Anoreina helenae, Machado, Vanessa S. & Monné, Marcela L., 2011

Machado, Vanessa S. & Monné, Marcela L., 2011, Revision of Anoreina Bates (Coleoptera, Cerambycidae, Lamiinae), Zootaxa 2970, pp. 1-32 : 16-19

Anoreina helenae new species

( Figs 59 –67; 96; 111)

Male. Integument dark brown. Head with yellowish pubescence. Frons with two setae near inner margin of the lower eye lobe. Lower eye lobe about twice as wide as upper lobe. Apical segment of labial palps slightly longer than preceding and basal about 1/3 as long as following. Apical segment of about 1/3 longer than preceding. Maxillary palps decreasing in length towards apex. Antennae (Figs 10, 96) with sexual dimorphism, long, exceeding elytral apex at antennomere 7 in males and 8 in females. Scape and pedicel with yellowish pubescence; antennomeres 3–11 covered with brown pubescence, except antennomeres 4–6 with whitish pubescence on half or basal third.

Prothorax about twice as wide as long. Pronotum covered with yellowish pubescence, more concentrated in the median region and sides of prothorax, and sparse whitish pubescence. Pronotum anterior margin straight, without row of coarse punctures; one pair of coarse median punctures near posterior margin. Mesepisternum covered with whitish pubescence. Mesosternum and metepisternum covered with yellowish pubescence. Metasternum with a longitudinal median sulcus, not reaching the anterior margin. Scutellum with yellowish pubescence.

Elytra about 4.3 to 5.0 times as long as prothorax; apices rounded; covered with reddish or dark brown pubescence, except: postscutellum region with yellowish pubescence and basal third with spots of whitish pubescence; median band of whitish pubescence, which reaches the suture, little contrastive with the pubescence, bordered by yellowish pubescence; apical 1/4 with irregular spots of whitish and yellowish pubescence. Narrow longitudinal ridge follows the elytral suture from the median region to the apex. Legs with yellowish pubescence; tibiae apical half with dark brown pubescence and short black erect setae. Urosternite 5 rounded at apex in both sexes.

Male terminalia: sternite 8 membranous ( Fig. 60 ), except in the apical region, sinuous at apex; apophysis narrow and about 1/3 as long as sternite. Tergite 8 membranous ( Fig. 59 ) except at apex. Median lobe ( Figs 63–64 ) lightly curved; dorsal lobe as long as ventral, both acuminate at apex; basal apophyses as long as apical portion, rounded at apex; internal sac with one sclerotized piece distinctly curved and tapered at end. Tegmen ( Fig. 61 ) shorter than median lobe; apical region narrow and divided into lobes, rounded at apex with erect, long and short setae; ring piece elongate and truncate at apex. Ventral arc ( Fig. 62 ) fork-shaped, apophysis as long as arm; curved at apex.

FIGURES. 65–67. Female terminalia, Anoreina helenae sp. nov., 65, tergite 8 + segment 9; 66, sternite 8; 67, spermathecal complex. Scale= 1 mm.

Female terminalia: sternite 8 (Fig. 66) rectangular with one pair of tuft of short setae near apical margin; sternal apophysis about 4 times as long as apical region of the sternite. Segment 8 (Fig. 65) with tergal apodemes like two large plates; segment 9 (Fig. 65) membranous and shaped like an elongate sac, constituting the genital-anal chamber about 1/3 as long as sternal apophysis. Ovipositor (Fig. 67) long; distal region with narrow and elongate coxites; apical region with little cylindrical stylus. Spermathecal complex (Fig. 67): two triangular vaginal plates between common oviduct and bursa copulatrix, which is rounded at end. Spermathecal duct short and spermatheca curve and elongate at base, and rounded at the end. Spermathecal gland short about 1/3 as long as spermatheca.

Measurements, in mm, male/female. Total length, 4.8–6.1/5.9–6.0; prothorax length, 0.9–1.2/1.0; prothorax width, 1.5–1.9/1.7–1.9; elytral length, 3.4–4.5/4.3; humeral width, 2.0–2.5/2.4.

Etymology. The specific epithet is dedicated to the first author’s mother, Maria Helena Machado, in recognition and acknowledgment for all her support and encouragement.

Comments. Anoreina helenae ( Fig. 96 ) differs from all other species of the genus in having the lower eye lobe about twice as wide as the upper lobe, having the frons with two setae near the inner margin of the lower eye lobe, having the anterior margin of the pronotum without a row of coarse punctures, having the elytra with a median band of whitish pubescence reaching the suture, contrasting little with the pubescence, bordered by yellowish pubescence, and having the apical 1/4 with irregular spots of whitish and yellowish pubescence. Concerning the studies of male terminalia, Anoreina helenae has the median lobe only weakly curved, the dorsal lobe as long as ventral and both acuminate at apex, and the internal sac with one sclerotized piece distinctly curved and tapering toward apex.

Geographical distribution. Brazil (Mato Grosso, Rondônia) ( Fig. 111 ).

Type material. Holotype male, BRAZIL, Mato Grosso, Vera 12º46’S, 55º36’W, X.1973, Alvarenga & Roppa leg. ( MNRJ); Paratypes: Vera 12º46’S, 55º36’W, 4 males, X.1973, Alvarenga & Roppa leg. ( MNRJ); SINOP, 12º31’S, 55º37’W (BR 163) Km 500 a 600, male and female, X.1974, Alvarenga & Roppa leg. ( MNRJ); SINOP, 12º31’S, 55º37’W (BR 163) Km 500 a 600, male, X.1975, Alvarenga & Roppa leg. ( MNRJ); Rondônia: Vilhena, female, X.1990, O. Roppa & J. Becker leg. ( MNRJ).

FIGURES. 68–75. Male terminalia, Oreodera glauca glauca , 68, tergite 8; 69, sternite 8; 70, tegmen; 71, ventral arc; 72–73, median lobe dorsal, lateral. Female terminalia, 74, sternite 8; 75, spermathecal complex. Scale= 1 mm.

Figures

FIGURE 111. Map showing the geographical distribution of species Anoreina.

FIGURES 59 – 64. Male terminalia, Anoreina helenae sp. nov., 59, tergite 8; 60, sternite 8; 61, tegmen; 62, ventral arc; 63 – 64, median lobe dorsal, lateral.

FIGURES 96 – 101. 96, Anoreina helenae sp. nov. holotype male; 97, Anoreina roosevelti sp. nov. holotype male; 98, Anoreina triangularis (Martins & Galileo, 2005) holotype female, dorsal habitus; 99, ventral habitus; 100, fifth urosternite showing the longitudinal glabrous band; 101, labels.