Teramocerus curtirostris, Mantilleri, 2015

Mantilleri, Antoine, 2015, What is Teramocerus Schoenherr, 1840? A new definition from revision and phylogeny of the group (Insecta, Coleoptera, Brentidae), Zoosystema 37 (2), pp. 285-322 : 302-304

Teramocerus curtirostris n. sp.

( Figs 4 E-F; 9K-N; 12D; 15E)

HOLOTYPE. — ♂, “ Guyane française, montagne des Chevaux , 4.II.2013, S. Brûlé, P.-H. Dalens & E. Poirier leg.; collection A. Mantilleri; Teramocerus curtirostris n. sp., A. Mantilleri det. 2014; holotype; MNHN-EC-EC4468”. Fig. 4F.

PARATYPES. — 1 ♂, idem holotype, 6.II.2011, MNHN-EC- EC4469 ; 1 ♀, idem holotype, 13.II.2011, prép. micro. n°AM00173, MNHN-EC-EC4470 ; 1 ♀, idem holotype, 20.II.2011, prép. micro. n°AM00178, MNHN-EC-EC4471 ; 1 ♂, Cayenne , Montabicourt 30, Muséum Paris 1952 coll. R. Oberthür, prép. micro. n°AM00259, MNHN-EC-EC4472 ; 1 ♂, ex musaeo Desbrochers 1913, Muséum Paris 1952 coll. R. Oberthür, MNHN-EC-EC4473 ; 1 ♂, Guyane franç., coll. A. Bonhoure 1909, MNHN-EC-EC4474 ; 1 ♂, Franc. Guyana, Roura, 21.XII.1998 - 8.I.1999, P. Krásenský leg, prép. micro. n°AM00250, MNHN-EC-EC4475 ; 1 ♀, idem holotype, 18.I.2009 (coll. AM) ; 1 ♀, idem holotype, 1.II.2011 (coll. AM) ; 1 ♂, idem holotype, 13.II.2011 (coll. AM) ; 1 ♀, idem holotype, 20.II.2011 (coll. AM) ; 1 ♀, idem holotype, 28.III.2011 (coll. AM) ; 1 ♂, idem holotype, 4.XII.2011 (coll. AM) ; 1 ♂, idem holotype, 3.I.2013 (coll. AM) ; 1 ♂, idem holotype, 27. I.2013 (coll. AM) ; 1 ♀, idem holotype, 4.II.2013 (coll. AM) ; 1 ♀, idem holotype, 16.II.2013 (coll. AM) ; 1 ♀, idem holotype, 24.II.2013 (coll. AM) ; 1 ♂, idem holotype, 27.II.2013 (coll. AM) ; 1 ♂ et 2 ♀, idem holotype, 11.III.2013 (coll. AM) ; 1 ♂, idem holotype, 24.III.2013 (coll. AM) .

TYPE LOCALITY. — French Guiana, montagne des Chevaux, 4°43’N, 52°25’W.

DISTRIBUTION. — French Guiana. See map ( Fig. 16D ).

ETYMOLOGY. — The adjectival specific epithet refers to the short length of metarostrum and mesorostrum of males compared to prorostrum.

DIAGNOSIS (MALES). — Elytra and pronotum metallic green; antennomeres 3-8 slightly longer than broad; mesorostrum and metarostrum together much less than 1.5 × longer than prorostrum; setae on venter of rostrum not reaching prorostrum; apical tooth of elytra not rimmed, section circular; first metatarsal segment not carinate on upper side; sternites III-IV of abdomen with narrow and deep longitudinal depression.

DESCRIPTION

Males

Measurements. Length of head (rostrum included): 4.0- 6.4 mm; length of body (from front margin of pronotum to apex of elytra): 10.5-15.2 mm; width across humeral calli: 1.7-2.6 mm. Elytra metallic green, pronotum and head with metallic sheen; first elytral interstriae often metallic purplish; rostrum, antennae and legs dark. Habitus: Fig. 4F .

Head. Prorostrum slightly shorter than metarostrum and mesorostrum together ( Fig. 9K ). Mesorostrum elevated, longitudinally grooved. Metarostrum not grooved, without median carina, not carinate on sides. Eyes quite large, as long as or slightly longer than temples. Head smooth, hardly tapering backwards, with weak inter-ocular fovea; collar constriction well marked. Sides and venter of head with few pores. Sides of metarostrum with few pores or pores missing, venter with two longitudinal rows of sensorial pores pubescent, reaching base of metarostrum, without median carina or grooves. Venter of prorostrum smooth.

