An essay on the tribe Xylographellini (Coleoptera: Tenebrionoidea: Ciidae)
Lopes-Andrade, Cristiano
Zootaxa
2008
2008-07-30
1832
1
1
110
Lopes-Andrade
Lopes-Andrade
2008
[151,613,1205,1231]
Insecta
Ciidae
Scolytocis
GBIF
Animalia
Coleoptera
31
32
Arthropoda
species
malayanus
sp. nov.
Etymology The specific epithet refers to Malaysia, terra typicaof this species. Diagnosis The species belongs to the lawrenceispecies-group, and so is distinguishable from the other Scolytocisby the smooth posterior margin of pronotum and the concave prosternum. It differs from all the other species in this group by the surfaces of the prosternum, metaventrite and abdominal ventrites, which have a distinct microreticulation in high relief. Description Holotype.( Fig. 102–104) Measurements in mm: TL 1.05; PL 0.42; PW 0.42; EL 0.63; EW 0.47; GD 0.47. Ratios: PL/PW 1.00; EL/EW 1.33; EL/PL 1.50; GD/EW 1.00; TL/EW 2.22. Body black; antennae, mouthparts and legs dark yellowish brown. Head sparsely punctate; punctures shallow, interstice finely microreticulate. Each antenna ( Fig. 126A) with nine antennomeres (FL 0.068mm; CL 0.125mm; CL/FL 1.85); length of the antennomeres (in mm) as follows: 0.060; 0.028; 0.030; 0.013; 0.013; 0.013; 0.033; 0.038; 0.055. Eyes with greatest width 1.2X the basal width of scutellum. Pronotum with coarse, sparse, shallow punctation; puncture irregular, separated by a distance of two to three puncture widths, interstice conspicuously microreticulate; anterolateral margins straight; posterolateral angles broadly rounded; posterior margin without a rugose border. Scutellum impunctate; basal width 0.16X the EW. Elytra with subseriate punctation; punctures coarser and shallower than those of pronotum; border of punctures indistinct, interstice slightly rugose; elytral apex rounded, glabrous, its declivity with a weak concavity, cuticular globules absent. Each hindwing ( Fig. 120) with apical area without conspicuous pigmented lines. Prosternum concave, without longitudinal carina; surface with distinct rugosity. Metaventrite glabrous, finely rugose; discrimen one-fourth the length of the metaventrite at midline. Abdominal ventrites glabrous, rugosity similar to that of prosternum and metaventrite. Each metatibia ( Fig. 128A) near 3X as long as broad; outer apical and outer lateral edges forming an almost perpendicular angle that is rounded; outer edge with spines (around 15) regularly distributed at apical two-thirds, then getting sparser. Male genitalia (in a paratype).( Fig. 130) Genitalia barely sclerotized; apex of tegmen acute; median lobe extremely membranous and elongate, around 1.8X longer than tegmen. Type series Holotype.(ANIC) Malaysia:/ Malaysia, PahangTemerloh Distr. Krau Game Res. Feb. 18, 1975J. Fleagle, coll. / Ganoderma sp./ J. F. Lawrence Lot [printed] 3911 [handwritten]/ Scolytocis malayanusLopes- Andrade HOLOTYPUS[printed on red paper]/. Paratypes. Malaysia: 2 specimens(ANIC), same locality data as holotype; 2 specimens(LAPC), / Malaysia, PahangTemerloh Distr. Krau Game Res. Feb. 18, 1975J. Fleagle, coll. / Phellinus sp./ J. F. Lawrence Lot [printed] 3906 [handwritten]/; 2 specimens(1 ANIC, 1 LAPC) / Malaysia: PerakN. slopes Gunong Bubu, K. Kangsar Dist. Feb. 2, 1975J. Fleagle, coll. / Phellinus sp./, one additionally labeled /J. F. Lawrence Lot [printed] 3765 [handwritten]/, and the other /J. F. Lawrence Lot [printed] 3768 [handwritten]/. All paratypeswith an additional label / Scolytocis malayanusLopes- Andrade PARATYPUS[printed on yellow paper]/. Variation Measurements in mm (n = 5, including the holotype): TL 1.00–1.16 (1.08 ± 0.06); PL 0.37–0.42 (0.40 ± 0.03); PW 0.42–0.47 (0.43 ± 0.02); EL 0.63–0.74 (0.66 ± 0.05); EW 0.42–0.53 (0.47 ± 0.04); GD 0.42–0.47 (0.44 ± 0.03). Ratios: PL/PW 0.88–1.00 (0.93 ± 0.07); EL/EW 1.20–1.56 (1.41 ± 0.14); EL/PL 1.50–1.86 (1.66 ± 0.16); GD/EW 0.89–1.00 (0.94 ± 0.06); TL/EW 2.10–2.44 (2.30 ± 0.14). Distribution Known only from Malaysia( Fig. 134). Host fungi Ganodermasp. (Ganodermataceae), Phellinussp. (Hymenochaetaceae). Comments The placement of this species in the lawrenceispecies-group is justifiable, since it resembles other species of the group not only by external morphological features but also by the morphology of male genitalia (compare Figs 78and 130).