exuviae, Latreille, 1802

Motta, Paulo César, 2003, Cicadas (Hemiptera, Auchenorrhyncha, Cicadidae) from Brasília (Brazil): exuviae of the last instar with key of the species, Revista Brasileira de Zoologia 20 (1), pp. 19-22 : 21-22

Key for species identification using exuviae

Species may be differentiated by the morphology of their exuviae (see Figs. 1 , 4-10 ). Females of M. aper and F. mannifera present dubious characteristics and are not easy to distinguish them.

1. Large or medium size, length 2.6 cm .............................. 2

1’. Length 2,6 cm ................................................................. 5

2. Light beige coloration ........................................................ 3

2’. Dark beige/brown coloration ............................................ 4

3. Light beige with white patches, male> 3.7 cm, female> 3.3 cm .................................................................. Quesada gigas

3’. Normal beige with or without white patches; medium size, male: 3.1-3.8 cm, female: 3.0-3.4 cm; male developing genitalia longer than wider and without anterior barbs; profemoral intermediary tooth single or slightly undulated ....................................................... Fidicinoides determinata

4. Medium large (male: 3-3.7 cm; female: 2.9-3.5 cm), light gray sternites, generally with soil attached, male developing genitalia with two light protuberances ..... Majeorona aper

4’. Medium small (male: 2.7-3.3 cm; female: 2.5-3.3 cm), more intense coloration, more “glossy”, dark gray sternites; male developing genitalia with two proximate barbs; profemur darker coloration ................................... Fidicina mannifera

5. Length: 2.2-2.6 cm, light beige, white patches can be present, normal setae ........................................... Fidicinoides pronoe

5’. Not as above ....................................................................... 6

6. Length: 1.8-2.4 cm, whitish beige coloration, pilous body, larger and more abundant setae ................... Dorisiana sp.

6’. Normal light beige coloration, normal setae ................... 7

7. Small (male: 1.6-2.1 cm), male developing genitalia with two barbs ................................................... Dorisiana viridis

7’. Very small (male <= 1.6 cm), male developing genitalia with two protuberances ......................... Dorisiana drewseni

Figures

Figs. 1-3. (1) Ventral view of male abdomen (Majeorona aper); (2) ventral overview of female developing genitalia (Fidicina mannifera); (3) First leg (trochanter, femur and tibia) of Quesada gigas. (c) Femoral comb, (dv) dorsal valve or gonapophysis, (F) femur, (st) sternum, (T) tibia, (tg) tergum, (Tr) trochanter, (t1, t2) femoral teeth, (vv) ventral valve or gonapophysis. The terms are from BOULARD (1965) and CHAPMAN (1998).

Figs. 4-10. Terminal segments of the male nymphal exuviae (ventral view). (4) Fidicinoides determinata; (5) Quesada gigas; (6) Fidicina mannifera; (7) Dorisiana viridis; (8) Fidicinoides pronoe; (9) Dorisiana sp.; (10) Dorisiana drewseni.