Antennae. Antennae ( Fig. 9L ) with segments 2-8 longer than broad, subconical, with long setae; 9 less than 1.5 × longer than 8.

Thorax. Pronotum 2 × longer than broad, not punctate. Elytra not depressed at base of interstria 5; interstria 3 quite elevated at base. Apex of each elytron extended as one conical tooth not dorso-ventrally flattened, formed mainly by interstriae 9 and 11. Prosternum with few shallow punctures in front of bulging procoxae, area in front of procoxae slightly depressed. Mesothorax with few punctures on sides; mesanepisternum punctate; mesepimeron with confluent punctures. Metanepisternum with row of hardly distinct punctures. Legs with mesocoxae, metacoxae and trochanters setose; femora strongly pedunculate, not depressed laterally, glabrous except metafemora with hairs below at base.Tibiae quite long, hairy on inner side; apex of metatibia with short calcar on inner side. First tarsal segment shorter than 2-3 together; segment 2 slightly longer than broad ( Fig. 9M ).

Abdomen. Abdomen ( Fig. 9N ) with sternites III-IV glabrous, not punctate, with deep longitudinal groove in the median part; sternite VII finely punctate. Tegmen with parameroid lobes rounded at apex, with setae ( Fig. 12D ). Internal sac with one proximal hook-like sclerite pointed at apex, base enlarged with hole prolonged by a tube, allowing insertion of ejaculatory duct; very numerous tiny sclerifications and spicules on wall of internal sac ( Fig. 12D ).

Females

Measurements. Length from tip of rostrum to apex of elytra: 13.7-22.3 mm; Length of head (rostrum included): 3.9- 5.9 mm; length of body (from front margin of pronotum to apex of elytra): 9.6-16.2 mm; width across humeral calli: 1.7-2.8 mm. Dark metallic green except rostrum, antennae, first elytral interstriae and legs dark brown. Habitus: Fig. 4E .

Head. Mesorostrum elevated, slightly grooved longitudinally. Metarostrum without median carina, not carinate on sides, without paramedian grooves. Eyes longer than temples, quite bulging. Head foveate between the eyes, tapering backwards, collar constriction well distinct. Sides and venter of head with few large sensorial pores. Sides and venter of metarostrum with large sensorial pores, arranged in two rows below, reaching base of mesorostrum; no median elevated area separating both rows of pores.

Antennae. Antennae with segments 2-8 longer than broad, subconical, with few long setae; 9 less than 1.5 × longer than 8.

Thorax. Pronotum almost 2 × longer than broad, not punctate. Elytra not depressed at base of interstria 5; interstria 3 quite elevated at base. Apex of each elytron extended as one acute tooth formed mainly by interstriae 9 and 11. Prosternum with few large punctures in front of bulging procoxae, area in front of procoxae depressed. Mesothorax with few punctures on sides; mesanepisternum punctate; mesepimeron with deep confluent punctures. Metanepisternum with row of shallow punctures. Legs with mesocoxae, metacoxae and trochanters bearing setae; femora not or slightly depressed laterally at base, glabrous except metafemora with stiff hairs below at base. Tibiae quite long, hairy on inner side. First tarsal segment shorter than 2-3 together; segment 2 as long as broad.

Abdomen. Abdomen with sternites III-IV convex, glabrous, smooth except punctures in front part of sternite III along metacoxae, without groove. Coxites, genital tract and spermatheca: Fig. 15E ; vagina with transverse sclerifications.

Teramocerus forficula

( Soares & Scivittaro, 1972) n. comb. ( Figs 4 C-D; 9Q-V; 12E; 15A)

Proteramocerus forficula Soares & Scivittaro, 1972 a: 3 . — Sforzi & Bartolozzi 2004: 585.

TYPE MATERIAL. — ♂ holotype ( Fig. 4C ), “ Tabatinga [4°14’S, 69°56’W], Amazonas, Brasil, Nov. 1958, F. M.Oliveira; prép. micro. n°AM-MNRJ00004” ( MNRJ) ; 1 ♀ paratype, same data ( MNRJ) ; 2 ♂ and 4 ♀ paratypes, “ Rio Javari , B. Constant ” ( MZSP) ; 1 ♀ paratype, “ Obidos , XII.1961, Diringshofen ” ( MZSP); 1 ♂ paratype, “ FazendaTaperinha, prox. Santarém, 29.XII.1967 - 9.I.1968 ” ( MZSP) .

