A Review Of Triarius Jacoby, 1887 (Coleoptera: Chrysomelidae: Galerucinae: Luperini), With Descriptions Of A New Genus And Four New Species
Author
Clark, Shawn M.
Author
Anderson, E. Russell
text
The Coleopterists Bulletin
2019
2019-06-30
73
2
343
357
journal article
25500
10.1649/0010-065X-73.2.343
5b9e7cde-13c4-4e9c-8cb2-7a4478ca3899
3445861
urn:lsid:zoobank.org:pub:0DA77902-AD7C-461E-9D8E-90862D41E67C
Triariodes vittipennis
(
Horn, 1893
)
,
new combination
Fig. 1a, d, g
Malacosoma vittipenne
Horn 1893: 123
Exosoma vittipenne
:
Leng 1920: 298
Exora
(
Exora
)
vittipennis
:
Weise 1924: 99
Triarius vittipennis
:
Wilcox 1965: 167
Diagnosis.
The vittate elytra (
Fig. 1a
), in combination with the appendiculate tarsal claws, distinguish this species from others in the similar genus
Triarius
. The largely pale brown head and femora, and especially the distinctive aedeagus (
Fig.
1g
), easily distinguish this from the other known species of
Triariodes
.
Type Material Examined.
We examined two
syntypes
of
M. vittipenne
in the Horn Collection (
MCZ
). Both are female. One of them bears the following three labels: “Tex,” “
LectoType
3795,” and “
Malacosoma vittipenne Horn.
” It is not clear who added the
lectotype
label to the specimen, and, to our knowledge, a
lectotype
designation has never been published. In any case, this specimen is now designated as the
lectotype
for
M. vittipenne
.
Type
Locality.
“
Occurs
in southwestern
Texas
, precise region unknown.” (
Horn 1893
)
.
Geographic Distribution.
We examined specimens from Chaves and Eddy Counties in New
Mexico
, and from Brewster, Crockett, Culberson, El Paso, Jeff Davis, Presidio, Terrell, Uvalde, and Val Verde Counties in Texas. Also, we saw two old specimens labeled from Arizona (UMRM), but we doubt the authenticity of this record.
Temporal Distribution.
We saw adults collected from March to October.
Plant Associations.
This species is reported from
Prosopis
L. and flowers of
Acacia angustissima
var.
hirta
(Nutt.) B. L. Robbins
(both
Fabaceae
);
Condalia
Cav. (Rhamnaceae)
;
Fallugia paradoxa
(D. Don) Endl. ex Torr. in Emory (Rosaceae)
; and
Solanum elaeagnifolium
Cav. (Solanaceae)
(
Wilcox 1965
;
Goeden 1971
;
Ward
et al.
1977
;
Clark
et al.
2004
). Beyond this, we examined specimens labeled as from blossoming
Acacia greggii
A. Gray (Fabaceae)
.
Comments.
Beyond the
type
material mentioned above, we examined 390 other specimens.