Amphicnaeia bezarki Wappes, Santos-Silva and Galileo, 2019

Wappes, James E., Santos-Silva, Antonio & Galileo, Maria Helena M., 2019, Synonymies, a new combination, and four new species in Amphicnaeia Bates (Coleoptera: Cerambycidae: Lamiinae), Insecta Mundi 703 (703), pp. 1-18 : 4-5

Amphicnaeia bezarki Wappes, Santos-Silva and Galileo , new species

( Fig. 5–12 )

Description. Male ( Fig. 5–8 ). Head dark-brown; apex of last palpomeres yellowish-brown; sides of postclypeus, parts of anteclypeus, and wide posterior area of labrum dark reddish-brown; apex of labrum pale-yellow; scape and pedicel mostly brownish, slightly lighter toward apex; antennomere III dark reddish-brown basally, gradually brown toward apex; antennomere III yellowish-brown in basal half, gradually brownish toward apex; remaining antennomeres with narrow yellowish ring basally, reddish-brown about basal third, gradually brownish toward apex (gradually darker toward distal segments); prothorax mostly dark-brown, with anterior and posterior area of pronotum, anterosuperior area of sides of prothorax, and parts of prosternum orangish; ventral surface of meso- and metathorax mostly reddish-brown, with punctures dark-brown; femora light reddish-brown (more yellowish-brown depending on light intensity) basally and posteriorly, dark-brown in remaining surface; tibiae yellowishbrown basally, dark-brown toward apex (this latter area gradually smaller from pro- to metatibiae); tarsi brownish, with basal area of tarsomere I lighter; abdominal ventrites I–III dark-brown; abdominal ventrite IV dark reddish-brown; abdominal ventrite V mostly light reddish-brown; elytra dark-brown except the following orangish areas: narrow basal area, not involving humeri, surrounding scutellum; wide band starting close to humerus, fused with basal orangish area, following obliquely in basal quarter, then following longitudinally close to suture (this latter area wider); oblique band laterally, fused with the former band before its apex, following upward toward epipleural margin, then following backward along epipleural margin toward apex (partially reddish-brown in some areas; narrowed close to apex); nearly V-shaped macula in distal quarter, following along suture toward anterior longitudinal band (reddish-brown in area of connection); narrow, somewhat irregular area in apex.

Head. Frons finely, moderately sparsely punctate; with pale-yellow pubescence not obscuring integu- ment (white depending on light intensity). Vertex and area behind eyes with sculpturing as on frons; pubescence denser, yellower than on frons. Antennal tubercles with sparse punctures, finer than on frons; pubescence as on frons. Genae finely, sparsely punctate close to eye, smooth in remaining surface; with sparse yellowish pubescence close to eye, glabrous in remaining surface. Postclypeus with sculpturing and pubescence as on frons; with one long dark seta on each side. Distance between upper eye lobes 0.15 times length of scape; in frontal view, distance between lower eye lobes 0.70 times length of scape. Antennae 1.9 times elytral length, reaching elytral apex at posterior third of antennomere VIII. Scape asperous, more distinctly dorsally near apex; with pale-yellow pubescence not obscuring integument. Pedicel and antennomeres III–X with long, erect, thick, dark setae ventrally; antennomeres IV–XI with sparse, short, erect, whitish setae throughout. Antennal formula (ratio) based on length of antennomere III: scape = 1.56; pedicel = 0.37; IV = 1.75; V = 1.56; VI = 1.50; VII = 1.50; VIII = 1.31; IX = 1.25; X = 1.19; XI = 1.19.

Thorax. Prothorax slightly wider than long; parallel-sided from anterolateral angles to behind midlength, then abruptly narrowed. Pronotum coarsely, abundantly punctate; with yellowish pubescence not obscuring integument, along central area bristly pubescence denser, slightly denser laterally. Sides of prothorax with sculpturing as on pronotum; with yellowish-white pubescence, abundant but not obscuring integument toward pronotum, slightly denser toward prosternum. Ventral surface of thorax with yellowish-white pubescence, distinctly denser laterally, especially on metanepisternum and sides of metaventrite. Narrowest area of prosternal process about one-third width of procoxal cavity. Narrowest area of mesoventral process about 0.3 times width of mesocoxal cavity. Scutellum with yellowish pubescence nearly obscuring integument. Elytra. Coarsely, abundantly punctate in basal 2/3, slightly finer, sparser in distal third; with yellowish pubescence not obscuring integument on light areas, brown- ish on dark areas; with long, erect, thick, dark setae throughout; apex nearly truncate. Legs. Femora with yellowish-white pubescence not obscuring integument. Tibiae with yellowish-white pubescence not obscuring integument, bristly from midlength, especially on metatibiae; dorsal surface of mesotibiae with brownish, bristly pubescence in distal third.

