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 bouchardi Lopes-Andrade sp. nov. ( Figs 27–29 , 54 , 63A , 66A , 69 , 80 ) Etymology The species is named after Dr. Patrice Bouchard, curator of the Coleoptera collection of CNCI. Among the specimens loaned by CNCI, I found the first specimens of two new Scolytocis species described here ( Scol. bouchardi sp. nov. and Scol. howdeni sp. nov. ). The study of the remaining specimens will certainly enhance the current knowledge on the Ciidae taxonomy, mainly of the Neotropical fauna. Diagnosis The species belongs to the bouchardi species-group, due to the smooth posterior margin of pronotum and the triconcave prosternum. It differs from Scol. difficillimus sp. nov. by combination of the following characters: (i) width of eye usually more than 1.2X the basal width of scutellum; (ii) basal width of scutellum near 0.17X the greatest elytral width; (iii) Metatibiae less than 4X as long as broad. Description Holotype . ( Figs 27–29 ) Measurements in mm: TL 1.42; PL 0.47; PW 0.58; EL 0.89; EW 0.63; GD 0.58. Ratios: PL/PW 0.81; EL/EW 1.41; EL/PL 1.89; GD/EW 0.92; TL/EW 2.25. Body dark brown; head and pronotum darker than elytra, almost black; antennae, mouthparts and legs light yellowish brown. Head sparsely punctate, finely and inconspicuously microreticulate. Each antenna ( Fig. 63A ; paratype ) with nine antennomeres (FL 0.098mm ; CL 0.170mm ; CL/FL 1.74); length of the antennomeres (in mm) as follows: 0.088; 0.043; 0.048; 0.018; 0.015; 0.018; 0.045; 0.045; 0.080. Eyes with greatest width 1.28X the basal width of scutellum. Pronotum sparsely punctate; puncture fine, shallow, separated by a distance of two to four puncture widths; interstice between punctures inconspicuously, finely microreticulate; anterolateral margins slightly arched inwards; posterolateral angles broadly rounded; posterior margin without rugose border. Scutellum bearing small punctures near the anterior margin, interstice smooth and shiny; basal width 0.17X the EW. Elytral punctation subseriate; puncture coarser, shallower and more irregular than those of pronotum; interstice between punctures shiny, rugose, but not microreticulate; elytral apex subacute, with some sparse and small cuticular globules; apical region bearing a concavity. Each hindwing ( Fig. 54 ; paratype ) with apical area bearing one vague, incomplete pigmented line near the anterior margin. Prosternum triconcave, without longitudinal carina at midline; surface shiny, rather smooth, with indistinct rugosity in high magnifications (>100X). Metaventrite bearing small and sparse setae; discrimen one-fourth the length of metaventrite at midline. Abdominal ventrites bearing small and sparse setae. Each metatibia ( Fig. 66A , paratype ) broadly rounded, near 3.5X as long as broad; outer edge with spines (around 20) regularly distributed at basal two thirds and then getting sparser. Male genitalia (in a paratype ). ( Fig. 69 , paratype from Oaxaca , Mexico ) Apex of tegmen (sclerotized apical two-thirds) subtriangular; median lobe extremely membranous, elongate, near 1.5X longer than tegmen. Type series Holotype . ( CNCI ) Guatemala : /GUAT. Isabal [sic], 2 Km N Las Escobas 300m , 15.XI.1986 M. Sharkey / Scolytocis bouchardi Lopes-Andrade HOLOTYPUS [printed on red paper] / . Paratypes . Guatemala : 4 speci- mens (2 CNCI, 2 LAPC), same data as holotype . Mexico : 1 specimen (CMNC) /MEX: Veracruz , 33Km N. Catemaco, Los Tuxtlas Biology Stn. 8-15.VI.1984 D. H. Lindeman / Scolytocis sp. [handwritten] Det. J. F. Lawrence [printed]/; 2 specimens (1 ANIC,1 LAPC) / 6mi. S Valle Nac. 2000’ Oaxaca MEX. July 30, 1971 A. Newton, coll. / Rigidoporus sp. / J. F. Lawrence Lot [printed] 3312 [handwritten]/; 12 specimens (1 ANIC, 7 FMNH, 4 LAPC) /Tezonapa Veracruz , MEX [printed] VIII-41 [handwritten] / Col. by Henry S. Dybas/; 11 specimens (7 FMNH, 4 LAPC) /El Fortin, Ver. MEX. VII-9.41 H.S. Dybas #23 / ex Polyporus [printed] lignosus [handwritten]/; 8 specimens (6 FMNH, 2 LAPC) /El Fortin, Ver. MEX. VII-9-41 H. Dybas # [printed] 23 [handwritten] / ex Polyporus lignosus /; 21 specimens (1 ANIC, 1 SMTD, 12 FMNH, 7 LAPC) /El Fortin Veracruz Mex. [printed] VII-9-41 [handwritten] / H.S. Dybas coll. [printed] 23 [handwritten] / ex Polyporus [printed] lignosus [handwritten]/. All the paratypes labeled / Scolytocis bouchardi Lopes-Andrade PARATY- PUS [printed on yellow paper]/ Variation Measurements in mm (n = 24, including the holotype ): TL 1.37–1.58 (1.46 ± 0.05); PL 0.42–0.53 (0.48 ± 0.02); PW 0.58–0.63 (0.61 ± 0.03); EL 0.84–1.05 (0.93 ± 0.05); EW 0.63–0.74 (0.68 ± 0.03); GD 0.58–0.68 (0.63 ± 0.03). Ratios: PL/PW 0.73–0.84 (0.78 ± 0.04); EL/EW 1.29–1.54 (1.37 ± 0.05); EL/PL 1.70–2.25 (1.96 ± 0.13); GD/EW 0.85–1.08 (0.93 ± 0.05); TL/EW 2.07–2.33 (2.16 ± 0.09). Distribution Known only from Guatemala and Mexico ( Fig. 80 ). Host fungi Rigidoporus sp. (Meripilaceae) . Comments The “triconcave” prosternum of Scol. bouchardi sp. nov. and Scol. difficillimus sp. nov. is unique among the Xylographellini , although that is a character not easy to observe (the prosternum itself is very short in Scolytocis ). The “triconcave” prosternum is here defined as the prosternum with a slightly concave disc, with either lateral side concave but in different plane than the disc, appearing triconcave in frontal view. Scolytocis bouchardi sp. nov. is closely related to Scol. difficillimus sp. nov. (from Ecuador ). Specimens of both Scol. bouchardi sp. nov. and Scol. difficillimus sp. nov. may be confused with the species of the lawrencei group, mainly with Scol. lawrencei sp. nov . However, the species of the bouchardi group have larger hindwings and smaller male genitalia.