Agrilaxia (Agrilaxia) tristis ( Cobos, 1972 )

Bílý, Svatopluk & Brûlé, Stéphane, 2013, A study on the genus Agrilaxia of French Guiana (Coleoptera: Buprestidae: Anthaxiini), Acta Entomologica Musei Nationalis Pragae 53 (2), pp. 657-686 : 684

Agrilaxia (Agrilaxia) tristis ( Cobos, 1972)

( Figs 4 , 18, 21, 25 , 30 )

Anthaxia (Agrilaxia) tristis Cobos, 1972: 82 .

Anthaxia (Agrilaxia) tristis: BÍLÝ (1997: 37 , 123; catalogue).

Agrilaxia tristis: BELLAMY (2008: 1508 ; catalogue).

Type specimen studied. HOLOTYPE ( MNHN, ♀): “[ Brasil]Cachimbo, Bahia, Ch. Pujol, 1890”.

Further specimens studied. FRENCH GUIANA: SAÜL: 3°37′N 53°12′W, 18.iii.2008, ex larva, P.-H. Dalens leg. (2 ♀♀, NMPC). ROUTE DE KAW: PK29, 23.ii.2008, ex larva, P.-H. Dalens leg. (1 ♀, NMPC) ; PK29 , 18.ix.2010, ex larva, P.-H. Dalens leg. (3 ♀♀, NMPC) ; PK37,5 , 5.ix.2007, J.-A. Cerda & O. Morvan leg. (1 ♀, NMPC). ROUTE DE RÉGINA: Piste Kapiri, PK 125+6, 1.xii.2008, PIV, J.-L. Giuglaris leg. (1 J, NMPC) ; the same data but: 1.iv.2009 (1 ♀, NMPC), 1.vi.2011 (3 JJ, NMPC). MATITI: PIV, 15.ix.2011, J.-L. Giuglaris leg. (1 J, NMPC). PAKURA: 19.ix.2009, Malaise trap, J.-A. Cerda leg. (1 ♀, NMPC). ROUTE DE SAINT GEORGES: 5.viii.2007, ex larva, J.-L. Giuglaris leg. (1 ♀, NMPC) .

Note. Agrilaxia tristis was described from two females and it resembles very much A. bongrandi (compare Figs 2 and 4 ) differing from it by the more angulate pronotum, fused black, pronotal stripes (forming one, large central spot), slightly different colouration (compare Figs 2 and 4 ) and by the longer and more acute spines on posterior margins of the anal tergite and ventrite (compare Figs 18 and 21 ). The male differs from female only by the slender body and the green sutural stripe (golden in female). Aedeagus ( Fig. 30 ) is prolonged, narrowly spindle-shaped, parameres sharply pointed and somewhat curved apically, median lobe sharply pointed.

Length: 4.8–6.8 mm.

Distribution. Brasil (Bahia); French Guiana (new record).

Figures

Figs 1–8. Agrilaxia, dorsal aspect. 1 – Agrilaxia cacao sp. nov., holo- type ♀, 7.2 mm; 2 – A. bongrandi Cobos, 1972, J (Route de Cacao), 6.0 mm; 3 – A.claudei Cobos, 1972, ♀ (Bélizon), 8.0 mm; 4 – A. tristis Cobos, 1972, ♀ (Saul), 7.2 mm; 5 – A. elegans sp. nov., holotype J, 7.8 mm; 6 – A. cordicollis sp. nov., holotype J, 6.5 mm; 7 – A. glabra sp. nov., holotype ♀, 6.0 mm; 8 – A. sulcifrons sp. nov., holotype J, 6.1 mm.

Figs 17–29. 17–19 – anal tergites (17 – Agrilaxia glabra sp. nov., 18 – A. tristis sp. nov., 19 – A. caudata sp. nov.). 20–22 – anal ventrites (20 – A. glabra sp. nov., 21 – A. tristis sp. nov., 22 – A. caudata sp. nov.). 23 – most important diagnostic characters of Agrilaxia spp. (schematically): a – lateroposterior pronotal depressi- ons; b – basal pronotal tubercles; c – transverse basal depression; d – prognathous/ non-prognathous mouth parts; e – lateral margin of pronotum;f – “agriloid” carina; g – humeral swelling; h – elytral epipleura; i – posthumeral carina; j – anal ventrite; k – anal tergite. 24–29 – form of anterior prosternal margin, schematically (24 – flat or slightly convex, 25 – slightly grooved, 26 – deeply grooved, 27 – with longitudinal, lamelliform carina, 28 – with transverse rolled up carina, 29 – with medial perpendicular, peg-like spine). Not to scale.

Figs 30–39.Aedeagi. 30 – Agrilaxia tristis Cobos, 1972; 31 – A. elegans sp. nov.; 32 – A. cordicollis sp. nov.; 33 – A. sulcifrons sp. nov.; 34 – A. convexifrons sp. nov.; 35 – A. caudata sp. nov.; 36 – A. prolonga sp. nov.; 37 – A. guianensis sp. nov.; 38 – A. sp. A; 39 – A. sp. B. Not to same scale.