Scolytocis lawrencei Lopes-Andrade, 2008

Lopes-Andrade, Cristiano, 2008, An essay on the tribe Xylographellini (Coleoptera: Tenebrionoidea: Ciidae), Zootaxa 1832 (1), pp. 1-110 : 25-26

Scolytocis lawrencei Lopes-Andrade sp. nov. ( Figs 48–50 , 61 , 65B , 68B , 77–78 , 80 )

Etymology

The species is named after John F. Lawrence, great coleopterist (and ciidologist) who arranged and organized most of the Xylographellini described in this work.

Diagnosis

The species belongs to the lawrencei species-group, and so is distinguishable from the other Scolytocis by the smooth posterior margin of pronotum and the concave prosternum. It differs from the other Neotropical species in the group mainly by the glabrous elytral apex and the slightly setose metaventrite and abdominal ventrites.

Description

Holotype. ( Figs 48–50 ) Measurements in mm: TL 1.16; PL 0.42; PW 0.53; EL 0.74; EW 0.58; GD 0.53. Ratios: PL/PW 0.80; EL/EW 1.27; EL/PL 1.75; GD/EW 0.91; TL/EW 2.00. Body brown; basal antennomeres, mouthparts and legs light yellowish brown. Head finely and sparsely punctate; interstice between puncture inconspicuously microreticulate. Each antenna ( Fig. 65B , paratype) with nine antennomeres (FL 0.073mm; CL 0.130mm; CL/FL 1.79); length of the antennomeres (in mm) as follows: 0.073; 0.033; 0.035; 0.013; 0.013; 0.013; 0.038; 0.030; 0.063. Eyes with greatest width 1.0X the basal width of scutellum. Pronotum with shallow, coarse, sparse punctation; punctures separate by a distance of two to three puncture widths, interstice microreticulate; anterolateral margins slighted arched inwards; posterolateral angles broadly rounded; posterior margin without rugose border. Scutellum impunctate, microreticulate; basal width 0.19X the EW. Elytra with subseriate punctation; punctures coarser and shallower than those of pronotum, border indistinct from elytral surface (at least when seen from above); interstice between punctures rugose, but without microreticulation; elytral apex subacute, declivity without conspicuous concavity but bearing some small, inconspicuous cuticular globules. Each hindwing ( Fig. 61 ) with apical area bearing one vague, incomplete pigmented line near the anterior margin. Prosternum concave, without longitudinal carina at midline; surface shiny, slightly rugose. Metaventrite slightly microreticulate; disc delimited by a circular row of obsolescent punctures; discrimen one-fourth the length of the metaventrite at midline; either side bearing small and sparse setae, each arising from a large obsolescent punctures. Abdominal ventrites bearing small and sparse setae, best seen in lateral view. Each metatibia ( Fig. 68B ) just slightly expanded near apex, around 4X as long as broad; outer edge broadly rounded, bearing spines (around 20) regularly distributed at apical two thirds and then getting sparser. Male genitalia (in paratypes). ( Figs 77–78 ) Tegmen and median lobe barely sclerotized; tegmen with apex (apical three-fourths) subtriangular; median lobe extremely elongate, more than 10X longer than broad.

Type series

Holotype. (ANIC) Costa Rica: /C. RICA: Heredia Finca la Selva 1974 [printed] July [handwritten]/ J. F. Lawrence Lot [printed] 3643 [handwritten]/ S. Klein-Feldt [handwritten]/ Rigidoporus sp. / 636 [handwritten]/ Scolytocis lawrencei Lopes-Andrade HOLOTYPUS [printed on red paper]/. Paratypes. Costa Rica: 7 specimens (4 ANIC, 3 LAPC), same data as holotype; 1 specimen (ANIC) /Puerto Viejo Costa Rica VIII-4-65 / A. Raske Collector / ex Polyporus zonalis / J. F. Lawrence Lot [printed] 1613 [handwritten]/; 1 specimen (ANIC) /Turrialba Costa Rica VIII-31-66/ Robin Andrews Collector / Fomes (Rigidoporus) auberianus ? / J. F. Lawrence Lot [printed] 1848 [handwritten]/; 1 specimen (CMNC) " COSTA RICA: Punt.[arenas] S. Vito, Las Cruces July 1982 B. Gill 1200m /. Panama: (Total of 51 paratypes: 19 ANIC, 16 FMNH, 15 LAPC, 1 SMTD) 1 specimen / PANAMA: Almirante Bocas del Toro Prov. March 27, 1959 [handwritten] / H. Dybas # [printed] 59-138 [handwritten] / Rigidoporus lignosus /; 5 specimens /Barro Colorado Is. CANAL ZONE [printed] 1.26.59 [handwritten] / H. Dybas [printed] #59-82 [handwritten] / ex Polyporus lignosus /; 17 specimens / Barro Colorado Is. CANAL ZONE [printed] 1.26.59 [handwritten] / H. Dybas [printed] #59-83 [handwritten] / ex Polyporus lignosus /; 11 specimens labeled /Canal Zone: Is. Barro Colorado II.19-III.9-75 Lawrence, Erwin / Rigidoporus sp. /, 5 distinguished labeled /J. F. Lawrence Lot [printed] 3777 [handwritten]/ and 6 /J. F. Lawrence Lot [printed] 3811 [handwritten]/; 4 specimens /Barro Colorado Is. Canal Zone Feb. 15,196 8 / J. F. Lawrence Lot [printed] 2419 [handwritten]/, 3 specimens distinguished labeled / Polyporus lignosus / and 1 / Trametes corrugata /; 3 specimens /Barro Colorado Is. Canal Zone Panama, IV-3-67 / ex Polyporus lignosus / J. F. Lawrence Lot [printed] 2100 [handwritten]/; 2 specimens / Panama: Canal Zone Barro Colorado Is. February 6 1976 A. Newton / litter under rotting logs /; 4 specimens /Barro Colorado Is. Canal Zone July 11 1969 / J. F. Lawrence Lot [printed] 2847 [handwritten]/; 2 specimens /Barro Colorado Is. Canal Zone July 11 1969 / Rigidoporus sp. / J. F. Lawrence Lot [printed] 2838 [handwritten]/; 2 specimens /Barro Colorado Is. Canal Zone Aug. 13 1969 / Rigidoporus sp. / J. F. Lawrence Lot [printed] 3042 [handwritten]/. Mexico: 1 specimen (CNCI) / MEX. Chis., Palenque 2-30.VII.1983, rain forest, S&J Peck & R. Anderson, 100m /; 16 specimens (10 FMNH, 6 LAPC) /Palenque, MEX. Chiapas VII-49 C.J. Goodnight/. All the paratypes with an additional label / Scolytocis lawrencei Lopes-Andrade PARATYPUS [printed on yellow paper]/.

