Pseudeburia, a New South American genus of longhorned beetle (Cerambycidae: Cerambycinae: Bothriospilini)
Author
Botero, Juan Pablo
text
Journal of Natural History
2015
2015-04-30
49
41
2583
2587
journal article
21118
10.1080/00222933.2015.1038328
d504c977-fa95-4f65-9ae7-c4c10fd6096d
1464-5262
4000826
1C803D54-8B84-4800-A91B-04F5EC8DBA8D
Pseudeburia
gen. nov.
Type
species
Eburia albolineata
Fisher 1944
Description
Frons transverse, short; antennal tubercles slightly projected. Eyes coarsely faceted, deeply emarginated, distance between upper lobes 1.5 times the width of an upper lobe. Mandibles acute, curved at external margin. Genae short, acute at apex. Antennae 11-segmented, filiform, unarmed, in both sexes surpassing elytral apex.
Prothorax rounded at sides, with a short, acute, median-lateral spine. Pronotum with two antemedian tubercles, rounded at top; with a median longitudinal gibbosity, slightly elevated. Procoxal cavity rounded, not angulated at sides. Prosternal process narrow, about one-third as wide as procoxal cavity. Mesosternal process tuberculated, mesocoxal cavities about 1.5 times width of mesosternal process. Prosternal and mesosternal process with lateral projections that fit into notches on coxae.
Scutellum small, rounded at apex. Elytra convex, parallel-sided, elongate, at least three times as long as the width across humeri, with eburneus callosities. Apex truncated, bispinose, external spine longer than inner spine.
Mesotibiae, metatibiae and femora linear, inner apex of mesotibiae and metatibiae with a long and acute spine (longer than pedicel length), mesotarsomere and metatarsomere I 1.5 times longer than mesotarsomere and metatarsomere II.
Urosternites transverse, subequal in width; urosternite V truncate and sinuous at middle.
Etymology
Pseudeburia
refers to the great similarity with the genus
Eburia
Lacordaire, 1830
(Eburiini)
.
Remarks
Eburia albolineata
was described by
Fisher (1944)
based on a unique female, from Caripito,
Venezuela
, and placed in the tribe
Eburiini (Cerambycoinia)
. The general appearance and especially the eburneus callosities are typical of
Eburiini
, but examination of the female
holotype
, and specimens of the MNRJ, showed that the terminalia of
Pseudeburia albolineata
comb. nov.
is purpuriceniform. The differentiation of this type of terminalia is a very complex trend that involves some sternites, not only in the female terminalia but also in the male terminalia and should have evolved only once in
Cerambycinae (
Fragoso et al. 1987
)
. The eburneus callosities, on the other hand, are a characteristic that occurs in many tribes of
Cerambycinae
, as for example in
Trachyderini
,
Torneutini
,
Bothriospilini (Trachyderoinia)
,
Heteropsini
and
Hesperophanini (Cerambycoinia)
and does not occur in all the
Eburiini
– e.g.
Styliceps sericata
(
Pascoe 1859
)
,
Simplexeburia divisa
Martins and Galileo 2010
,
Opades costipennis
(
Buquet 1844
)
.
The monophyly of
Trachyderoinia
has never been formally tested, but although their main objective was not that,
Monné and Napp (2005)
corroborated the proposal of
Fragoso et al. (1987)
and recognized some characters that define the supertribe: metepisternum with glandular pores; sternites I–V widened and sternite V transverse, sinuous at apex; apophysis of male VIII sternite short, half or less length of sternite; median lobe and internal sac shortened; distal region of female VIII sternite with a brush of differentiated setae; female VIII tergite transverse and bi- or trilobated; ovipositor short, at most as broad as long. As mentioned in the Introduction, there are many works that describe and illustrate the
Trachyderoinia
terminalia:
Moura and Galileo (1992)
(figs 1–10),
Monné and Napp (2000)
(figs 47–72),
Monné (2005b)
(figs 29–54, 62–80),
Monné and Napp (2005)
(figs 124–125, 127–132),
Botero and Monné (2012)
(figs 13–15, 25–27, 38–39, 43–45, 56–58, 72–75, 86–88, 102–105, 116–118, 135–138, 149–151, 168–171, 182–184, 198–201, 212–214),
Quintino and Monné (2014)
(figs 48–50, 61–63, 74–76, 87–89, 94–97, 102–105, 110–113, 118–121). The terminalia described in these works are in accord with the proposal of
Monné and Napp (2005)
and with the terminalia described in
Pseudeburia
gen. nov.
(
Figures 1B–D
).
Figure 1.
Pseudeburia albolineata
comb. nov.
, female. (A) Holotype; (B) detail of the brush of setae, posterior view; (C) sternite VIII (brush of setae); (D) tergite VIII.
In
Trachyderoinia
only two tribes have eyes coarsely faceted,
Torneutini
and
Bothriospilini
.
Bothriospilini
is characterized by the antennae elongate in both sexes, prothorax with lateral projections, procoxal cavities rounded at sides, mesosternal process with lateral projections, mesofemora and metafemora spinose at apex and hind legs twice as long as forelegs (
Monné and Napp 2005
). All of these characteristics are present in
Pseudeburia
gen. nov.
Beyond
Pseudeburia
gen. nov.
, in
Bothriospilini
only three genera have eburneus callosities:
Bothriospila
Aurivillius 1923
,
Taygayba
Martins and Galileo 1998
and
Timbaraba
Monné and Napp 2005
.
Bothriospila
differs from the other genera because its eburneus callosities are irregular and clothed with short pubescence (
Monné and Napp 2005
).
Pseudeburia
gen. nov.
differs from
Taygayba
by having the sides of the prothorax armed with an acute spine, by the spinose elytral apices and the inner apices of the mesofemora and metafemora with a long spine. In
Taygayba
the sides of the prothorax, apices of elytra, and the inner apices of the mesofemora and metafemora are unarmed.
Pseudeburia
gen. nov.
differs from
Timbaraba
by having the inner apical spine of the mesofemora and metafemora well developed (longer than pedicel length). In
Timbaraba
the inner apical spine of the mesofemora and metafemora are moderately short (shorter than pedicel length).