MATERIAL EXAMINED. — Brazil. ♂ holotype ( MNRJ) ; 3 ♂ and 1 ♀, Amaz., H. W. Bates, prép. micro. n°AM00235, AM00241, AM00263 ( MNHN) ; 1 ♂, Jatahy [17°53’S, 51°43’W], État de Goyaz, Ch. Pujol, 1895-96, prép. micro. n°AM00234 ( MNHN) ; 1 ♂, Jatahy ( MNHN) ; 1 ♂, Amazones , Fonteboa [2°31’S, 66°06’W], Dr Hahnel ( MNHN) ; 1 ♀, Teffé [3°21’S, 64°43’W], Amazonas, M. de Mathan, 1.I-31.III.1879, prép. micro. n°AM00273 ( MNHN) ; 1 ♂, Amazonas , Manaus, 1 km W Taruma Falls [3°04’S, 60°00’W], 11.I. 1981, 100 m, G. Ekis, primary forest, on bark ( MPEG) .

Peru. 1 ♀, Pérou, Huambo [9°39’S, 74°56’W], M. de Mathan ; prép. micro. n°AM00269 ( MNHN).

DISTRIBUTION. — Brazil, Peru. See map ( Fig. 16B ).

DESCRIPTION

Males

Measurements. Length of head (rostrum included): 4.0- 10.7 mm; length of body (from front margin of pronotum to apex of elytra): 7.8-17.8 mm; width across humeral calli: 1.4- 3.1 mm. Head, pronotum and elytra with green metallic glints; rostrum, antennae and legs reddish. Habitus: Fig. 4C .

Head. Prorostrum much shorter than metarostrum and mesorostrum together. Mesorostrum grooved, without lateral grooves. Metarostrum carinate on sides, without median groove but with longitudinal carina on all length. Eyes quite large, as long as or longer than temples. Head longer than broad, not or hardly foveate between eyes, tapering backward. Sides of head and metarostrum with sensorial pores. Venter of head with numerous sensorial pores. Metarostrum, mesorostrum and base of prorostrum with numerous small sensorial pores, arranged somewhat in a confuse way, with quite long setae, without smooth median area.Venter of prorostrum not carinate.

Antennae. Antennae with segments much longer than broad, becoming longer from base to apex of antennae; segments 9-11 with numerous short setae, long setae almost completely missing; segments 9-10 slightly longer than 8.

Thorax. Pronotum elongate, smooth. Elytra hardly depressed at base of interstria 5; stria 1 well distinct from base to apex; stria 2 less deep, not reaching exactly base of elytra and forming row of punctures at apex; stria 9 well distinct behind, very large and punctate at apex, weakly distinct and in form of punctures at base. Apex of each elytron as one tooth often very acute, formed by interstriae 9 and 11 ( Fig. 9T ), interstria 3 sometimes connected to 9 ( Fig. 9S ). Prosternum not depressed in front of bulging procoxae, with few large punctures in front of them. Mesothorax punctate on sides and in front of mesocoxae. Mesanepisternum with coarse punctations; mesepimeron with few large punctations. Metanepisternum with longitudinal line of shallow punctations. Legs with meso- and metacoxae with small tuft of setae, trochanters with one or two raised yellowish setae; femora very long, metafemora with stiff reddish setae on venter side; apex of metatibia with one quite acute calcar on inner side ( Fig. 9U ); first tarsal segment shorter than 2-3 together; segment 2 longer than broad.

Abdomen. Abdomen ( Fig. 9V ) elongate, smooth, with a median groove on sternites III-IV and few yellowish setae. Tegmen with parameroid lobes elongate, quite rounded at apex, with few apical setae ( Fig. 12E ). Internal sac with two types of sclerites: proximally, one large hook-like sclerite with swollen base; more rearward, two clusters of small spicules arranged without order, most proximal one with smallest spicules ( Fig. 12E ).

DESCRIPTION

Females

Measurements. Length of head (rostrum included): 4.6- 6.5 mm; length of body (from front margin of pronotum to apex of elytra): 10.4-15.9 mm; width across humeral calli: 1.9- 2.7 mm. Pattern of coloration as in males. Habitus: Fig. 4D .

Mesorostrum. Mesorostrum elevated, slightly grooved longitudinally. Metarostrum slightly elevated at middle, not carinate on sides, without paramedian grooves. Eyes longer than temples, quite bulging. Head foveate between eyes, tapering backwards, collar constriction well distinct ( Fig. 4Q ). Sides and venter of head with large sensorial pores. Sides and venter of metarostrum with large sensorial pores, arranged in two rows below, reaching mesorostrum; smooth but not elevated median area separating both rows of pores.

