Euops

Riedel, Alexander, 2009, A taxonomic study of the Indian species of Euops Schoenherr (Coleoptera: Curculionoidea: Attelabidae), Zootaxa 2125, pp. 1-56 : 4

Key to the Euops species of India excluding the Himalaya region

1 Coloration orange, only eyes black ( Figs. 3–4 , 15–16 ); pronotum smooth, sparsely punctate; prementum with two apical teeth. ......................................................................................................................................... E. tamilnadunsis

– Coloration dark with more or less colourful metallic lustre; pronotum sparsely punctate or punctate-rugose; prementum with three apical teeth .......................................................................................................................................... 2

2 (1)Pronotum subglabrous; with sparse punctures, without wrinkles ( Fig. 60 ) .................................... E. trichinopoliensis

– Pronotum markedly punctate-rugose .......................................................................................................................... 3

3 (2)Abdominal venter subglabrous or setose with simple setae (-> males) ..................................................................... 4

– Abdominal venter with transverse rows of modified setae (-> females) .................................................................... 8

4 (3)Mesotibia subapically simple ( Fig. 123 ); head with gena longer ( Fig. 104 ); wrinkles of pronotum concentric around short midline ( Fig. 78 ) .............................................................................................................................. E. andrewesi

– Mesotibia subapically with acute spiniform process ( Figs. 125–128 ); head with gena shorter ( Figs. 108 , 110, 112, 114 ); pronotum with curved, transverse wrinkles open anteriorly .............................................................................. 5

5 (4)Mesosternum simple; subapical process of mesotibia large ( Fig. 125 ); TA of aedeagus not flagelliform ( Figs. 138–139 , 159 ) ............................................................................................................................................ E. bowringii

– Mesosternum between mesocoxae with protrusion projecting anteriad ( Fig. 77 ); subapical process of mesotibia smaller ( Figs. 126–128 ); TA of aedeagus flagelliform ( Figs. 145 , 150 , 155 ). .................................. 6 ( indicus -group)

6 (5)Pedon of aedeagus apically subtruncate ( Figs. 143, 146 ); prothorax in front of procoxa not projecting in lateral aspect; subapical process of mesotibia longer ( Fig. 126 ); rostrum in lateral aspect thinner, dorsal contour in middle somewhat depressed ( Fig. 110 ) ...................................................................................................................... E. indicus

– Pedon of aedeagus apically pointed ( Figs. 151 , 156 ), prothorax in front of procoxa subangulate, projecting in lateral aspect ( Figs. 24 , 76 ); subapical process of mesotibia shorter ( Figs. 127–128 ); rostrum in lateral aspect thicker, dorsal contour not depressed in middle ( Figs. 112, 114 ) ....................................................................................................... 7

7 (6)Coloration largely coppery-bronze; abdominal ventrite 4 with median pit containing sparse setae, but without dense brush ( Figs. 95–96 ); rostrum in lateral aspect thinner ( Fig. 114 ) ....................................................... E. pseudoindicus

– Coloration largely deep blue; abdominal ventrite 4 with small erect median brush of dense stiff setae ( Fig. 98 ); rostrum in lateral aspect thicker ( Fig. 112 ) ....................................................................................... E. keiseri nilgiriensis

8 (3)Ventral margin of protibia in middle subangulately projecting ( Fig. 130 ); coloration of tarsi and antenna ferruginous, remainder of body dark, either largely brownish or metallic green ( Figs. 2 , 14 , as in 25); wrinkles of pronotum concentric around midline ( Fig. 78 ) ............................................................................................................... E. andrewesi

– Ventral margin of protibia sinuate ( Figs. 131–135 ); coloration of tarsi and antenna same as remainder of body, usually black with metallic lustre; pronotum with curved, transverse wrinkles open anteriorly ...................................... 9

9 (8)Mesosternum simple; protibia as in Fig. 132 ............................................................................................ E. bowringii

– Mesosternum between mesocoxae with protrusion projecting anteriad ( Fig. 77 ); protibia as in Figs. 133–135 .......... .......................................................................................................................................................... 10 ( indicus -group)

10 (9)Prothorax in front of procoxa not projecting in lateral aspect ( Fig. 20 ); dorsal contour of protibia weakly convex ( Fig. 133 ) E. indicus

– Prothorax in front of procoxa subangulate, projecting in lateral aspect ( Figs. 22, 24 ); dorsal contour of protibia markedly convex ( Figs. 134–135 ) ............................................................................................................................. 11

11 (10)Coloration largely coppery-bronze ( Fig. 8 ); protibia as in Fig. 135 , dorsal contour more convex. E. pseudoindicus

– Coloration largely deep blue ( Fig. 10 ); protibia as in Fig. 134 , dorsal contour less convex ....... E. keiseri nilgiriensis

Figures

FIGURES 1 – 6. Habitus of Euops spp., dorsal aspect: (1) E. andrewesi, male (11 km SE Kotagiri); (2) E. andrewesi, female (11 km SE Kotagiri); (3) E. tamilnadunsis, male (Ootacamund); (4) E. tamilnadunsis, female (Ootacamund); (5) E. bowringii, male (11 km SE Kotagiri); (6) E. bowringii, female (11 km SE Kotagiri).

FIGURES 13 – 18. Habitus of Euops spp., lateral aspect: (13) E. andrewesi, male (11 km SE Kotagiri); (14) E. andrewesi, female (11 km SE Kotagiri); (15) E. tamilnadunsis, male (Ootacamund); (16) E. tamilnadunsis, female (Ootacamund); (17) E. bowringii, male (11 km SE Kotagiri); (18) E. bowringii, female (11 km SE Kotagiri).

