Euops (Metaeuops), Legalov

Riedel, Alexander, 2006, Revision of the subgenus Metaeuops Legalov of Euops Schoenherr (Coleoptera, Curculionoidea, Attelabidae) from the Papuan region, Zootaxa 1181 (1), pp. 1-102 : 10-12

Key to the males of Metaeuops Legalov

Note: The male of E. violaceus is unknown and is not included in this key.

1 Procoxa externally with dorsally projecting spine; foreleg as in Fig. 75 . Metatibia larger than mesotibia, with greatly enlarged lateral surface ( Fig. 20 ) .......... 2

1´Procoxa without dorsally projecting spine; foreleg as in Fig. 73 or 74. Metatibia of similar size as mesotibia ................................................................................. 3

2 (1) Tergite VIII apically with distinct notch. TA as in Figs 87, 89 ; flagellum usually longer; sclerite­complex at base of flagellum in repose at angle (45°–90°) with apodeme of aedeagus; median sclerite shorter. Apical scoop of pedon as in Fig. 160 , apex with median extension. ............................................. tibialis Voss

2´Tergite VIII apically subtruncate, very weakly concave. TA as in Figs 88, 90 ; flagellum usually shorter; median sclerite at base of flagellum elongate, in repose subparallel with apodeme of aedeagus. Apical scoop of pedon subtriangular, without distinct median extension ( Fig. 162 ). ................ paratibialis sp. n.

3 (1´) Gestalt elongate ( Fig. 12 ), head as in Fig. 37 . Outline of profemur subtriangular ( Fig. 74 ). Mesotibia subapically with inconspicuous posteriad directed lobe ( Fig. 77 ), overall shape of mesotibia not subtriangular................. curvipes sp. n.

3´Gestalt more compact ( Figs 1–11, 13–18 ), head shorter ( Figs 26–36, 38–41 ). Outline of profemur clavate, but not subtriangular ( Fig. 73 ). Overall shape of mesotibia subtriangular, dorsally before apex with subangulate lobe (as in Fig. 76 ) .............................................................................................................. 4

4 (3´) Pygidium microreticulate throughout, densely punctate. Coloration uniformly piceous except scutellum, anterior surface of procoxa and a narrow band at base of pygidium golden........................................................................... piceus sp. n.

4´Pygidium at most in basal half microreticulate, apically shining. Coloration different, usually largely metallic blue to green or ferruginous ............................. 5

5 (4´) Aedeagus without area of centripetally directed setae between endophallic sclerites; either with similar denticles as in more apical portion of endophallus ( Figs 110–111 116 ), or with scattered undirected setae ( Fig. 118 ) ............................. 6

5´Aedeagus with area of long, thin, centripetally directed setae between endophallic sclerites; these setae distinct from denticles / setae of more apical portion of endophallus ( Figs 113–115, 117 ) ..................................................................... 10

6 (5) Apical scoop of pedon with subangulate apex ( Figs 158, 159 ). TA with internal support structures of ductus ejaculatorius long, at least passing mid­level of basal sclerites ..................................................................................................... 7

6´Apical scoop of pedon evenly rounded to apex, spoon­shaped ( Figs 148–150, 152–157 , 164–166 ). TA with internal support structures of ductus ejaculatorius moderately long or short; not or hardly reaching level of basal sclerites .......... 8

7 (6) Elytra ferruginous or piceous, with or without slightly bluish to bronze lustre. TA as in Fig. 94 ; internal support structures of ductus ejaculatorius not passing beyond level of basal sclerites ..................................................... ruficornis Voss

7´Elytra deep metallic blue. TA as in Fig. 95 ; internal support structures of ductus ejaculatorius passing beyond level of basal sclerites .......................... biru sp. n.

8 (6´) TA as in Fig. 106 ; transfer processes apically markedly projecting beyond frame´s apex. Coloration of dorsal surface black with slight bronzy to bluish lustre ................................................................................................ arfakensis sp. n.

8´TA as in Figs 91 , 107 ; transfer processes only slightly projecting beyond frame´s apex. Coloration of dorsal surface metallic blue or green ..................... 9

9 (8´) TA as in Fig. 107 ; internal support structures of ductus ejaculatorius almost reaching level of basal sclerites. Striae of elytron moderately deeply impressed. Pygidium densely, deeply punctate ............................................... ratcliffei sp. n.

9´TA as in Fig. 91 ; internal support structures of ductus ejaculatorius short, not reaching level of basal sclerites. Striae of elytron weakly impressed. Pygidium sparsely, minutely punctate .................................................... dintelmanni sp. n.