Antennae. Antennae ( Fig. 4R ) with segments 2-8 slightly longer than broad, subconical, with few long setae; 9 less than 1.5 × longer than 8.

Thorax. Pronotum 2 × longer than broad, microreticulate, not punctate. Elytra weakly depressed at base of interstria 5. Apex of each elytron extended as one very acute tooth formed mainly by interstria 9 and 11. Prosternum with few large punctures in front of bulging procoxae, area in front of procoxae depressed. Mesothorax with few punctures on sides; mesanepisternum with large punctures; mesepimeron with deep confluent punctures. Metanepisternum with row of punctures.Legs with trochanters bearing one or two raised seta; femora not depressed laterally, glabrous except metafemora with few hairs below at base.Tibiae quite long, hairy on inner side. First tarsal segment shorter than 2-3 together; segment 2 slightly longer than broad.

Abdomen. Abdomen with sternites III-IV convex, glabrous, smooth except punctures in front part of sternite III along metacoxae, without groove. Spermatheca and coxites: Fig. 15A ; vagina sclerified.

REMARKS

Because of the synonymy of Proteramocerus with Teramocerus , and because of the characters of male genitalia, P. forficula is transferred to Teramocerus , leading to the following new combination: Teramocerus forficula ( Soares & Scivittaro, 1972) n. comb.

Figures

FIG. 4. — A, B, Teramocerus brulei n. sp.: A, ♂ holotype; B, ♀ paratype; C, D, T. forficula (Soares & Scivittaro, 1972) n. comb.: C, ♂ holotype; D, ♀; E, F, T. curti- rostris n. sp.: E, ♀ paratype; F, ♂ holotype; G, T. amazonicus n. sp.,♂ holotype; H, T. trichosternon n. sp.,♂ holotype. Scale bar: 5 mm.

FIG. 16. — Distribution maps of the specimens of Teramocerus examined: A, T. suturalis (Lund, 1800) n. comb., T. appendiculatus (Soares & Scivittaro, 1972), T. eletus Kleine, 1927 and T. zellibori (Soares & Dias, 1971) n. comb.; B, T. badius Boheman, 1840 comb. rev., T. forficula n. comb. and T. janthinus Boheman, 1840; C, T. opacus (Perty, 1832) n. comb., T. pulchellus Perroud, 1853, T. pulcher (Soares & Dias, 1971) n. comb. and T. pulchriformis n. sp.; D, T. brulei n. sp., T. curtirostris n. sp., T. trichosternon n. sp. and T. amazonicus n. sp.

FIG. 9. — A-E, Teramocerus amazonicus n. sp.,♂: A, left antenna; B, apex of metatibia; C, apex of right elytra, dorsal side; D, metatarsi, upper side; E, abdomen; F-J, T. brulei n. sp.,♂: F, head, dorsal side; G, left antenna; H, apex of right elytra, dorsal side; I, metatarsi, upper side; J, abdomen; K-N, T. curtirostris n. sp.,♂: K, head, dorsal side; L, left antenna; M, metatarsi,upper side; N, abdomen; O-P, T. trichosternon n. sp.,♂: O, metatarsi, upper side; P, abdomen; Q-V, T. forficula n. comb.; Q, ♀, head, dorsal side; R, ♀, left antenna; S-T,♂, apex of right elytra, dorsal side; U, ♂, apex of metatibia; V, ♂, abdomen. Scale bar: A-C, F-G, J-L, N, P-R, V, 2 mm; D-E, H, I, M, O, S-U, 1 mm.

FIG. 12. — Teramocerus spp.,♂, genitalia; A, T. brulei n. sp., holotype (tegmen and penis); B, T. amazonicus n. sp., holotype (tegmen and penis); C, T. trichoster- non n. sp., holotype (tegmen and penis); D, T. curtirostris n. sp., paratype (tegmen and penis); E, T. forficula (Soares & Scivittaro, 1972) n. comb. (tegmen and penis). Scale bar: 1 mm.

FIG. 15. — Teramocerus spp.,♀: A, T. forficula n. comb.,genital tract; B-D, T. brulei n. sp.: B, tergite VIII; C, epipleurites VIII; D, genital tract; E, T. curtirostris n. sp., genital tract. Scale bars: 1 mm.