Abdomen. Ventrites I–IV with whitish pubescence centrally, not obscuring integument, yellower, slightly denser laterally; ventrite V with sparse yellowish-white pubescence; distal margin of ventrite V nearly truncate.

Female ( Fig. 9–12 ). Antennae mostly brown; prothorax, and ventral surface of meso- and metathorax entirely dark brown; pubescence in basal 2/3 of the elytra forming distinct longitudinal rows.

Dimensions (mm) holotype male/ paratype female. Total length 3.80/4.05; prothoracic length 0.75/0.75; anterior prothoracic width 0.75/0.80; posterior prothoracic width 0.70/0.75; maximum prothoracic width 0.80/0.85; humeral width 1.15/1.20; elytral length 2.70/2.90.

Type material. Holotype male from VENEZUELA, Trujillo: Old road (7360′, 43 km E Trujillo), 06.VIII.1988, C. and L. O’Brien, and G. Wibmer col. ( FSCA, formerly ACMT) . Paratype female, same data as holotype except 05.VIII.1988 ( ACMT) .

Remarks. Amphicnaeia bezarki new species differs from A. antennata as follows: prothorax parallel-sided anteriorly ( Fig. 7 , 9 ); elytra with distinct contrasting light areas ( Fig. 7 , 9 ); basal area of the elytra, on sides of scutellum, with distinct, longitudinal, sparsely pubescent bands ( Fig. 7 , 9 ); prosternal process and mesoventral process ( Fig. 8 , 10 ) wider centrally. In A. antennata , the prothorax is not parallel-sided anteriorly ( Fig. 15 ), elytra without distinctly contrasting light areas ( Fig. 15 ), basal area of the elytra, on sides of scutellum, without longitudinal sparsely pubescent bands ( Fig. 15 ), prosternal process and mesoventral process ( Fig. 16 ) narrower centrally. Amphicnaeia bezarki differs from A. lineata ( Fig. 27–28 ) and A. martinsi Galileo, 2015 (see photograph of the holotype at Bezark 2019) by the elytra with wide, oblique orangish band anteriorly, from humerus to middle of dorsal surface (absent in A. lineata and A. martinsi ).

Etymology. It is a pleasure to name this species for Larry Bezark, Sacramento, California, who through his websites illustrating the adult habitus of Cerambycidae species, his Checklist of the Oxypeltidae , Vesperidae , Disteniidae and Cerambycidae of the Western Hemisphere and his taxonomic publications contributes immeasurably to taxonomists, collectors and other workers studying New World Cerambycidae .

Figures

Figures 1–8. Amphicnaeia spp. 1–4) Amphicnaeia panamensis, holotype male. 1) Dorsal habitus. 2) Ventral habitus. 3) Lateral habitus. 4) Head, frontal view. 5–8) Amphicnaeia bezarki, holotype male. 5) Lateral habitus. 6) Head, frontal view. 7) Dorsal habitus. 8) Ventral habitus.

Figures 9–14. Amphicnaeia spp. 9–12) Amphicnaeia bezarki, paratype female. 9) Dorsal habitus. 10) Ventral habitus. 11) Lateral habitus. 12) Head, frontal view. 13) Amphicnaeia villosula, holotype, dorsal habitus. 14) Amphicnaeia vitticollis, holotype, dorsal habitus.

Figures 15–21. Amphicnaeia spp. 15–17) Amphicnaeia antennata, holotype male. 15) Dorsal habitus. 16) Ventral habitus. 17) Head, side view. 18–21) Amphicnaeia fuscofasciata, holotype male. 18) Lateral habitus. 19) Head, frontal view. 20) Dorsal habitus. 21) Ventral habitus.

Figures 22–28. Amphicnaeia spp. 22–26) Amphicnaeia rileyi. 22) Dorsal habitus, holotype male. 23) Ventral habitus, holotype male. 24) Lateral habitus, holotype male. 25) Head, frontal view, holotype male. 26) Dorsal habitus, paratype female. 27) Amphicnaeia affinis, holotype, dorsal habitus. 28) Amphicnaeia lineata, holotype, dorsal habitus.