Apterodina bucki Bechyné

Flowers, R. Wills, 2004, New flightless Eumolpinae of the genera Apterodina Bechyné and Brachypterodina n. gen. (Coleoptera: Chrysomelidae) from the Neotropics, Zootaxa 549, pp. 1-18 : 7-8

Apterodina bucki Bechyné

( Figs. 5 , 9 , 13 , 31 , 33 )

Apterodina bucki Bechyné 1954:117 .

Female. Length 3.8–4.2 mm. Head, pronotum, elytra and underside brownish black with faint metallic sheen; antenna reddish brown, segments 7–9 paler. Legs piceous reddish brown. Mouthparts and mandibles piceous; labrum with 2 dorsal setae and short row of lateral setae along outer margin. Mandibles with lateral surface smooth, a prominent seta on dorsal surface at angle. Prothorax distinctly wider than long, L/W = 0.62; pronotum strongly convex, anterior angles quadrate, rounded, posterior angles obtuse; lateral margins narrow, rounded, strongly converging in apical third, with widest part of pronotum near middle; disc regularly, punctate, with punctures separated by a distance subequal to their own diameters. Undersurface of thorax smooth. Prosternum with intercoxal process flat, its width 1.0 x diameter of procoxa. Mesosternum with scattered setae. Metasternum very short, narrow between meso­ and metacoxae, transversely wrinkled, with short yellow setae. Elytra inflated, more or less evenly punctate, with punctures separated by distance greater than the diameter of a puncture; surface between punctures smooth with scattered small punctulae; humeri not prominent, broadly rounded, width across humeri 1.05 x width across pronotum; basal calli obsolete; postbasal depression lacking; sides broadly rounded, convergent; apices mucronate at sutural angle. Hind wing reduced to narrow strap ( Fig. 13 ). Scutellum U­shaped. Abdomen with scattered erect setae, surface of segments smooth. Pygidium densely setose on posterior margin ( Fig. 9 ). Segments VIII–XI forming elongate ovipositor. Sternum VIII with long aciculate basal apodeme. Spermatheca ( Fig. 31 ) with pump and receptacle not differentiated, a thin apodeme on the apex of pump; spermathecal duct thin and coiled.

Male. unknown.

Specimens Examined. 1 Ψ (NHMB): Porto Alegre; P­type, Apterodina bucki m., J. Bechyn det. 1953. 1 Ψ (NHMB): Parecy Novo no other data. The type (not seen) is in the Pio Buck collection ( Bechyné 1954), currently in the Colegio Anchieta in Sao Paulo (C. Duckett, pers. com.).

Figures

FIGURES 3 – 6. Apterodina spp. 3 – 4, Apterodina bechynei: 3. male, dorsal view; 4. female, dorsal view. 5; A. bucki female, dorsal view; 6. A. ruminyahui female, dorsal view.

FIGURES 7 ­ 9. 7 ­ 8, Brachypterodina gonzalezi. 7. female, dorsal view; 8. humeral area enlarged; 9. Apterodina bucki, pygidium.

FIGURES 10 ­ 13. Hind wings. 10. Brachypterodina morae; 11. Apterodina ruminyahui. 12; Apterodina bechynei; 13. Apterodina bucki.

FIGURES 21 ­ 32. Female genitalia. Figs. 21 ­ 23, 29. Apterodina bechynei; 21, ovipositor, ventral view; 22, dorsal hood of segment IX. 23, segment VIII, dorsal view; 29, spermatheca. Figs. 24, 32, Apterodina ruminyahui; 24, ovipositor, ventral view; 32, spermatheca. Figs. 25 ­ 27. 30, Brachypterodina morae; 25, ovipositor, ventral view; 26, dorsal hood of segment IX. 27, segment VIII, dorsal view; 30 (above and right), spermatheca; 28 (left and below), Brachypterodina gonzalezi, spermatheca. 31, Apterodina bucki, spermatheca.

FIGURES 33 ­ 34. Distribution of Apterodina and Brachypterodina. 33. Distribution of Apterodina; A. bechynei, closed diamond; A. bucki, closed circle; A. granulifera, closed triangle; A. ruminyahui, closed square. 34. Distribution of Brachypterodina. B. gonzalezi, closed triangle; B. morae, closed circle.