azul (PR, Brazil), (A) penis (pen), flagellum (fla), apophyses (apo), with arrow showing the median sinuosity of flagellum; (B) detail of the sinuosity, with arrow showing a sclerotization not observed in M. chilensis; (C) tegmen, with arrow showing parameres; (D) tergite IX and segment X, with arrow showing anteroventral edge of segment IX. (E) female genitalia of a paratype of M. trifasciatus from Rio Vermelho (SC, Brazil), with arrows showing the gonostyli; (F) female genitalia of a M. trifasciatus from Obidos (PA, Brazil), with red arrows showing gonocoxites; (G) female genitalia of a M. trifasciatus from Viçosa (MG, Brazil), with black arrow showing the spermatheca and red arrow showing an expanded portion of the bursa copulatrix; (H) spermatheca of a paratype of M. trifasciatus from Rio Vermelho; (I) sternite VIII with a median strut (arrow) of a paratype of M. trifasciatus from Rio Vermelho. Scale bars: A–G and I = 0.5 mm, H = 0.1 mm.
Fig. 40. Taschenberg specimens. B–D, F in Catalogue of Mycotretus Lacordaire, 1842 (Coleoptera: Erotylidae: Tritomini): an annotated, illustrated and historical approach
Fig. 40. Taschenberg specimens. B–D, F. Primary types (dorsal, labels). A–A'. Specimen of Mycotretus bicolor Taschenberg, 1870 from Alvarenga collection (MNRJ, Brazil). B–B'. Lectotype of M. coccinelloides Taschenberg, 1870 [synonym of Mycomystes apicalis (Lacordaire, 1842)]. C–C'. Lectotype of M. dimidiatus Taschenberg, 1870. D–D'. Lectotype of M. discoidalis Taschenberg, 1870 [synonym of Mycomystes melanophthalmus (Duponchel, 1825)]. E–E'. Specimen of M. dispar Taschenberg, 1870 from the Alvarenga collection (MNRJ, Brazil). F–F'. Lectotype of M. multimaculatus Taschenberg, 1870. Scale bars: A = 0.5 mm; E = 1 mm; B–D, F = see Material and methods.
Fig. 38. A–B, D–F in Catalogue of Mycotretus Lacordaire, 1842 (Coleoptera: Erotylidae: Tritomini): an annotated, illustrated and historical approach
Fig. 38. A–B, D–F. Mader primary types (dorsal, labels). A–A'. Holotype of Mycotretus antesignatus Mader, 1942 [= Mycolybas antesignatus (Mader) comv. nov.]. B–B'. Holotype of M. cunctans Mader, 1942. C–C'. M. quadripunctatus ab. luteobifasciatus Mader, 1942 (invalid name). D–D'. Holotype of M. major Mader, 1955. E–E'. Holotype of M. opalizans Mader, 1942. F–F'. M. opalizans ab. posticenigrum Mader, 1942 (invalid name). Scale bars: A, C–F = 1 mm; B = 2 mm.
Fig. 37 in Catalogue of Mycotretus Lacordaire, 1842 (Coleoptera: Erotylidae: Tritomini): an annotated, illustrated and historical approach
Fig. 37. Lacordaire primary types (dorsal, labels) cont. A–A'. Lectotype of Mycotretus silaceus (Lacordaire, 1842). B–B'. Lectotype of M. singularis Lacordaire, 1842. C–C'. Holotype of M. terminalis Lacordaire, 1842. D–D'. Lectotype of M. tigratus Lacordaire, 1842. E–E'. Lectotype of M. trabeatus Lacordaire, 1842. F–F'. Lectotype of M. xanthosomus Lacordaire, 1842. Scale bars = 1 mm.
FIGURE 7 in Redescription of two species and proposal of a new synonym in the genus Mycotretus Lacordaire, 1842 (Coleoptera: Erotylidae: Tritomini)
FIGURE 7. Host fungi, (A–C) Lentinus brumalis, basidiomes from Viçosa (MG, Brazil); (D) Two male specimens of M. chilensis on a basidiome of Lentinus brumalis from Viçosa (MG, Brazil); (E) One female M. trifasciatus on a basidiome of Lentinus tricholoma from Viçosa (MG, Brazil); (F) Mycena sp. basidiomes from Viçosa (MG, Brazil). Scale bars: A–B = 5 mm.
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