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