10 (5´) TA as in Fig. 97 ; dorsal plate of TA wider than frame. Coloration of dorsal surface with bright green metallic lustre .......................................... coeruleus sp. n.

10´TA without distinct dorsal plate. Coloration of dorsal surface metallic blue or piceous with slight bluish lustre ...................................................................... 11

11 (10´) TA as in Figs 108–109 ; structure of frame simple, of trapezoid shape ........... 12

11´TA as in Figs 98–105 ; structure of frame more complex ................................ 13

12 (11´) Sternite VI of venter in lateral aspect evenly rounded to constriction with sternite VII. TA as in Fig. 108 ; transfer processes apically projecting beyond frame´s apex; basal sclerites ca. 0.38 X of total length of TA ................... judithae sp. n.

12´Sternite VI of venter in lateral aspect projecting nose­like. TA as in Fig. 109 ; transfer processes approximately reaching level of frame´s apex; basal sclerites ca. 0.30 X of total length of TA .......................................... tenuiflagellaris sp. n.

13 (11´) Coloration largely black with slight bluish lustre. TA as in Fig. 105 ; in dorsal aspect transfer processes parallel; in lateral aspect, with marked hook­like extension ...................................................................................... illegalovi sp. n.

13´Coloration metallic blue or metallic greenish­blue. TA as in Figs 98–104 ; in dorsal aspects transfer processes diverging; in lateral aspect usually without marked, hook­like extension ........................................................................... 14

14 (13´) TA as in Figs 98–101 ; base of transfer processes within apical half of frame; frame widest behind middle .................................................. coelestinus Pascoe

14´TA as in Figs 102–104 ; base of transfer processes at about middle of frame or within basal half of frame; frame widest shortly behind apex ........................ 15

15 (14´) Elytral striae weakly impressed ( Fig. 5 ). TA as in Fig. 104 , transfer processes in dorsal aspect apically mandibuliform ....................................... swartensis sp. n.

15´Elytral striae moderately deeply impressed ( Fig. 6 ). TA as in Figs 102–103. 16

16 (15´) TA larger, as in Fig. 102 ; base of transfer processes more basad, within basal half of frame; sides of frame sinuate, markedly diverging within basal third, towards apex with constriction............................................................. oops sp. n.

16´TA smaller, as in Fig. 103 ; base of transfer processes more apically, at about middle of frame; sides of frame diverging evenly from base to shortly before apex ...................................................................................... torricelliensis sp. n.

Figures

FIGURES 73–75. Foreleg of male Euops (Metaeuops) spp.: (73) E. coelestinus (Wasior); (74) E. curvipes, paratype (Angguruk); (75) E. paratibialis, holotype. Scale lines 500 µm.

FIGURES 19–23. Euops paratibialis: (19) male (Borme), procoxa and base of foreleg; (20) male (Borme), metatibia. (21­22) female (Emdoman), patch of modified setae on abdominal venter; note that double rows of modified setae have merged to single rows; (23) male (Borme), everted transfer apparatus of genitalia.

FIGURES 87–90. Male genitalia of Euops (Metaeuops) spp.; aedeagus in dorsal aspect; (87) E. tibialis (Epomani); (88) E. paratibialis, paratype (Emdoman). TA in lateral aspect; (89) E. tibialis (Epomani); (90) E. paratibialis, paratype (Emdoman). Scale lines 100 µm.

FIGURES 160–169. Male genitalia of Euops (Metaeuops) spp.; (160, 162, 164, 166, 168) pedon of aedeagus in ventral aspect; (161, 163, 165, 167, 169) tectum of aedeagus in dorsal aspect; (160– 161) E. tibialis, lectotype; (162–163) E. paratibialis, holotype; (164–165) E. judithae, holotype; (166–167) E. tenuiflagellaris, holotype; (168–169) E. piceus, holotype. Scale lines 100 µm.

FIGURES 10–18. Habitus of Euops (Metaeuops) spp.: (10) E. ruficornis, female lectotype; (11) E. ruficornis, male (Torricelli Mts.); (12) E. curvipes, holotype; (13) E. biru, holotype; (14) E. ratcliffei, holotype; (15) E. arfakensis, holotype; (16) E. dintelmanni, holotype; (17) E. piceus, holotype; (18) E. paratibialis, male (Japen Isl.). Scale lines 1 mm.

FIGURES 36–41. Head of Euops (Metaeuops) spp., in lateral aspect; males: (36) E. tenuiflagellaris, holotype; (37) E. curvipes, holotype; (38) E. coeruleus, holotype; (39) E. torricelliensis, holotype; (40) E. piceus, holotype; (41) E. paratibialis, holotype.

