Microtrachelizus altostriatus, Mantilleri, 2011

Mantilleri, Antoine, 2011, Revision of the Tribe Microtrachelizini Zimmerman, 1994, from Australia: New Taxa and Records (Insecta: Coleoptera, Brentidae), Records of the Australian Museum 63 (1), pp. 89-98: 96

publication ID

http://doi.org/ 10.3853/j.0067-1975.63.2011.1555

persistent identifier

http://treatment.plazi.org/id/03A187A0-FFF3-FF83-39BF-FCA4FB4B4CB6

treatment provided by

Felipe

scientific name

Microtrachelizus altostriatus
status

n.sp.

Microtrachelizus altostriatus   n.sp.

Microtrachelizus species 4   , Zimmerman, 1991: 151; 1994: 195.

Type material. HOLOTYPE ♂, Cape York Pen., N. Q., Iron Range , 15 Sept. 1974, Coll. A. & M. Walford-Huggins ( ANIC)   . PARATYPE ♂, 12°44'S 143°16'E, 6 km ENE of Mt. Tozer , QLD, 30 June 1986, T. Weir & A. Calder, collected at light, MNHN EC1817 ( MNHN) GoogleMaps   .

Description. Measurements. Length: 6.3–6.5 mm; width across humeral calli: 1.0– 1.1 mm; ratios: length of head/length of pronotum: 0.9–1.0; length of pronotum/width of pronotum: 1.3; base of pronotum/apex of pronotum: 1.3–1.4; length of pronotum/length of elytra: 0.4; length of elytra/width of elytra: 3.3. — Colour. Brownish-red. — Habitus. Figs 5–6 View Figs 1–8 . — Head ( Fig. 34 View Figs 34–50 ) broader than long, smooth, with three strong basal notches. Eyes large, projecting laterally; temples indistinct. Vertex and frons not grooved. Metarostrum and mesorostrum strongly grooved, the groove vanishing on prorostrum; metarostrum with deep lateral grooves. Prorostrum 0.5× as long as head + metarostrum + mesorostrum.Antennal segment 3 ( Fig. 35 View Figs 34–50 ) broader than long, conical; 4–8 broader than long, cylindrical; 9–10 not flattened, 11th 1.7–1.8× longer than 10th and acuminate at apex. Venter of head and metarostrum grooved; mesorostrum with a small projection on either side under antennal base. — Pronotum ( Fig. 34 View Figs 34–50 ) without punctures, longitudinally grooved. Prothorax with a small fovea in front of procoxae; prosternellum almost indistinct. Protibiae ( Fig. 36 View Figs 34–50 ) 1.40–1.45× longer than profemora. Metasternum flat, grooved, laterally carinate, not punctate. Meta- and mesofemora not pedunculate; inner spur of meso- and metatibia enlarged in male, not bifid. Elytra glabrous, base slightly concave; interstriae elevated. Interstria 2 distinct only at apex; 3 present from base to apex; 4 reaching apical declivity; 5, 6 and 7 fused anteriorly to form a common humeral callus. Apex of elytra rimmed, external apical border formed by interstria 9. Hind wings ( Fig. 40 View Figs 34–50 ) with basal sclerite.

Sternites III–IV in male ( Fig. 37 View Figs 34–50 ) depressed, very slightly carinate on sides before lateral declivities; V–VI each with three basal notches in middle; VII in middle with deep basal notch and apical fovea, latero-apically with two depressions. Spiculum gastrale as in Fig. 38 View Figs 34–50 . Tegmen ( Fig. 39 View Figs 34–50 ) with parameres fused at base.

Female unknown.

Distribution. Only known from Queensland, Australia.

Etymology. The specific epithet derives from the Latin words “ altus ”, meaning deep, and “ striatus ”, meaning striated, referring to the well-marked elytral striae of the species.

Remarks. This species is probably related to the Oriental species M. bhamoensis (Senna, 1892)   and M. cylindricornis (Power, 1880)   , which also have the parameres fused at the base, but it differs from the former in having more strongly elevated interstriae and a less strongly rounded elytral apex and from the latter in having elytral interstria 2 distinct posteriorly (obsolete in H. cylindricornis   ).

ANIC

Australian National Insect Collection

MNHN

Museum National d'Histoire Naturelle

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Brentidae

Genus

Microtrachelizus

Loc

Microtrachelizus altostriatus

Mantilleri, Antoine 2011
2011
Loc

Microtrachelizus species 4

Zimmerman, E 1994: 195
Zimmerman, E 1991: 151
1991