Agra not Erwin, new species

(Figs. 4a, 4 b, 4c, 4d)

Holotype. 1m, Limón, R.B. Hitoy Cerere, Estacíon Hitoy Cerere, Sendero Bobocara, 300m, LN 184250,1641800, May­June, (F. Umana)( INBIO: ADP103257).

Diagnosis. This is the only species of the cajennensis species­group in Costa Rica with interneurs with large blue­tinted fovea and elytral apex (Fig. 7 b) straight between sutural and lateral dentiform projections. Narrow with robust legs, quadrate head, and markedly convex pronotum.

Description. Color and luster: Piceous. Appendages bright ferruginous. Surface very shiny; elytral interneur foveae with blue­tinted metallic reflections. Medium­sized and narrow, females with slightly broader elytra. Head (Fig. 4a) behind eyes small and narrow, rounded in female, tapered in male, shorter than prothorax. Prothorax moderately short and medially swollen, gradually constricted with sides convergent to anterior collar. Elytra (Fig. 4 b) narrow and moderately convex, apex slightly oblique, lateral tooth prominent, sutural angle acute. Abdominal sternum VI (Fig. 4 c) deeply V­notched in male, shallowly U­notched in female. Aedeagus (Fig. 4 d) with ostium moderately short, apex simple, cordiform. Size: medium, 12.9 to 14.6mm in length, 2.8 to 3.4mm in width.

Other specimens examined. Costa Rica: 5 paratypes, females, from the Pacifico Central Conservation Area: 1f, Cartago, 1.6 km N Turrialba, CATIE, 600m, LN 574947,208307, January, (V.M. Kirk)(UASM: ADP21815); 2f, Heredia, Estacíon La Selva, 10º27'N 83º59'W, April, (R.Vargas & D. Brenes)( INBio: CRI 002­416950), November, ( INBIO: CRI 002­232193); 1f, Limón, R.B. Hitoy Cerere, Estacíon Hitoy Cerere, Send. Bobocara, 300M, LN 184250,1641800, May­June, (F. Umana)( INBIO: ADP103259); 1f, Puntarenas, 4.0 km N San Isidro de El General, 84°48'W, 10°18'N, July, (F.T. Hovore)(FTHC: ADP6429).

Specific epithet. The specific epithet, not, is an arbitrary combination of letters.

Notes. This species has been historically confused with A. castaneipes Bates because Bates’ type series from the Volcán de Chiriqui contains two species. A. castaneipes adults are generally larger, and markedly darker in color without the blue­tinted interneural foveae.