FIGURES 76–80. Mesotibia of Euops (Metaeuops) spp.: (76) E. coelestinus, male (Wasior); (77) E. curvipes, paratype, male (Angguruk); (78) E. paratibialis, holotype; (79) E. coelestinus, female (Wasior); (80) Foreleg of female Euops coelestinus (Wasior). Scale lines 200 µm.

FIGURES 1–9. Habitus of Euops (Metaeuops) spp.: (1) E. coelestinus, male (Japen Isl.); (2) E. coelestinus, female lectotype; (3) E. violaceus, female lectotype; (4) E. illegalovi, holotype; (5) E. swartensis, holotype; (6) E. oops, holotype; (7) E. tenuiflagellaris, holotype; (8) E. judithae, holotype; (9) E. coeruleus, holotype. Scale lines 1 mm.

FIGURES 26–35. Head of Euops (Metaeuops) spp., in lateral aspect; males: (26) E. ratcliffei, holotype; (27) E. arfakensis, holotype; (28) E. illegalovi, holotype; (29) E. biru, holotype; (30) E. oops, holotype; (31) E. swartensis, holotype; (32) E. judithae, holotype; (33) E. dintelmanni, holotype; (34) E. coelestinus (Ransiki); (35) E. ruficornis (Wau). Scale lines 500 µm.

FIGURES 110–118. Male genitalia of Euops (Metaeuops) spp.; mid portion of endophallus with endophallic sclerites and field of centripetal setae if present; (110) E. ruficornis (Wau); (111) E. dintelmanni, holotype; (112) E. curvipes, holotype; (113) E. judithae, holotype; (114) E. illegalovi, holotype; (115) E. torricelliensis, holotype; (116) E. biru, holotype; (117) E. coeruleus, holotype; (118) E. ratcliffei, holotype. Scale lines 50 µm.

FIGURES 148–159. Male genitalia of Euops (Metaeuops) spp.; pedon of aedeagus in ventral aspect; (148) E. arfakensis, holotype; (149) E. torricelliensis, holotype; (150) E. coelestinus (Ransiki); (151) E. curvipes, holotype; (152) E. swartensis, holotype; (153) E. dintelmanni, holotype; (154) E. ratcliffei, holotype; (155) E. oops, holotype; (156) E. illegalovi, holotype; (157) E. coeruleus, holotype; (158) E. biru, holotype; (159) E. ruficornis (Wau). Scale lines 100 µm.

FIGURES 94–97. Male genitalia of Euops (Metaeuops) spp.; transfer apparatus of aedeagus in dorsal aspect (left) and lateral aspect (right); (94) E. ruficornis, (Wau); (95) E. biru, holotype; (96) E. curvipes, holotype; (97) E. coeruleus, holotype. Scale lines 100 µm. b.s. = basal scerite, b.tr.pr. = base of transfer processes, d.e. = ductus ejaculatorius, d.pl. = dorsal plate, f = frame of TA, sup.st. = support structures, tr.pr. = transfer processes.

FIGURES 106–109. Male genitalia of Euops (Metaeuops) spp.; transfer apparatus of aedeagus in dorsal aspect (left) and lateral aspect (right); (106) E. arfakensis, holotype; (107) E. ratcliffei, holotype; (108) E. judithae, holotype; (109) E. tenuiflagellaris, holotype. Scale lines 100 µm. b.s. = basal scerite, f = frame of TA, tr.pr. = transfer processes.

FIGURES 91–93. Male genitalia of Euops (Metaeuops) spp.; transfer apparatus of aedeagus in dorsal aspect (left) and lateral aspect (right); (91) E. dintelmanni, holotype; (92) E. piceus, holotype; scale lines 100 µm; (93) aedeagus of Euops piceus, holotype, in dorsal aspect. Scale line 200 µm.

FIGURES 98–101. Male genitalia of Euops (Metaeuops) coelestinus, different geographical forms; transfer apparatus of aedeagus in dorsal aspect (left) and lateral apect (right); (98) (Arfak Mts., Membey); (99) (Wandammen bay, Wasior); (100) (Epomani); (101) (Japen Isl.). Scale lines 100 µm.

FIGURES 102–105. Male genitalia of Euops (Metaeuops) spp.; transfer apparatus of aedeagus in dorsal aspect (left) and lateral aspect (right); (102) E. oops, holotype; (103) E. torricelliensis, holotype; (104) E. swartensis, holotype; (105) E. illegalovi, holotype. Scale lines 100 µm.