Gibbobruchus

Manfio, Daiara, Jorge, Isaac R., Morse, Geoffrey E. & Ribeiro-Costa, Cibele S., 2016, The New World Gibbobruchus Pic (Coleoptera, Chrysomelidae, Bruchinae): description of a new species and phylogenetic insights into the evolution of host associations and biogeography, Zootaxa 4103 (6), pp. 513-525 : 519

Updated key to Gibbobruchus species

To accommodate the species here described, the key to the Gibbobruchus species proposed by Manfio et al. (2013, p. 9) is modified as follows:

Couplets 1–3 without change.

4. Dorsum with short pubescence, mainly white or grayish, contrasting with the dark integument (Figs 1,2); pecten with a maximum of 3 teeth, distal tooth often bifid.................................................................. 4A 4’. Dorsum with dense or sparse long pubescence, mainly pale brown (see Manfio et al. 2013: p. 6, Fig. 9 ); elytron in general with conspicuous mottled, when not conspicuous, pubescence not contrasting with the integument; pecten with 4 or more teeth (see Manfio et al. 2013: p. 27, Fig. 102)....................................................................... 5 4A. Antenna flabellate (see Manfio et al. 2013: p. 6, Fig. 8 ); pygidium with speculum in both sexes, bituberculate in female and flat in male (see Manfio et al. 2013: p. 21, Fig. 55; p. 22, Fig. 65)........................... G. polycoccus (Fåhraeus, 1839) 4A’. Antenna subserrate ( Figs 3, 4 ); male pygidium with small glabrous apical area ( Fig. 5 ), female pygidium with speculum ( Fig. 6 )........................................................ G. tridentatus Manfio, Jorge & Ribeiro-Costa sp.nov.

Couplets 5–12 without change.

Figures

FIGURE 9. Most parsimonious tree of Gibbobruchus species based on a reanalysis of unweighted characters (38 steps, CI = 0.71, Ri = 0.82). Filled circles represent unique changes, open circles represent multiple changes. Values for the Bremer support are in squares below branches.

FIGURES 7 – 8. Gibbobruchus tridentatus Manfio, Jorge & Ribeiro-Costa sp. nov. Male genitalia: 7. Median lobe; 7 a. Setae; 7 b. Subrectangular, shallow, sparse structures; 7 c. Denticles; 7 d, e. Subrectangular, shallow, sparse structures; 7 f, g. Thin spicules; 8. Tegmen; 8 a. Ctenoid scales. Scale: 0.1 mm.

FIGURES 1 – 6. Gibbobruchus tridentatus Manfio, Jorge & Ribeiro-Costa sp. nov. 1. Male dolsal habitus; 2. Female dorsal habitus; 3. Male lateral habitus; 4. Female frontal habitus; 5. Male pygidium; 6. Female pygidium. Scale: 0.5 mm.