Scolytocis panamensis Lopes-Andrade

Lopes-Andrade, Cristiano, 2008, An essay on the tribe Xylographellini (Coleoptera: Tenebrionoidea: Ciidae), Zootaxa 1832 (1), pp. 1-110: 27-28

publication ID

http://doi.org/ 10.11646/zootaxa.1832.1.1

publication LSID

lsid:zoobank.org:pub:45A82AD6-F369-4A74-A280-048BAE6E2DA5

persistent identifier

http://treatment.plazi.org/id/038E87B5-FFA9-CE6B-FF6A-4AF8FC3CFD63

treatment provided by

Felipe

scientific name

Scolytocis panamensis Lopes-Andrade
status

sp. nov.

Scolytocis panamensis Lopes-Andrade   sp. nov. ( Figs 51–53 View FIGURES 51–53 , 62 View FIGURES 60–62 , 65C View FIGURES 63–65 , 68C View FIGURES 66–68 , 79 View FIGURES 77–79 , 80 View FIGURE 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 View FIGURES 66–68 ). 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 View FIGURES 63–65 ).

Description

Holotype. ( Figs51–53 View FIGURES 51–53 ) 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 View FIGURES 63–65 ) 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 View FIGURES 60–62 ) 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 View FIGURES 66–68 ) 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 View FIGURES 77–79 ) 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 View FIGURE 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.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Ciidae

Genus

Scolytocis