FIGURES 60 – 63. Euops trichinopoliensis, holotype: (60) dorsal aspect, (61) lateral aspect, (62) frontal aspect, (63) labels.

FIGURES 123 – 129. Left mesotibia of Euops spp. males: (123) E. andrewesi (11 km SE Kotagiri); (124) E. tamilnadunsis (Ootacamund); (125) E. bowringii (lectotype); (126) E. indicus (11 km SE Kotagiri); (127) E. keiseri nilgiriensis ssp. n., holotype; (128) E. pseudoindicus sp. n., holotype; (129) E. trichinopoliensis, holotype.

FIGURES 104 – 109. Head of Euops spp.; in lateral aspect (above); in dorsal aspect (below): (104) E. andrewesi, male (11 km SE Kotagiri); (105) E. andrewesi, female (11 km SE Kotagiri); (106) E. tamilnadunsis, male (Ootacamund); (107) E. tamilnadunsis, female (Ootacamund); (108) E. bowringii, lectotype; (109) E. bowringii, female (11 km SE Kotagiri).

FIGURES 71 – 78. Euops spp.: (71 – 74) apex of rostrum in ventral aspect (left), prementum (right): (71 – 72) E. indicus, (73 – 74) E. andrewesi; (75 – 76) prothorax in ventral aspect, coxae removed: (75) E. indicus, (76) E. pseudoindicus sp. n., arrows indicating projections of prepectus; (77) mesothorax of E. indicus, lateral aspect; arrow indicating protrusion; (78) pronotum of E. andrewesi.

FIGURES 110 – 115. Head of Euops spp.; in lateral aspect (above); in dorsal aspect (below): (110) E. indicus, male (11 km SE Kotagiri); (111) E. indicus, female (11 km SE Kotagiri); (112) E. keiseri nilgiriensis ssp. n., holotype; (113) E. keiseri nilgiriensis ssp. n., female paratype; (114) E. pseudoindicus sp. n., holotype; (115) E. pseudoindicus sp. n., female paratype.

FIGURES 136 – 142. Male genitalia of Euops bowringii: (136) aedeagus in dorsal aspect, lectotype; (137) aedeagus in lateral aspect, lectotype; (138) transfer apparatus in dorsal aspect (11 km SE Kotagiri); (139) transfer apparatus in lateral aspect (11 km SE Kotagiri); (140) pedon, lectotype; (141) tectum, lectotype; (142) tegmen (11 km SE Kotagiri).

FIGURES 158 – 160. Male genitalia of Euops spp., transfer apparatus in dorsal aspect: (158) E. andrewesi, lectotype (159) E. bowringii (11 km SE Kotagiri); (160) E. tamilnadunsis (Ootacamund).

FIGURES 143 – 147. Male genitalia of Euops indicus (11 km SE Kotagiri): (143) Aedeagus in dorsal aspect; (144) aedeagus in lateral aspect; (145) Transfer apparatus in lateral aspect; (146) pedon; (147) tegmen.

FIGURES 148 – 152. Male genitalia of Euops keiseri nilgiriensis ssp. n., holotype: (148) aedeagus in dorsal aspect; (149) aedeagus in lateral aspect; (150) transfer apparatus in lateral aspect; (151) pedon; (152) tegmen.

FIGURES 153 – 157. Male genitalia of Euops pseudoindicus sp. n., holotype: (153) aedeagus in dorsal aspect; (154) aedeagus in lateral aspect; (155) transfer apparatus in lateral aspect; (156) pedon; (157) tegmen.

FIGURES 19 – 24. Habitus of Euops spp., lateral aspect: (19) E. indicus, male (11 km SE Kotagiri); (20) E. indicus, female (11 km SE Kotagiri); (21) E. keiseri nilgiriensis ssp. n., holotype; (22) E. keiseri nilgiriensis ssp. n., female paratype; (23) E. pseudoindicus sp. n., holotype; (24) E. pseudoindicus sp. n., female paratype, arrow pointing to projection of prepectus.

FIGURES 93 – 99. Euops spp.: (93 – 96) apex of abdominal venter, overview (left), setose patch on ventrite 4 (right); (93 – 94) E. indicus, (95 – 96) E. pseudoindicus sp. n.; (97) E. indicus, lateral view of abdomen; arrow indicating setose patch on ventrite 4; note densely punctate sculpture; (98) E. keiseri nilgiriensis ssp. n., holotype; ventro-lateral aspect of abdomen with setose brush on ventrite 4, light-microscopy image; (99) E. andrewesi, transfer apparatus of male genitalia.

FIGURES 130 – 135. Left protibia of Euops spp. females: (130) E. andrewesi (11 km SE Kotagiri); (131) E. tamilnadunsis (Ootacamund); (132) E. bowringii (lectotype); (133) E. indicus (11 km SE Kotagiri); (134) E. keiseri nilgiriensis ssp. n., female paratype; (135) E. pseudoindicus sp. n., female paratype.

FIGURES 7 – 12. Habitus of Euops spp., dorsal aspect: (7) E. indicus, male (11 km SE Kotagiri); (8) E. indicus, female (11 km SE Kotagiri); (9) E. keiseri nilgiriensis ssp. n., holotype; (10) E. keiseri nilgiriensis ssp. n., female paratype; (11) E. pseudoindicus sp. n., holotype; (12) E. pseudoindicus sp. n., female paratype.