Embates intermedius Prena, 2005

Prena, Jens, 2005, The Middle American species of Embates Chevrolat (Coleoptera: Curculionidae: Baridinae), Zootaxa 1100 (1), pp. 1-151 : 1-151

63. Embates intermedius Prena sp. n.

(Fig. 217, 249)

Holotype male (dissected), Panama, labeled: “ Panamá: Panamá Pr./ Cerro Campana , 850m / 8° 40' N, 79° 56' W / 27 Feb ‘71 H. Stockwell ”, “ 24 ♂ ”, “ Ambates #8” ( CMNC).

Paratypes 24 (19 males, 5 females), Panama, labeled: “as holotype except 25 May ‘74, 12 Sept. ‘70, 25 May ‘74, 8 Apr. ‘72, 22 Feb. ‘95, 31 Jul ‘74” ( CMNC, HPSC 5 ); “PAN­ AMA: Panama / Cerro Campana / 21 June 1981 / B. Gill 900 m ” ( HAHC 2 ); “ PANAMÁ: Panamá, / Cerro Campana/ VI­20­1985, E./ Riley & D. Rider ” ( JPPC); “ PANAMA: Panamá Prov./ Cerro Campana/ May 11–15, 1980: E.G./ Riley & D. LeDoux ” ( CWOB); “ PANAMA, Pan., 2700'/ Cerro Campana,/ May 13, 1978 CW & LB/ O’Brien & Marshall” ( CWOB 2 ); “ PANAMA / Cerro Campana”, “ V­8­1975 / H. Wolda ” ( CWOB); “Panamá: Panamá Pr./ Cerro Campana, 850M/ 8° 40' N 79° 56' W ”, “ 14.vii.1971 / H.A. Hespenheide ” ( CHAH); same label for locality except 9.ix.1974 / H.A. Hespenheide ( JPPC), 29.iv.1970 / H.A. Hespenheide ( CHAH); “Panamá: Panamá Pr./ Cerro Campana, 850m, / 8° 40' N 79° 56' W / 21 May ‘ 71 W. Bivin ” ( JPPC); “Panamá: Pmá Prov. / Cerro Campana , 850m, / 8° 40' N 79° 56' W / 27 May ‘ 72 W. Bivin ” ( JPPC); “ Panamá: Canal Zone / Madden Forest , Mi. 3.5/ 9° 05' N 79° 37' W ”, “15.VI.71/ PIPER ” ( JPPC); “ PANAMA: C. Z.;/ Madden Forest / 9° 05' N, 79° 27' W / 24 June 1971 / W. Bivin ” ( NMNH), same data except 29 July 1971 ( NMNH); “Panamá: Canal Zone / 5 mi NW Gamboa / 9° 09' N 79° 43' W ”, “ 27.II.1970 / H.A. Hespenheide ” ( CHAH); “ PANAMA: Panama Pr./ La Eneida, beyond/ Cerro Jefe, 700 m ”, “ 2­vii­1971 / H.A. Hespenheide ” ( CHAH) .

Description. Habitus: Fig. 217, total length 5.5–7.3 mm (m=6.4, n=20). Color: integument piceous, legs and antenna predominantly rufous; basic vestiture of small cupreous scales, ochreous scales condensed in broad dorsolateral vitta between head and elytral apices, in narrow dorsomedian pronotal vitta and along elytral striae 1 and (partially) 2; venter with light yellow scales along flank. Head: frontal fovea absent, rostrum slender, subcylindrical (as Fig. 211), sides attenuated between apex and antennal insertion, costate dorsomedially, basolateral margin moderately edged, length of rostrum ♂♂ 1.13–1.20 x (m=1.16, n=15), ♀♀ 1.17–1.21 x (m=1.19, n=5) pronotal length, length of ante­antennal portion ♂♂ 0.41–0.48 x (m=0.45, n=15), ♀♀ 0.47–0.49 x (m=0.48, n=5) total rostral length, dorsal margin of antennal scrobe reaching rostral base before eye; funicular segment 2 longer than 1, club oblong ovate. Pronotum: length 0.92–1.00 x (m=0.97, n=20) maximum width, sides subparallel in basal third, then roundly narrowed, anterior portion tubulate; disk densely punctate, intervals granulose. Elytra: length 1.74–1.89 x (m=1.83, n=20) width at humeri, width 1.27–1.35 x (m=1.31, n=20) maximum pronotal width, sides subparallel in basal fourth, then increasingly converging toward apex, apices rounded conjointly, preapical callus developed moderately, striae fine, punctures indistinct, interstriae flat, 9 costate. Legs: tibiae nearly straight, distally with cluster of cupreous hairs, tarsal claws arcuate and separate at base. Male: similar E. leucopleura , with basal appendage of aedeagal flagellum straight (as Fig. 216).

Plant association. Not known.

Distribution. Central Panama (Fig. 249).

Specific epithet. The name is a Latin compound adjective meaning “intermediate”.

Discussion. Embates intermedius is related very closely to E. leucopleura , with a color­pattern not unlikely that of E. belti . All three species co­occur in central Panama. Embates intermedius and E. leucopleura differ from each other in vestiture and color, while E. belti exhibits different body proportions. Genital differences are minor between all of them.