Teramocerus trichosternon, 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: 304-315

publication ID

http://doi.org/ 10.5252/z2015n2a1

publication LSID

lsid:zoobank.org:pub:urn:lsid:zoobank.org:pub:153F755B-D1DD-4B27-9AC8-B7ECA6F09746

persistent identifier

http://treatment.plazi.org/id/C09BE359-A725-4A6C-B8B6-CC21AA8F7550

taxon LSID

lsid:zoobank.org:act:C09BE359-A725-4A6C-B8B6-CC21AA8F7550

treatment provided by

Felipe

scientific name

Teramocerus trichosternon
status

n. sp.

Teramocerus trichosternon   n. sp.

( Figs 4H View FIG ; 9 View FIG O-P; 12C)

HOLOTYPE. — ♂, “Sto Paulo d’Olivença [3°27’S, 68°56’W], Amazones, M. de Mathan; Muséum Paris, 1952, coll. R. Oberthür; prép. micro. n°AM00337; Teramocerus trichosternon   n. sp., A. Mantilleri det. 2014; holotype; MNHN-EC-EC4466”. Fig. 4H. View FIG GoogleMaps  

PARATYPE. — 1 ♂, “ Brésil, prov. Mato Grosso, P. Germain 1886; Muséum Paris, 1952, coll. R. Oberthür; MNHN-EC-EC4467”   .

TYPE LOCALITY. — Brazil, Amazonas, São Paulo de Olivença, 3°27’S, 68°56’W.

DISTRIBUTION. — Brazil (Amazonian Basin). See map ( Fig. 16D View FIG ).

ETYMOLOGY. — The specific epithet derives from the strongly hairy sternites III-IV of abdomen.

DIAGNOSIS (MALES). — Dark metallic species; 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 large, shallow and strongly pubescent longitudinal depression.

DESCRIPTION

Males

Measurements. Length of head (rostrum included): 3.9- 4.1 mm; length of body (from front margin of pronotum to apex of elytra): 8.9-9.1 mm; width across humeral calli: 1.5- 1.6 mm. Elytra metallic green, pronotum and head metallic green (paratype) or not metallic (holotype); rostrum, antennae, legs and elytral sutura reddish. Fig. 4H View FIG .

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

Antennae. Antennae with segments 2-8 short, slightly 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 the base of interstria 5; interstria 3 quite elevated at base. Apex of each elytron as one conical tooth not dorso-ventrally flattened, formed mainly by interstria 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; calcar on inner side at apex of metatibia quite acute. First tarsal segment shorter than 2-3 together ( Fig. 9O View FIG ); segment 2 slightly longer than broad.

Abdomen. Abdomen ( Fig. 9P View FIG ) with sternites III-IV longitudinally depressed along midline, depression not very deep; sternite III strongly hairy in depression; sternite VII with very fine punctures.Tegmen with parameroid lobes rounded at apex, with few setae ( Fig. 12C View FIG ). Internal sac with one proximal hook-like sclerite acute at apex, enlarged and with hole at base, allowing insertion of ejaculatory duct; few tiny sclerifications proximally on wall of internal sac, and small spicules rearward ( Fig. 12C View FIG ).

Females

Females unknown.

Teramocerus pulchellus Perroud, 1853   ( Figs 6 View FIG B-D; 10L-O; 14A)

Teramocerus pulchellus Perroud, 1853: 450   . — Schönfeldt 1908: 70. — Blackwelder 1947: 774. — Sforzi & Bartolozzi 2004: 590.

TYPE MATERIAL. — ♂ holotype ( Fig. 6B View FIG ), “ pulchellus Perroud, Cayenne   [4°55’N 52°20’W]; nova species; type; ex coll. B. P. Perroud; Muséum Paris, 1958, coll. M. Pic; prép. micro. n°AM00167; MNHN-EC-EC2825” ( MNHN) GoogleMaps   .

