The Middle American species of Embates Chevrolat (Coleoptera: Curculionidae: Baridinae)
Author
Prena, Jens
text
Zootaxa
2005
2005-12-19
1100
1
1
151
https://biotaxa.org/Zootaxa/article/view/zootaxa.1100.1.1
journal article
10.11646/zootaxa.1100.1.1
11755334
5051728
7C1F1264-5F23-4557-BFC2-4D015289CF7E
40.
Embates subulirostris
Prena
sp. n.
(Fig. 149–150, 258)
Holotype
female,
Costa Rica
, labeled: “
Costa Rica
, PUNTA.: 4/ km S San Vito, Wilson/ Bot. Garden,
1100 m
,/
26.3.2000
, leg.
Prena
” (
INBC
).
Paratype
1, female, labeled: “
Costa Rica
,
San Vito
/
V15–1981
/
J.E. Wappes
” (
CWOB
)
.
Description. Habitus: total length
6.1–6.5 mm
(n=2). Color: integument piceous, antenna rufous; basic vestiture moderately dense, light yellow, dorsolateral pronotal vitta vestigial, scales velvety black in heartshaped elytral macula (Fig. 149); venter with creamy white scales on prosternum and along flank. Head: frontal fovea absent, rostrum slender, awlshaped, base slightly incrassate (Fig. 150), apex expanded laterally, base subcostate dorsomedially, basolateral margin slightly edged, length of rostrum
♀♀
1.13–1.15 x (n=2) pronotal length, length of anteantennal portion 0.45–0.47 x (n=2) total rostral length, dorsal margin of antennal scrobe reaching rostral base before eye; funicular segment 2 slightly longer than 1, club oblong ovate. Pronotum: length 0.97–0.99 x (n=2) maximum width, sides rounded, widest in basal half, anterior portion notably tubulate; disk densely punctate, intervals granulose, subcostate dorsomedially or not. Elytra: length 1.83–1.89 x (n=2) width at humeri, width 1.36–1.38 x (n=2) maximum pronotal width, sides subparallel in basal half, apices rounded conjointly, preapical callus developed, striae fine, punctures indistinct, interstriae flat, 9 costate, 7 subcostate near subapical callus. Legs: slender, tibia nearly straight and parallelsided, ventral margin with distal cluster of cupreous hairs, tarsal claws flat and approximate at base.
Plant association. Not known.
Distribution.
Costa Rica
, Pacific side, Fila Costeña (Fig. 258).
Specific epithet. The name is a compound Latin adjective derived from subula (awl) and rostrum.
Discussion.
Embates subulirostris
can be recognized within the
E. euchasma
complex by its dark integument and the slender, awlshaped rostrum. Its morphometrical data agree with those of the smallersized
E. oculifer
, but deviate significantly from those of the Atlantic sibling species
E. euchasma
and
E. cordiger
.