The beetle family Carabidae of Costa Rica and Panamá: Descriptions of four new genera and six new species with notes on their way of life (Insecta: Coleoptera)
Author
Erwin, Terry L.
text
Zootaxa
2004
537
1
18
journal article
41752
10.5281/zenodo.157896
7052f80e-cb1c-4f96-976c-a8dc0adfbd09
11755326
157896
CD1DF5B1-B685-4CF2-AC03-42EB9C7B7A36
Tachysbembix wendyporrasae
Erwin
,
new species
(Figs. 3, 4, 13)
Holotype
.
Male.
COSTA RICA
: Guanacaste, Playa del Coco,
35 km
W
Liberia
, sea level,
10° 33' N
,
85° 40' W
, July (R.T. Allen)(
NMNH
: ADP
102219
).
Derivation of specific name.
The specific epithet,
wendyporrasae
, is used as a noun in apposition based on the full name of one of the Parataxonomists at
INBio
, Wendy Porras, who is superb at collecting carabid beetles and has contributed significantly to the species richness of the
INBio
collections. She also managed to collect both known species of this genus in
Costa Rica
at Estero Jabilla, indicating sympatry of the two species.
Common name.
Wendy’s creamcolored seaside carabid.
Diagnosis.
As described for genus. Adults differ from those of the other known species of this genus in
Costa Rica
by the central infuscated maculation of the elytra disc and the relatively shorter elytral length in relation to the length of the pronotum. (Ratio: elytra/ pronotum = 3.33)
FIGURE 4.
Aedeagus, dorsal, ventral, left lateral aspects of
Tachysbembix wendyporrasae
Erwin
new species
.
Description.
(Fig. 3). Size small: ABL =
3.3 to 3.4 mm
, SBL =
3.2 to 3.3 mm
, TW =
1.1 to 1.3 mm
.
Color:
Testaceous, only the central elytral disc infuscated, elytral.
Luster:
Surface dull.
Microsculpture:
Microsculpture isodiametric, granulate.
Head:
Large, about as wide as pronotum; frontal furrow absent; eyes large, hemispheric.
Prothorax:
Transverse, convex, side margin with small dent near base, hind angle absent, margin narrowly reflexed.
Pterothorax:
Mesepisternum multisulcate along anterior margin. Metathorax with fully developed flight wings. Elytra with interneurs 1 and 8 distinctly impressed, 27 nearly effaced, traced in part by small punctures.
Legs:
Normal for
Tachyina
.
Abdomen:
Normal for
Tachyina
.
Male genitalia:
Aedeagus Phallus narrow, not arcuate, endophallus without armature, left paramere moderately elongate, broad, bisetose, right paramere short, broad, bisetose (
Fig. 4
).
Dispersal potential.
The wings are fully developed and all specimens flew to black light, thus it is likely that this species is a moderate to strong flyer.
Way of life.
The three records here and information associated with those specimens from the five undescribed species outside of
Costa Rica
I have studied suggest that the beetles of this genus live near the sea on lightlycolored sandy substrate. This suggestion is support by the adult coloration and their granular isodiametric microsculpture which is common to such sea shore species as
Thalassotrechus barbarae
(Horn)
,
Bembidion puritanum
Hayward
,
Cillenus palosverdes
(Kavanaugh & Erwin)
, and
Bembidion tigrinum
LeConte
, as well as some undescribed
Tachys
spp. from the intertidal zone of Baja California.
Other specimens examined.
Paratypes
:
1 male
,
1 female
(
Guanacaste, Nandayure, Estero Jabilla, 0 m,
10º 02’ N
085º 11’ W
, LN 199225,395300, December (W. Porras, #73830) (male, INB0003718768, female INB0003718767).
Geographic distribution.
(
Fig. 13
). Known only from the pacific coast of
Costa Rica
.
Notes.
The specimens collected by Parataxonomist Wendy Porras were attracted to her blacklight.