MATERIAL EXAMINED. — French Guiana. ♂ holotype T. pulchellus (MNHN)     ; 1 ♂, coll. C. Bar, prép. micro. n°AM00330 ( MNHN)   ; 1 ♀, montagne des Chevaux [4°43’N 52°25’W], 8.II.2009, S. Brûlé, P.-H. Dalens & E. Poirier leg. (coll. AM) GoogleMaps   ; 1 ♂, idem, 15.II.2009, prép. micro.n°AM00168 ( MNHN) GoogleMaps   ; 1 ♀, idem, 25.I.2009 (coll.AM) GoogleMaps   ; 1 ♀, idem, 19.II.2009 (coll. AM) GoogleMaps   ; 2 ♀, idem, 23.II.2009, prép. micro. n°AM00169 and AM00171 ( MNHN) GoogleMaps   ; 1 ♂ and 1 ♀, idem, 19.XII.2009 (coll. AM) GoogleMaps   ; 1 ♂ and 1 ♀, idem, 28.XII.2009 (coll. AM) GoogleMaps   ; 3 ♂, idem, 9.I.2010, prép. micro. n°AM00170 ( MNHN, coll. AM) GoogleMaps   ; 2 ♀, idem, 3.I.2010 (coll. AM) GoogleMaps   ; 1 ♀, idem, 24.I.2010 (coll. AM) GoogleMaps   ; 1 ♂, idem, 19.XII.2010 (coll. AM) GoogleMaps   ; 1 ♂, idem, 7.II.2011 (coll. AM) GoogleMaps   ; 1 ♂ and 1 ♀, idem, 4.XII.2011 (coll. AM) GoogleMaps   ; 1 ♀, idem, 24.XII.2011 (coll. AM) GoogleMaps   ; 1 ♀, idem, 31.XII.2011 (coll. AM) GoogleMaps   ; 1 ♂ and 1 ♀, idem, 7.I.2012 (coll. AM) GoogleMaps   ; 2 ♀, idem, 14.I.2012 (coll. AM) GoogleMaps   ; 1 ♂ and 2 ♀, idem, 22.I.2012 (coll. AM) GoogleMaps   ; 2 ♀, idem, 5.II.2012 (coll. AM) GoogleMaps   ; 1 ♀, idem, 19.II.2012 (coll. AM) GoogleMaps   ; 1 ♀, idem, 3.I.2013 (coll. AM) GoogleMaps   ; 1 ♂, idem, 24.III.2013 (coll. AM) GoogleMaps   ; 1 ♂, réserve des Nouragues [4°04’N, 52°44’W], 19.II.2009, S. Brûlé, P.-H. Dalens & E. Poirier leg. ( MNHN) GoogleMaps   ; 1 ♀, idem, 5.II.2010 (coll. AM) GoogleMaps   .

DISTRIBUTION. — French Guiana. The occurrence in Brazil ( Sforzi & Bartolozzi 2004: 590) has not been verified. See map ( Fig. 16C View FIG ).

DESCRIPTION

Males

Measurements. Length of head (rostrum included): 4.4- 10.2 mm; length of body (from front margin of pronotum to apex of elytra): 7.5-16.3 mm; width across humeral calli: 1.4-2.4 mm. Metallic green except rostrum, base of pronotum and elytral sutura; legs and antennae dark, last segments of antennae often brownish in fresh specimens; elytral sutura dark brownish to metallic violet. Habitus: Fig. 6B,C View FIG .

Head. Prorostrum much shorter than metarostrum and mesorostrum together ( Fig. 10L View FIG ). Mesorostrum elevated, longitudinally grooved. Metarostrum not grooved, with weak median carina, carinate on sides. Eyes quite large but shorter than temples. Head smooth, tapering backwards, with interocular fovea; collar constriction well marked. Sides of head with few pores ( Fig. 10M View FIG ); venter with two rows of pores below eyes. Sides of metarostrum smooth, venter with two longitudinal rows of small sensorial pores weakly pubescent, reaching base of mesorostrum or prorostrum, without median carina or grooves. Venter of prorostrum smooth.

Antennae. Antennae with segments 2-8 longer than broad, subconical, with long setae; 9 less than 1.5 × longer than 8. Thorax. Pronotum more than 2 × longer than broad, not punctate. Elytra depressed at base of interstria 5. Apex of each elytron as one large dorso-ventrally flattened and rimmed tooth ( Fig. 10O View FIG ), 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 punctures. Legs with meso- and metacoxae bearing few setae; trochanters with one or two setae; femora strongly pedunculate, not depressed laterally, glabrous except metafemora with few hairs below at base. Tibiae quite long, hairy on inner side; calcar on inner side at apex of metatibiae quite acute. First tarsal segment shorter than 2-3 together; segment 2 longer than broad.

Abdomen. Abdomen ( Fig. 10K View FIG ) with sternites III with very thin hair, IV glabrous; sternites III-IV smooth, with not very deep longitudinal median depression. Sternites VIII and IX: Fig. 14A View FIG . Tegmen with parameroid lobes rounded at apex, with few setae ( Fig. 14A View FIG ). Internal sac with one proximal hook-like sclerite truncate at apex, and most rearward with few spicules ( Fig. 14A View FIG ).

Females

Measurements. Length from tip of rostrum to apex of elytra: 11.0- 22.2 mm; Length of head (rostrum included): 3.5-5.9 mm; length of body (from front margin of pronotum to apex of elytra): 8.4-16.2 mm; width across humeral calli: 14.7-24.4 mm. Pattern of coloration as in males. Habitus: Fig. 6D View FIG .

Head. Mesorostrum weakly elevated, hardly grooved longitudinally. Metarostrum with weak longitudinal elevation at middle, not carinate on sides, without paramedian grooves. Eyes as long as temples, quite bulging. Head weakly foveate between eyes, tapering backwards, collar constriction well distinct. Sides of head and metarostrum with sensorial pores. Venter of head with few sensorial pores forming two rows below eyes. Venter of metarostrum with two rows of pores reaching base of mesorostrum; no median elevated area separating both rows of pores.

