Perelleschus

Nico M. Franz & Juliana Cardona-Duque, 2013, Description of two new species and phylogenetic reassessment of Perelleschus O’Brien & Wibmer, 1986 (Coleoptera: Curculionidae), with a complete taxonomic concept history of Perelleschus sec. Franz & Cardona-Duque, 2013, Systematics and Biodiversity 11 (2), pp. 209-236 : 224

Revised key to the species of Perelleschus sec. Franz & Cardona-Duque (2013)

(Modified from Franz & O’Brien, 2001)

1. Striae I–III of elytron dark reddish-brown, striae IV–X of elytron light reddish-brown; male with basal 1/2 of scape dark brown, apical 1/2 of scape light brown, internal sclerite of median lobe fused, basal, and weakly sclerotized, aedeagal apodemes similar throughout (fig. 5a in Franz & O’Brien, 2001).. ... ... ... ... ... ... ... .... . P. rectirostris sec. Franz & Cardona-Duque (2013)

1. ' Striae I–X of elytron of similar color throughout; male lacking previous character combination, with aedeagal apodemes distinctly broadened in basal 1/3.. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .... . 2

2(1 '). Male with internal sclerites of endophallus primarily extending along basal 1/2; female with spermathecal cornu acute (figs 6c & 7c in Franz & O’Brien, 2001).. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .... . 3

2 '. Male with internal sclerites of endophallus primarily extending along apical 1/2; female with spermathecal cornu slightly to distinctly rounded (figs 8c–12c in Franz & O’Brien, 2001).. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .... . 4

3(2). Length 1.9–2.5 mm; male with internal sclerites of median lobe extending along basal 1/2 (figs 6a & 6b in Franz & O’Brien, 2001); Colombia and Panama... P. evelynae sec. Franz & Cardona-Duque (2013)

3 '. Length 2.4–3.0 mm; male with internal sclerites of median lobe extending along basal 2/3 (figs 7a & 7b in Franz & O’Brien, 2001); Colombia and Ecuador... P. variabilis sec. Franz & Cardona-Duque (2013)

4(2 '). Male with tegminal apodeme subrectate, apical sclerite in median lobe fused (figs 8a,b & 9a,b in Franz & O’Brien, 2001).. ... ... ... ... ... ... ... ... ... ... ... ... .... 5

4 '. Male with tegminal apodeme deflexed, apical sclerites in median lobe paired or irregularly arranged (figs 10a,b, 11a,b 12a,b in Franz & O’Brien, 2001).. ... ... ... ... .... . 6

5(4). Vestiture short; male with ventrite III dark reddishbrown, ventrites IV–VII light reddish-brown, internal sclerite of median lobe heavily sclerotized (figs 8a,b in Franz & O’Brien, 2001).. ... ... ... ... ... ... ... .... P. biventralis sec. Franz & Cardona-Duque (2013)

5 '. Vestiture glabrate, appearance distinctly shiny; male with venter of similar colour throughout, internal sclerite of median lobe weakly sclerotized (figs. 9a,b in Franz & O’Brien, 2001).. ... ... ... ... ... ... ... .... P. splendidus sec. Franz & Cardona-Duque (2013)

6(4 '). Male with basal 1/2 of scape dark brown; associated with Carludovica palmata [nonfocal].. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .... .. 7

6 '. Male with basal 1/2 of scape light brown, procoxa lacking dense apical vestiture; associated with C. rotundifolia [non-focal] and C. sulcata [nonfocal].. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .. 9 7(6). Procoxa with dense apical vestiture; female with apical margin of the sternum VIII lamina mesally slightly emarginate.. ... ... ... ... ... ... ... ... ... .... . P. pubicoxae sec. Franz & Cardona-Duque (2013)

7 '. Procoxa without dense apical vestiture, at most with some short and sparse hairs; female with apical margin of the sternum VIII lamina triangularly converging, mesally truncate ( Figs 21 & 33 ).. ... ... .... .... ... ... ... ... ... .... 8

8(7 '). Labial prementum slightly elongate; spiculum relictum bilobed; apodeme of male sternum IX slightly narrowed near apex, basal fork distally rounded ( Fig. 18 ); apical margin of the aedeagus evenly rounded; endophallus with weak papillate sclerites at apical 1/3; female with spermathecal cornu inclined clockwise or counter-clockwise, not one plane ( Figs 23 & 24 ).. ... .... ... ... ... ... .... P. salpinflexus sp. nov. sec. Franz & Cardona-Duque (2013)

8 '. Labial prementum subquadrate; spiculum relictum forked and pointed; apodeme of male sternum IX similar throughout, basal fork distally acute ( Fig. 30 ); apical margin of the aedeagus slightly projected; endophallus with spine-like sclerites along apical 1/2; female with spermathecal cornu not inclined, one plane ( Fig. 34 )... Perelleschus spinothylax sp. nov. sec. Franz & Cardona-Duque (2013)

9(6 '). Length 2.6–3.4 mm; male with internal sclerites of median lobe heavily sclerotized; female with short, membranous projection at cornu of spermatheca (fig. 11c in Franz & O’Brien, 2001).. ... ... ... ... ... ... ... ... .... P. carludovicae sec. Franz & Cardona-Duque (2013)

9 '. Length 1.9–2.5 mm; male with internal sclerites of median lobe weakly sclerotized; female with long, membranous projection at cornu of spermatheca (fig. 12c in Franz & O’Brien, 2001).. ... ... ... ... ... ... ... ... .... . P. sulcatae sec. Franz & Cardona-Duque (2013)

Figures

Figs 21 – 24. Female terminalia of P. salpinflexus sec. Franz & Cardona-Duque (2013); (21) sternum VIII; (22) coxites; (23) spermatheca, lateral view; (24) spermatheca, frontal view.

Figs 33 – 34. Female terminalia of P. spinothylax sec. Franz & Cardona-Duque (2013); (33) sternum VIII; (34) spermatheca, lateral view.

Figs 17 – 20. Male terminalia of P. salpinflexus sec. Franz & Cardona-Duque (2013); (17) sternum VIII; (18) sternum IX; (19) tegmen; (20) aedeagus, dorsal and ventral view.

Figs 29 – 32. Male terminalia of P. spinothylax sec. Franz & Cardona-Duque (2013); (29) sternum VIII; (30) sternum IX; (31) tegmen; (32) aedeagus, dorsal and ventral view.