Scolytocis thayerae Lopes-Andrade

Lopes-Andrade, Cristiano, 2008, An essay on the tribe Xylographellini (Coleoptera: Tenebrionoidea: Ciidae), Zootaxa 1832 (1), pp. 1-110: 36-37

publication ID 10.11646/zootaxa.1832.1.1

publication LSID

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scientific name

Scolytocis thayerae Lopes-Andrade

sp. nov.

Scolytocis thayerae Lopes-Andrade   sp. nov. ( Figs 111–113 View FIGURES 111–113 , 123 View FIGURES 123–125 , 127A View FIGURES 126–127 , 129A View FIGURES 128–129 , 132 View FIGURES 130–133 , 134 View FIGURE 134 )


The species is named after the great entomologist Margaret Thayer (Field Museum of Natural History), who kindly authorized the loan of the specimens from the Philippines and many Mesoamerican Scolytocis   .


The species belongs to the zimmermani   species-group, in which the species have each tibia expanded to the middle, with its outer margin broadly rounded and bearing several spines very close to each other at the apical half. If differs from Scol. philippinensis   sp. nov. by the conspicuous larger apical antennomere, and from Scol. zimmermani   sp. nov. by the larger body (more than 1.7mm).


Holotype. ( Figs 111–113 View FIGURES 111–113 ) Measurements in mm: TL 1.89; PL 0.68; PW 0.79; EL 1.16; EW 0.84; GD 0.84. Ratios: PL/PW 0.87; EL/EW 1.38; EL/PL 1.69; GD/EW 1.00; TL/EW 2.25. Body with dorsal and ventral surfaces dark reddish brown; basal antennomeres, labial and maxillary palpi, and tarsi light reddish brown; legs reddish brown. Head sparsely punctate on dorsum; interstice between punctures microreticulate. Each antenna ( Fig. 127A View FIGURES 126–127 ) with 9 antennomeres (FL 0.10mm; CL 0.21mm; CL/FL 2.10); length of the antennomeres (in mm) as follows: 0.127; 0.040; 0.047; 0.020; 0.020; 0.013; 0.033; 0.043; 0.133. Eyes with greatest width 1.07X the basal width of scutellum. Pronotum with shallow punctation; punctures fine at disc, separated by a distance of two to four puncture widths; near the lateral margins, the punctures are conspicuously coarser and closer than those at disc, being separated by one puncture width or less, but not coalescent; interstice between punctures conspicuously microreticulate; anterolateral margins straight; posterolateral angles broadly rounded; posterior margin without a rugose border. Scutellum impunctate, but microreticulate; basal width 0.19X the EW. Elytra with confuse punctation, which is shallower, denser and coarser than that of pronotum; interstice between punctures rugose, shiny; elytral apex truncate; apical declivity concave, with inconspicuous cuticular globules. Each hindwing ( Fig. 123 View FIGURES 123–125 ) with apical area bearing two distinct pigmented lines, one near the anterior margin and the other almost reaching the posterior margin. Prosternum biconcave, bearing a very thin, inconspicuous longitudinal carina at midline; surface rugose. Metaventrite glabrous; surface finely microreticulate; discrimen absent; either side bearing some large obsolescent punctures. Abdominal ventrites microreticulate; bearing some small and sparse setae. Each metatibia ( Fig. 129A View FIGURES 128–129 ) conspicuously expanded at middle, near 3X as long as broad; outer margin broadly rounded, equally spinulose from apex to middle, with spines very close to each other and then getting sparse to the base. Male genitalia (in a paratype). ( Fig. 132 View FIGURES 130–133 ) Median lobe subcylindrical, membranous, elongate, as long as tegmen; tegmen with lateral margins gradually converging from base to apex.

Type series

Holotype. ( FMNH) Philippines: /CAMP MERAN E [handwritten] slope Mt. Apo , Davo Prov. Mindanao, P.I. [printed] XI-46 [handwritten] / F.G. Werner Collector / Scolytocis thayerae Lopes-Andrade     HOLOTYPUS [printed on red paper] /. Paratypes. Philippines: 10 specimens (5 FMNH, 5 LAPC), same data as holotype   ; 1 specimen ( FMNH) / CAMP MERAN E [handwritten] slope Mt. Apo , Davo Prov. Mindanao, P.I. [printed] XI- 5-46 [handwritten] / F.G. Werner Collector / ex Fomes applanatum   on [sic]   /; 1 specimen ( FMNH) / LAKE LINAU N [handwritten] slope Mt. Apo, Davo Prov. Mindanao, P.I. [printed] X-XI-46 [handwritten] / F.G. Werner Collector /; 9 (1 ANIC, 6 FMNH, 3 LAPC) specimens /E slope Mt.Mckinley Davao Prov, Mindanao P.I. [printed] IX.3.46 6500’ [handwritten] / F.G. Werner Collector / Lot 43 [handwritten]   /; 3 specimens (2 FMNH, 1 LAPC) / Lake Linau, N. slope Mt. Apo, Davao Prov., MINDANAO. El. 7900ft. mossy forest; ex rotten fungus X-25 to XI-4, 1946 / CNHM. Philippine Zool. Exped. (1946-47) F.G. Werner leg./. All paratypes additionally labeled / Scolytocis thayerae Lopes-Andrade     PARATYPUS [printed on yellow paper]/. Variation

Measurements in mm (n = 10, including the holotype): TL 1.79–2.05 (1.94 ± 0.09); PL 0.63–0.74 (0.71 ± 0.04); PW 0.79–0.89 (0.83 ± 0.04); EL 1.05–1.26 (1.17 ± 0.06); EW 0.84–0.95 (0.90 ± 0.05); GD 0.79–0.89 (0.86 ± 0.04). Ratios: PL/PW 0.80–0.88 (0.85 ± 0.03); EL/EW 1.25–1.38 (0.30 ± 0.04); EL/PL 1.54–1.75 (1.67 ± 0.06); GD/EW 0.94–1.00 (0.95 ± 0.02); TL/EW 2.11–2.25 (2.15 ± 0.05).


Known from the islands of Mindanao and Luzon in the Philippines, at the Mounts Apo and Makiling, respectively ( Fig. 134 View FIGURE 134 ).

Host fungi Ganoderma applanatum (Pers.) Pat.   ( Ganodermataceae   ).


Field Museum of Natural History


Australian National Insect Collection