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

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

Abdomen. Abdomen with sternites III-IV convex, glabrous, smooth except punctures in front part of sternite III along metacoxae, without groove. Vagina not sclerified.

Teramocerus pulcher 

( Soares & Dias, 1971) n. comb. ( Figs 6A View FIG ; 14B View FIG )

Proteramocerus pulcher Soares & Dias, 1971: 67   . — Sforzi & Bartolozzi 2004: 587.

TYPE MATERIAL. — ♂ holotype, “ Santarém [2°27’S, 54°43’W], Mujó, XII.1921, H. C. Boy ” ( IPEACS) [not examined] GoogleMaps   ; 1 ♂ paratype, “ Mangabeira , Mocajuba, 1953, O. M. Rego ” ( MNRJ) GoogleMaps   ; 1 ♂ paratype, “Xingu” ( MNRJ)   ; 2 ♂ and 2 ♀ paratypes, “ Macapá , I.1958 ” ( MNRJ)   ; 1 ♂ paratype, “ Benjamin Constant , XI.1962, A. Silva ” ( MZSP)   ; 1 ♂ paratype, “ Benjamin Constant , Rio Javari, XII.1960, Diringshofen” ( MZSP)   ; 1 ♂ paratype, “ Manaus , XII.1958, C. Elias ” ( MNRJ)   ; 3 ♂ paratypes, “Tabatinga, F. M. Oliveira” ( MNRJ)   ; 1 ♂ paratype ( Fig. 6A View FIG ), Sao Carlos , Porto Velho, Terr. Guaporé [9°04’S, 64°06’W], XII.1944, A. Parko, prép. micro. n°AM-MNRJ00009” ( MNRJ) GoogleMaps   .

MATERIAL EXAMINED. — Brazil. ♂ paratype P. pulcher   , Sao Carlos, Porto Velho, Terr. Guaporé [9°04’S, 64°06’W], XII.1944, A. Parko, prép. micro. n°AM-MNRJ00009” ( MNRJ) GoogleMaps   ; 6 ♂, Teffé [3°21’S, 64°43’W], Amazonas, M. de Mathan, X.1878 - III.1879, prép. micro. n°AM00238, AM00240 and AM00262 ( MNHN) GoogleMaps   ; 1 ♂, Ega [= Teffé], ex musaeo H. W. Bates 1893 ( MNHN)   .

DISTRIBUTION. — Brazil (Amazonian Basin). See map ( Fig. 16C View FIG ).

DESCRIPTION

Males

Measurements. Length of head (rostrum included): 4.6- 10.1 mm; length of body (from front margin of pronotum to apex of elytra): 8.6-15.9 mm; width across humeral calli: 1.3-2.4 mm. Metallic green except rostrum, base of pronotum and elytral sutura reddish. Habitus: Fig. 6A View FIG .

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

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

Thorax. Pronotum more than 2 × longer than broad, not punctate. Elytra depressed at base of interstria 5. Apex of each elytron as one large dorso-ventrally flattened and rimmed 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 punctures. Legs with mesocoxae, metacoxae and trochanters bearing few setae; femora strongly pedunculate, not depressed laterally, glabrous except metafemora with few hairs below at base. Tibiae quite long, hairy on inner side; calcar on inner side at apex of metatibiae quite acute. First tarsal segment shorter than 2-3 together; segment 2 longer than broad.

Abdomen. Abdomen with sternites III with very thin hair, IV glabrous; sternites III-IV smooth, with quite large and shallow longitudinal median depression. Tegmen with parameroid lobes rounded at apex, with few setae ( Fig. 14B View FIG ). Internal sac with one proximal hook-like sclerite truncate at apex, and most rearward with few spicules ( Fig. 14B View FIG ).

Females

I am not able to attribute with certainty any of the female examined to this taxon, and I was not able to examine any of the two female paratypes.

REMARK

Because of the synonymy of Proteramocerus   with Teramocerus   , and because of the characters of male genitalia, P. pulcher   is transferred to Teramocerus   , tleading to the following new combination: Teramocerus pulcher (Soares Dias, 1971)   n. comb.

MNHN

Museum National d'Histoire Naturelle

MNRJ

Museu Nacional/Universidade Federal de Rio de Janeiro

MZSP

Sao Paulo, Museu de Zoologia da Universidade de Sao Paulo

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Brentidae

Genus

Teramocerus

Loc

Teramocerus trichosternon

Mantilleri, Antoine 2015
2015
Loc

Proteramocerus pulcher

SFORZI A. & BARTOLOZZI L. 2004: 587
SOARES B. A. M. & DIAS S. M. 1971: 67
1971
Loc

Teramocerus pulchellus Perroud, 1853: 450

SFORZI A. & BARTOLOZZI L. 2004: 590
BLACKWELDER R. E. 1947: 774
SCHONFELDT H. & VON 1908: 70
PERROUD B. P. 1853: 450
1853