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 thayerae
Lopes-Andrade
sp. nov.
(
Figs 111–113
,
123
,
127A
,
129A
,
132
,
134
)
Etymology
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
.
Diagnosis
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
).
Description
Holotype
.
(
Figs 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
) 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
) 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
) 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
) 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).
Distribution
Known from the islands of Mindanao and Luzon in the
Philippines
, at the Mounts Apo and Makiling, respectively (
Fig. 134
).
Host fungi
Ganoderma applanatum
(Pers.) Pat. (Ganodermataceae)
.