A review and clarification of the alticine genera Hemiphrynus Horn 1889 and Phrynocepha Baly 1861 (Coleoptera: Chrysomelidae: Galerucinae: Alticini)
Author
Gilbert, Arthur J.
text
Insecta Mundi
2011
2011-11-02
2011
200
1
57
journal article
10.5281/zenodo.5161403
1942-1354
5161403
Hemiphrynus barri
Gilbert
sp. nov.
(
Fig. 13
, 19, 25, 32, 82)
Type Specimens.
Holotype
(male) [
CASC # 18540
] and
allotype
(female).
MEXICO
.
SINALOA
:
38 miles
NE Concordia
nr.
Loberas
,
3 July 1982
,
A. J. Gilbert Collector
[
6,500ft.
]
.
Holotype
and
allotype
deposited in the California Academy of Sciences.
Paratypes
(
1 male
and
3 females
) – same data as holotype except
Fred G. Andrews
(1) [
CSCA
]
;
Hwy.
40,
6.5 mi.
E. Potrerillos
,
20 August 1964
,
E. Schlinger
;
1870m
[
5,600ft.
] (2) [
UCRC
]
;
6.5 mi.
E.
Potrerillos
,
21 August 1964
,
P. A. Rauch
(1) [
UCRC
]
.
Description.
Male (
holotype
). Body length
4.47 mm
; width at elytral humeri
1.76 mm
; form elongate. Elytra shining, bluish-brown; head, pronotum, thoracic sterna, legs yellow-orange.
Head
not elongate, without ventral “jowl-like” area; genal length 0.54x length of eye; vertex dull, reticulate, irregularly, indistinctly punctate; anterior margin of postclypeus truncate, flat, without anterolateral ridge; frontal carina acute, raised in lateral view; antennal fossae separated by distance slightly more than width of antennal fossa (fossal width measured from inside edges); labrum orange, rectangular with corners rounded, shining, impunctate; labral notch indistinct; frontal tubercles distinct, elevated, separated by coronal suture; area in front of antennal fossa with slightly sunken appearance, with frontogenal suture, without lateral carina; interocular distance 1.24x wider than width of both eyes combined; antennae slender, 0.88x length of body; antennomeres orange; antennomere 2 shortest; 4 longer than 3; antennomeres 1 and 4-11 nearly equal in length.
Pronotum
transverse, with few irregularities and inconspicuous punctures, shining; lateral margins tapering to anterior margin; with indistinct basal depression; basal margin straight; anterolateral projections distinct, rectangular, with corners rounded; posterolateral angles distinct, acute.
Scutellum
orange, shining, obtusely triangular, impunctate.
Elytra
reticulate, with scattered very indistinct punctures; humeri poorly developed.
Prosternal intercoxal process
level with prosternum, not elevated ventrally to level of procoxae, very narrowly, inconspicuously separating procoxae.
Procoxae
conical, appearing contiguous.
Procoxal cavities
open.
Legs
including tarsi, orange; pro- and mesofemora not enlarged; tarsomere 1 of protarsi enlarged, as wide as 3, longer than 2-4 combined; tarsomere 1 of mesotarsi enlarged, more elongate than tarsomere 1 of protarsi, not as wide as tarsomere 3 of mesotarsi, longer than 2-4 combined; tarsomere 1 of metatarsi not enlarged, much longer than 2-4 combined, not wider than tarsomere 3 of metatarsi; all tibiae with a central longitudinal carina entire length.
Abdomen
brownish-orange, shiny, impunctate, sparsely pubescent.
Aedeagus
stubby, sharply bent nearly 90 degrees ventrally near point 1/3 from tip (
Fig. 13
); basal piece about 36% total length of aedeagus; ventral end narrowed into squared tip with shallow apical notch (
Fig. 32
).
Female
(
allotype
). Similar to
holotype
, differing in the following characters: size slightly larger (length
4.76 mm
; width
1.88 mm
); tarsomere 1 not enlarged or overly elongate on all legs; fifth abdominal ventrite truncate.
Variation.
The single male
paratype
measures 4.00 mm in length and
1.65 mm
in width. Females vary in length from
4.76 – 5.29 mm
and in width from 1.88 – 2.00 mm. In both the male and female, the color of the abdomen varies form brownish-orange to nearly black. The stout or slender appearance of the antennae, as represented by the fourth antennomere (length to width ratio), varies. In specimens selected, the male fourth antennomere is slender, approximately 3.5x longer than wide and in the female, even more slender, approximately 4.3x longer than wide.
Figures 1-4
. Habitus of adult
Hemiphrynus
.
1)
Hemiphrynus elongatus
, male.
2)
H
.
intermedius
, male.
3)
H
.
sulcatipennis
, male.
4)
H
.
sydneyae
, female.
Remarks.
Hemiphrynus barri
can be distinguished from all other
Hemiphrynus
by the entirely orange thoracic sterna, a prothorax that is distinctly widest basally and tapers to the anterior angles (Fig. 19) and by the indistinctly punctate vertex (
Fig. 13
, 19). See the remarks for the other species for additional differences.
Distribution.
Known only from the
type
locality in the Mexican state of
Sinaloa
at elevations between 5,600 and
6,500 feet
.
Host.
Unknown.
Etymology.
Named for Dr. William F. Barr, University of
Idaho
, for the many interesting chrysomelids that either he or his students have collected over the years. Many of these specimens, including the
Hemiphrynus
cited in this paper from Alto,
New Mexico
, have been brought to my attention and resulted in new species descriptions, new localities or host records, and in this case a review of two alticine genera.
Specimens Examined.
See “
Type
Specimens.”