Variation

Measurements in mm (n = 28, including the holotype): TL 1.00–1.37 (1.19 ± 0.09); PL 0.37–0.47 (0.41 ± 0.03); PW 0.42–0.58 (0.50 ± 0.04); EL 0.58–0.89 (0.75 ± 0.08); EW 0.47–0.63 (0.55 ± 0.05); GD 0.42–0.63 (0.51 ± 0.05). Ratios: PL/PW 0.73–0.90 (0.82 ± 0.05); EL/EW 1.10–1.67 (1.35 ± 0.10); EL/PL 1.38–2.14 (1.83 ± 0.18); GD/EW 0.82–1.00 (0.92 ± 0.05); TL/EW 2.00–2.44 (2.15 ± 0.09).

Distribution Known from Mexico, Costa Rica and Panama ( Fig. 80 ).

Host fungi

Rigidoporus sp. , Rigidoporus lineatus (Pers.) Ryvarden and Rigidoporus microsporus (Sw.) Overeem (Meripilaceae) ; Earliella scabrosa (Pers.) Gilb. & Ryvarden (Polyporaceae) .

Comments

A common and widespread continental Mesoamerican Scolytocis . It co-occurs with Scol. panamensis sp. nov. in Panama, and large specimens of Scol. lawrencei sp. nov. may be confused with it in dorsal view. However, Scol. panamensis sp. nov. belongs to the danielssoni species-group, and is unique among the Scolytocis in the fused antennomeres of the club.

Figures

FIGURE 80. Distribution map of the continental Northern Neotropical species of Scolytocis Blair, showing the known distributions of Scol. bouchardi sp. nov. (stars), Scol. danielssoni sp. nov. (double circles), Scol. difficillimus sp. nov. (fulfilled square), Scol. howdeni sp. nov. (open squares), Scol. indecisus sp. nov. (plus symbols), Scol. lawrencei sp. nov. (fulfilled triangles), Scol. panamensis sp. nov. (open circle).

FIGURES 48–50. Scolytocis lawrencei sp. nov, holotype. 48. Dorsal view. 49. Lateral view. 50. Ventral view.

FIGURES 60–62. Hindwings of Northern Neotropical Scolytocis Blair. 60. Scol. kiskeyensis sp. nov. 61. Scol. lawrencei sp. nov. 62. Scol. panamensis sp. nov.

FIGURES 63–65. Antennae of the Northern Neotropical Scolytocis Blair. 63. Scol. bouchardi sp. nov. (A), Scol. cariborum sp. nov. (B), Scol. danielssoni sp. nov. (C). 64. Scol. difficillimus sp. nov. (A), Scol. howdeni sp. nov. (B), Scol. indecisus sp. nov. (C). 65. Scol. kiskeyensis sp. nov. (A), Scol. lawrencei sp. nov. (B), Scol. panamensis sp. nov. (C). First antennomere not shown in Scol. danielssoni sp. nov. (63C, asterisk).

FIGURES 66–68. Metatibiae of the Northern Neotropical Scolytocis Blair. 66. Scol. bouchardi sp. nov. (A), Scol. cariborum sp. nov. (B), Scol. danielssoni sp. nov. (C). 67. Scol. difficillimus sp. nov. (A), Scol. howdeni sp. nov. (B), Scol. indecisus sp. nov. (C). 68. Scol. kiskeyensis sp. nov. (A), Scol. lawrencei sp. nov. (B), Scol. panamensis sp. nov. (C).

FIGURES 77–79. Male genitalia of Scolytocis Blair showing the Y-shaped ninth segment (ix), basal piece (b.p), tegmen (teg) and penis (pen). 77. Scol. lawrencei sp. nov., specimen from Costa Rica. The dashed line indicates the membranous basal portion of tegmen. 78. Scol. lawrencei sp. nov., specimen from Panama. 79. Scol. panamensis sp. nov.