Falklandiina, Morrone, 2013

Morrone, Juan J., 2013, The subtribes and genera of the tribe Listroderini (Coleoptera, Curculionidae, Cyclominae): Phylogenetic analysis with systematic and biogeographical accounts, ZooKeys 273, pp. 15-71 : 35

Falklandiina subtr. n.

Type genus.

Falklandius Enderlein, 1907.

Diagnosis.

Small to very small (except Liparogetus and some species of Gromilus , which are medium-sized); rostrum stout, shorter than pronotum (except Gromilus and Nestrius , with relatively stout, medium-sized rostrum); pterygiae auriculate, exposed ( Fig. 5 ); scrobes short, ill-defined, broad; eyes usually flat; postocular lobes usually absent (except Gromilus and Falklandiopsis ); pronotum usually subcircular or subcylindrical; metanepisternal suture usually posteriorly fused or obliterated; elytra oblong-oval.

Included taxa.

This new subtribe, which basically corresponds to the Falklandius generic group of Morrone (1997a), includes the genera Falklandiellus , Falklandiopsis , Falklandius , Gromilus , Lanteriella , Liparogetus , Nestrius and Telurus . The genera Gromilus , Liparogetus and Nestrius are distributed in New Zealand, whereas the five remaining genera are South American, distributed in the Subantarctic subregion of the Andean region ( sensu Morrone, 2006).

Key to the genera of Falklandiina

1	Scrobes lateral	2
-	Scrobes dorsolateral to dorsal ( Fig. 5 )	6
2	Eyes transverse ( Fig. 8 ); female elytral apex not produced; female ventrites 3 and 4 combined shorter than 5	3
-	Eyes subcircular ( Fig. 5 ); female elytral apex produced; female ventrites 3 and 4 combined longer than 5	Telurus ( Fig. 24 )
3	Eyes slightly convex; postocular lobes absent	4
-	Eyes flat; postocular lobes slightly developed	5
4	Vestiture of setae only; rostrum very short, stout; rostral dorsal carinae absent; scrobes short, ill-defined; eyes dorsal; scape medium-sized (reaching eye when resting in scrobe); funicular segments 3-6 globose; pronotum subcircular; elytra with humeral tubercles; femora subcylindrical, markedly clavate; southern South America	Falklandiopsis ( Fig. 24 )
-	Vestiture of seta-like scales and setae; rostrum medium-sized, relatively stout; rostral dorsal carinae present; scrobes long, deep, sharply bordered, reaching eyes; eyes lateral; scape long (surpassing posterior margin of eye when resting in scrobe); funicular segments 3-6 elongate; pronotum subcylindrical; elytra lacking humeral tubercles; femora subcylindrical, clavate; New Zealand	Gromilus ( Fig. 26 )
5	Very small (2.6-3.5 mm); vestiture of subcircular scales and setae; rostrum lacking dorsal carinae; antennal insertion distal; club fusiform; pronotum transverse; metanepisternal suture posteriorly fused or obliterated; elytra with series of declivital tubercles; tibiae with spurs; southern South America	Falklandiellus ( Fig. 23 )
-	Medium-sized (6.0-10.0 mm); vestiture of seta-like scales and setae; rostrum with dorsal carinae; antennal insertion at the middle of the rostrum; club inflated; pronotum subquadrate; metanepisternal suture complete; elytra lacking series of declivital tubercles; tibiae lacking spurs; New Zealand	Liparogetus
6	Rostrum relatively stout, medium-sized, with dorsal carinae; eyes lateral; funicular segment 2 elongate; pronotum subcylindrical; scutellum not visible; New Zealand	Nestrius
-	Rostrum very short, stout, lacking dorsal carinae; eyes dorsal; funicular segment 2 globose; pronotum subcircular; scutellum visible; southern South America	7
7	Vestiture of seta-like scales and setae; eyes small; club inflated; pronotum with disc rugose; elytra with intervals convex; femora subcylindrical; tibiae subcylindrical	Falklandius ( Fig. 25 )
-	Vestiture of setae only; eyes very small, microphthalmic; club fusiform; pronotum with disc smooth, polished; elytra with intervals flat; femora dorsoventrally compressed; tibiae apically expanded	Lanteriella ( Fig. 27 )

Figures

Figures 1 - 12. Some of the characters analysed. 1 Seta-like scales 2 subcircular scales 3 lanceolate scales 4 scales with finger-like processes 5, 6, 8 face and rostrum, dorsal view 7 face and rostrum, lateral view 8, 9 elytra, dorsal view 11, 12 tarsomere 3, ventral view. 1, 5 Falklandius antarcticus; 2, 8, 11 Falklandiellus suffodens; 3 Hyperoides subcinctus; 4, 12 Philippius superbus; 6, 7, 10 Listroderes costirostris; 9 Lamiarhinus aelficus.

Figures 18 - 26. Habitus of representative Listroderini. 18 Adioristidius hirsutus 19 Puranius nigrinus 20 Haversiella albolimbata 21 Listronotus bosqi 22 Neopachytychius squamosus 23 Falklandiellus suffodens 24 Falklandiopsis magellanica 25 Falklandius antarcticus 26 Gromilus veneris.

Figures 27 - 35. Habitus of representative Listroderini. 27 Lanteriella microphtalma 28 Telurus caudiculatus 29 Acrorius papallacta 30 Acrostomus bruchi 31 Antarctobius lacunosus 32 Germainiellus dentipennis 33 Lamiarhinus aelficus 34 Listroderes annulipes 35 Philippius superbus.