Revision of the Genus Crioprosopus Audinet-Serville, and description of three new genera of Trachyderini (Coleoptera: Cerambycidae: Cerambycinae)
Author
Eya, Bryan K.
text
Zootaxa
2015
3914
4
351
405
journal article
42257
10.11646/zootaxa.3914.4.1
1c1d9c46-4b72-45f0-91f4-5f417dfe7279
1175-5326
242646
39F1E905-0D93-4D6A-AF1B-D622F29B6A54
Crioprosopus
Audinet-Serville, 1834
Type
species:
Crioprosopus servillei
Audinet-Serville, 1834
(monobasic)
The following species are included in
Crioprosopus
:
C. amoenus
Jordan
, 1895
,
C. basileus
(
Bates, 1880
)
comb. nov.
,
C. championi
(
Bates, 1885
)
comb. nov.
,
C. chiriquiensis
sp. nov.
,
C. gaumeri
Bates, 1892
,
C. hondurensis
sp. nov.
,
C. iridescens
White, 1853
comb. nov.
,
C. nieti
Chevrolat, 1857
,
C. rimosus
(
Buquet, 1840
)
comb. nov.
,
C. saundersii
White, 1853
,
C. servillei
Audinet-Serville, 1834
,
C. tricolor
(
Waterhouse, 1840
)
comb. nov.
, and
C. wappesi
sp. nov.
Crioprosopus
Audinet-Serville, 1834
:53
;
Dupont, 1838
:xii, 53, pl. 244, fig. 15;
Strauch, 1861
:127
;
Thomson, 1864
:208
;
Lacordaire, 1869
:170
;
Bates, 1880
:74
; 1885:319;
LeConte & Horn, 1883
:299
;
Leng, 1886
:60
;
Bradley, 1930
:241
;
Linsley, 1962
:101
;
Arnett, 1962
:863
, 881;
Monné, 2012
:56
;
Monné, 2013
:730
Callona
Waterhouse, 1840
,
Syn. nov.
Callona
Guerin-Méneville, 1844
:213
;
Thomson, 1864
:208
;
Linsley, 1962
:100
;
Arnett, 1962
:863
, 881;
Monné, 2012
:56
;
Monné, 2013
:722
Redescription.
Form large, slightly tapering posteriorly, ventral surface pubescent. Head small, front short, impressed transversely (or obliquely downward from middle) with a deep pit on each side of the transverse impression; median line, extending onto vertex between eyes, vertex bicarinate and glabrate either sparsely or finely punctate; mandibles arcuate, acute at apices; palpi short, apical segment of labial and maxillary pair truncate to rounded at apices, impressed dorsally; genae small, subtruncate at apices; antennal tubercles broad, slightly to moderately elevated, apices obtusely angulate to acute; eyes moderately large, finely faceted, upper lobes small, well separated; antennae 11-segmented, slightly expanded externally, scape conical, finely punctate, segments from 4th densely clothed with very short, appressed, pale pubescence, basal segments with few short, erect hairs beneath, sparser dorsally, laterally carinate from segments 3–11, segments 3–5 slightly enlarged at apices, dorsal surface canaliculate (or longitudinally impressed) from apical ¼ to 2/3 of 3rd to 4th (more prominent in male and usually vague in female), 3rd segment longer than 1st, 11th slightly appendiculate. Pronotum broader than long (1.5–1.7 x as broad as long), posterior margin impressed, prosternum with intercoxal process narrower than coxal cavities, arcuate at apex, coxal cavities wide open behind; mesosternum with intercoxal process narrower than cavity, flat, usually not obviously projected below base of coxae, anterior face concave; sides densely clothed with pubescence; metasternum finely, densely punctate, densely pubescent, metepisternum broad. Scutellum acutely pointed apically. Elytra about 2.0–2.4 times longer than wide, distinctly margined laterally; apices broadly rounded or sinuately truncate to suture, exterior angle absent or obtuse if present. Legs slender; hind femora linear, shorter than body, finely punctate, sparsely pubescent; tibiae slender, apically with two short spines, internally with a row of short, suberect hairs; hind tarsi slender, 1st segment about as long as following two segments together, 3rd segment cleft to base. Abdomen is usually densely pubescent, 5th sternite subtruncate.
