Download full text (PDF 4.5 MB) - University of Nebraska State ...

34 BULLETIN OF THE UNIVERSITYOF NEBRASKA STATE MUSEUM
Key to the Species of Platycoelia
1. Mesothoracic process short, not projecting anteriorly beyond mesocoxa (or
projecting weakly past mesocoxa) (Fig. 10).…………………………………… 2
1'. Mesothoracic process long, projecting anteriorly near or beyond base of
procoxa (Figs. 7-9).………………………………………………………….…… 22
2(1). Elytral sutural apex with acute spine (similar to Fig. 8)..........................
………………………………………………… 51. Platycoelia insolita Smith
2'. Elytral sutural apex angled or rounded, without acute spine…………..…. 3
3(2'). Dorsally bicolored with head and pronotum black, elytron brown.…….…. 4
3'. Dorsally unicolored or with different coloration pattern than above.....…. 6
4(3). Pronotum covered with long setae (Fig. 78)……………………………………….
.......................................................... 61. Platycoelia haenkei (Gutiérrez)
4'. Pronotum glabrous or with scattered patches of setae….…….……………. 5
5(4'). Pygidium smooth with well-defined punctures…..........................................
..................................................................... 58. Platycoelia bocki (Ohaus)
5'. Pygidium rugose to granulate……… 59. Platycoelia alticola (Gutiérrez)
6(3'). Dorsal and ventral surface cream-colored to tan……………………………….
............................................................ 43. Platycoelia lutescens Blanchard
6'. Dorsal and ventral surface with at least some darker coloration (green,
brown, black)………………………………………………………………………... 7
7(6'). Head, pronotum, and scutellum cream-colored to tan, elytron dark
brown……….. ………………………………….... 60. Platycoelia inca Smith
7'. Head, pronotum, and scutellum with darker coloration (green, brown, black)
or elytron not dark brown.………………………………………………..………. 8
8(7'). Elytron green or yellow with thick, brown to black sutural line..…………. 9
8'. Elytron brown to black or without dark sutural line…………………….... 10
9(8). Femora and tibiae yellow…………… 62. Platycoelia laelaps (Gutiérrez)
9'. Femora and tibiae reddish-brown to black……..........................................…
..................................................................... 53. Platycoelia helleri (Ohaus)
10(8'). Dorsal color primarily green or yellow, sometimes with black maculations
on frons and pronotum (extensive in P. furva)..…………………………..…. 11
10'. Dorsal coloration not primarily green or yellow…..……………………...…. 19
11(10). Mentum with deep basomedial impression on either side of midline (Fig.
33). Perú to Bolivia...…………………. 50. Platycoelia rufosignata Ohaus
11'. Mentum usually flat, without deep impressions………………………….…. 12
12(11'). Ventral surface and pygidium black. Frons, pronotum and elytron with
prominent, dark maculations. Ecuador……………......................……………
........................................................................ 48. Platycoelia furva Smith
12'. Ventral surface and pygidium not entirely black. Frons, pronotum and
elytron unicolored or sometimes pronotum with prominent maculations.............................................................................................................
13
13(12'). Apical 2 spiracles not extruding. Pronotum often with dark maculations..…….....................................................................................................
14
13'. Apical 2 spiracles extruding, cylindrical (more prominent in males) (Fig. 35).
Pronotum with uniform coloration………………….……………….……..…. 16
14(13). Body length greater than 20 mm (often over 25 mm). Colombia to
Perú………....…………………. 49. Platycoelia quadrilineata Burmeister
14'. Body length less than 18 mm. Colombia……………………………………... 15
15(14'). Pronotum with black markings (Fig. 75). Colombia……………………………..
….……………………………... 52. Platycoelia signaticollis (Burmeister)
15'. Pronotum uniformally green. Argentina.....................................................…
................................................................. 8. Platycoelia simplicior Ohaus
16(13'). Body length short, males usually less than 19 mm, females usually less than
22 mm. Frons not depressed medioapically..………………………………….. 17