An essay on the tribe Xylographellini (Coleoptera: Tenebrionoidea: Ciidae) Author Lopes-Andrade, Cristiano text Zootaxa 2008 2008-07-30 1832 1 1 110 https://biotaxa.org/Zootaxa/article/view/zootaxa.1832.1.1 journal article 10.11646/zootaxa.1832.1.1 1175­5334 5126979 45A82AD6-F369-4A74-A280-048BAE6E2DA5 Scolytocis panamensis Lopes-Andrade sp. nov. ( Figs 51–53 , 62 , 65C , 68C , 79 , 80 ) Etymology The specific epithet refers to Panama , terra typica of this new species. Diagnosis The species belong to the danielssoni species-group, and so it is distinguishable from the other Scolytocis species by the biconcave prosternum with a narrow longitudinal carina at midline, the rugose border along the posterior pronotal margin and the comparatively large metatibia ( Fig. 68C ). The species is easily distinguished from all the other Central American Scolytocis by the fused antennomeres of the club, which appear as one large antennomere even in slide preparations ( Fig. 65C ). Description Holotype . ( Figs51–53 ) Measurements in mm: TL 1.53; PL 0.53; PW 0.68; EL 0.95; EW 0.74; GD 0.68. Ratios: PL/PW 0.77; EL/EW 1.29; EL/PL 1.80; GD/EW 0.93; TL/EW 2.07. Body black; basal antennomeres, mouthparts and legs light yellowish brown. Head sparsely and finely punctate; interstice between puncture smooth, shiny. Each antenna ( Fig. 65C ) with seven antennomeres (FL 0.098mm ; CL 0.145mm ; CL/FL 1.49); funicle with four antennomeres and club with only one distinguishable large antennomere; length of the antennomeres (in mm) as follows: 0.085; 0.045; 0.050; 0.018; 0.015; 0.015; 0.145 (= fused antennomeres of the club). Eyes with greatest width 1.28X the basal width of scutellum. Pronotum with fine, shallow, sparse punctation; punctures separate by a distance of three to five punctures, interstice microreticulate; anterolateral margins of pronotum slightly arched inwards; posterolateral angles broadly rounded; posterior margin bearing a rugose border along it. Scutellum punctate, rugose; basal width 0.15X the EW. Elytra with confuse punctation; punctures coarser and shallower than that of pronotum; punctures without conspicuous limits (at least when seen from above), separated by a distance of one to two puncture widths, interstice smooth, shiny; elytral apex truncate; apical declivity concave, bearing small cuticular globules. Each hindwing ( Fig. 62 ) with apical area bearing one vague, incomplete pigmented line near the anterior margin. Prosternum biconcave, with a narrow longitudinal carina at midline; surface striated. Metaventrite glabrous, shiny, rugose; discrimen one-fourth the length of the metaventrite at midline; either side with some large obsolescent punctures. Abdominal ventrites glabrous, rugose. Each metatibia ( Fig. 68C ) broadly rounded, near 3X as long as broad; outer apical and outer lateral edges forming an obtuse rounded angle; spines (less than 20) close to each other at the outer apical edge, then getting sparser. Male genitalia (in a paratype ). ( Fig. 79 ) Genitalia very small (around 0.25mm , including the ninth segment), barely sclerotized. Apical portion of tegmen (apical fourfifths) triangular, apex conspicuously acute; median lobe extremely membranous, indistinct, as long as tegmen. Type series Holotype . Panama : /Barro Colorado Is. Canal Zone July 14 1969 Phellinus sp. / J. F. Lawrence Lot [printed] 2889 [handwritten]/ Scolytocis panamensis Lopes-Andrade HOLOTYPUS [printed on red paper]/. Paratypes . Panama : 2 specimens , same data as holotype (1 ANIC, 1 LAPC); 4 specimens (2 ANIC, 2 LAPC) /Barro Colorado Is. Canal Zone Feb. 5, 1968 / Fomes pseudosenex / J. F. Lawrence Lot [printed] 2310 [handwritten]/; 1 specimen (LAPC) /Barro Colorado Is. Canal Zone July 6 1969 / Phellinus sp. / J. F. Lawrence Lot [printed] 2787 [handwritten]/. All paratypes with an additional label / Scolytocis panamensis Lopes-Andrade PARATYPUS [printed on yellow paper]/. Variation Measurements in mm (n = 5, including the holotype ): TL 1.53–1.63 (1.56 ± 0.05); PL 0.53–0.58 (0.56 ± 0.03); PW 0.63–0.68 (0.67 ± 0.02); EL 0.89–1.00 (0.95 ± 0.04); EW 0.68–0.79 (0.74 ± 0.04); GD 0.63–0.68 (0.66 ± 0.03). Ratios: PL/PW 0.77–0.92 (0.83 ± 0.06); EL/EW 1.20–1.36 (1.29 ± 0.06); EL/PL 1.55–1.90 (1.70 ± 0.14); GD/EW 0.86–0.93 (0.90 ± 0.04); TL/EW 2.07–2.23 (2.12 ± 0.07). Distribution Known only from Panama ( Fig. 80 ). Host fungi Phellinus sp. (Hymenochaetaceae) and Fomes pseudosenex (Murrill) Sacc. & Trotter (Polyporaceae) . Comments This species is unique among all the other Ciidae due to the fused antennomeres of the antennal club (so each antenna has seven antennomeres). Besides the fused club, the gross antennal morphology of Scol. panamensis sp. nov. is similar to that of other species in the danielssoni group.