FIGURES 64–73. Morphological characteristics shared by
Crioprosopus tricolor
female (64–68)
,
and male (69–73)
.
64
: glabrate, coarsely punctured pronotal disc (female);
69
: convex pronotal disc with anterior ½ lacking broad impression, and median line lacking transverse rhombiform dilation (male);
65
,
70
: triangular, flattened, arrowhead-shaped scutellum;
66
,
71
: very finely, densely punctate, and finely, rugulose elytral disc;
67
,
72
: deeply furrowed vertex;
68, 73
: obovate, apically expanded palpi.
Remarks and diagnosis.
The following
Crioprosopus
with metallic elytra, i.e.,
Crioprosopus basileus
Bates,
C. championi
Bates
,
C. gaumeri
Bates
, and
C. rimosa
(Buquet)
have antennal tubercles that are moderately elevated with apices that are usually acute. The pronotum is sexually dimorphic where the males have the following characteristics: (1) a dull, inflated, densely punctate disc that is arcuately impressed at base (
Figs. 55–63
), the anterior half is usually with a broad impression in the middle (
Fig. 59
), with a small pit on each side near apex of lateral angles (
Fig. 60
), and the posterior half with oblique impressions on both sides of the median line (
Fig. 61
), and a deep pit or impression on each side between the oblique impression and the lateral angles (
Fig.
62); (2) the dorsal median line of the disc is glabrate, anteriorly dilated at the apex (
Fig. 55
), and the median line near the base is smooth, and impunctate (
Fig. 58
); (3) side of the pronotum is obtusely subangulate to rounded or with a large subconical postmedian tubercle (
Fig. 57
) and the surface is coarsely, and densely punctate. The pronotal disc of the female is shining, sparsely punctate above, and the sides are finely, densely punctate (
Fig. 16
). The prosternum of the male is densely punctate, and the females have a prosternum that is finely punctate, and densely clothed with subdepressed hair. The scutellum is longer than wide (
Fig. 10
). The elytra are usually glabrate (except in
C. rimosus
). The abdominal segments 1–4 are narrowly glabrous at apices.
FIGURES 74–81. Morphological characteristics of females,
Crioprosopus tricolor
(74–77) compared to
C. basileus
(78–81)
.
74
: punctures on pronotal disc coarse;
78
: punctures on pronotal disc fine;
75
: scutellum triangular, flat, emarginated medially at base;
79
: scutellum elongate, impressed medially;
76
: frons quadrate with median line deeply furrowed;
80
: frons gently sloping from median line to antennal tubercles;
77
: apical segments of labial and maxillary palpi obovate, expanded apically;
81
: apical segments of labial and maxillary palpi oblong, narrowed apically.
C. tricolor
Waterhouse
shares many of the above characters (
Figs. 64–81
) of other metallic
Crioprosopus
except the dorsal canaliculation of antennal segments 3–4 is vague in both male and female, the scutellum is triangular, apical ½ – 2/3 flat (
Figs. 65, 70
), and the ventral surface including the prosternum is clothed with pale, suberect hair. The pronotal disc of male
C. tricolor
is more convex and the anterior half lacks the broad impression in the middle (
Fig. 69
). The
C. tricolor
females have pronotal discs that are glabrate with coarse punctures (
Figs. 64
,
74
) compared to other metallic
Crioprosopus
females where the punctures are finer (
Fig. 78
). The pronotal disc of male
C. hondurensis
sp. nov.
is also convex and the anterior half lacks the broad impression in the middle as in
C. tricolor
male.
The morphological characteristics of
C. servillei
male and female are shown in
Figs. 82–91
. Non-metallic male species, i.e.,
C. servillei
Audinet-Serville
(
divisus
Bates
),
nieti
Chevrolat
, and
C. wappesi
sp. nov.
, also lack the broad impression in the middle of the anterior half of the pronotal disc, and the median line is absent (or vague) or limited to the posterior half of the disc (
Fig. 82
). The pronotal discs of non-metallic females, i.e.,
C. amoenus
Jordan
,
C. chiriquiensis
sp. nov.
, and
C. servillei
, are glabrous and very sparsely and finely punctate (
Fig. 87
), and the sides are either glabrous or more sparsely punctate than the metallic species (except
C. nieti
female with coarsely punctate disc and sides).