A taxonomic revision of the subfamily Tillinae Leach sensu lato (Coleoptera, Cleridae) in the New WorldAuthorBurke, AlanAuthorZolnerowich, GregorytextZooKeys201717975157http://dx.doi.org/10.3897/zookeys.179.21253journal articlehttp://dx.doi.org/10.3897/zookeys.179.212531313-2970-179-7536C4E2C8E07D4CC9A1D696B0FCE92CCFLecontella Wolcott & Chapin, 1918Type species.Cymatodera (Lecontella) cancellata
LeConte, 1854, original designation.
Distribution.Shown in Fig. 21I.Differential diagnosis.Lecontella
resembles various members of
Cymatodera
, but it can be differentiated from species of this genus if the elytral punctations are coarse, deep, and extending to the elytral declivity (Figs 3
E-F
, 4A, 7G, 12 C,
E-F
), and the antennae are moderately serrate with antennomeres 2-10 feebly to conspicuously compacted (Figs 9F, 10
A-B
). Species of
Cymatodera
, on the other hand, have the elytral
disc
moderately punctate, the striae almost never reach the elytral apex (Figs 4F, 5E, 13
C-D
), the antennal shape ranges from filiform to variously serrate, and antennomeres 2-10 are not compacted (Figs 10
G-H
).
Redescription.Size: 8-28 mm. Color: Body uniformly fuscous to testaceous except abdomen, slightly lighter than rest of the body, integument can range from brown-testaceous to almost ferrugineous in some individuals. Elytral disc with fasciae or maculae absent. Body: Winged species, body elongate, somewhat robust.
Head: Including eye slightly wider than pronotum; integument coarsely punctate, punctations vary from narrow to wide; eyes large, coarsely faceted, feebly emarginate anteriorly conspicuously bulging laterally; antennae moderately to strongly serrate, consisting of 11 antennomeres; antennomeres 2-10 variously compacted (Figs 9F, 10
A-B
); frons bi-impressed or not; terminal labial palpi securiform; terminal maxillary palpi cylindrical, compressed laterally.
Thorax: Pronotum deeply punctate, punctation may range from narrow to conspicuously wide (Fig. 12
E-F
); pronotum widest at middle, sides more constricted behind middle. Mesepisternum fully covered by elytron in lateral view (Fig. 12C). Prosternum rugose to smooth; slightly punctate, punctation coarse. Mesoventrite wider than long; smooth; feebly punctate, punctations coarse. Metaventrite wider than long; surface conspicuously punctate; punctation moderately wide. Metaventral process compressed anteriorly. Metepisternum hidden by elytra throughout its length in lateral view.
Elytra: Elongate, subparallel, slightly broader on posterior third; surface coarsely punctate (Fig. 7G), punctations arranged in regular striae, punctations extending to apex; scutellum ovoid, compressed; vested; epipleural fold complete, narrowing toward apex.Legs: Femora moderately to coarsely rugose; rather swollen. Tibiae slender rugulose to rugose; pulvillar formula 4-4-4; two tarsal denticles, tarsal denticles trigonal in shape; feebly to strongly vested.Abdomen: Six visible ventrites. Ventrites 1-4 not impressed laterally; pygidium of males feebly differentiated form that of females.Aedeagus: Sclerotized; length of aedeagus shorter than the length of abdomen; tegmen triangular; phallic plate devoid of denticles; phallobasic apodeme short, as long as or longer than phallus; endophallic struts enlarged, swollen distally.Remarks.Wolcott and Chapin (1918)
established the genus
Lecontella
, designating
Lecontella (Cymatodera) cancellata
(LeConte) as the type species; subsequently,
L. cancellata
was synonymized by
Ekis (1975)
with
L. brunnea
(Spinola). The genus is currently composed of two species:
Lecontella
brunnea
(Spinola), a species originally described as
Cymatodera longicornis var. brunnea
by
Melsheimer (1846)
, later on transferred to
Lecontella
by
Wolcott and Chapin (1918)
and the current type species for the genus, and
L. gnara
Wolcott, 1927. Based on an extensive examination of material identified as
Cymatodera striatopunctata
Chevrolat, a third species is designated to
Lecontella
in this revision. This change is based on the close similarities on elytral punctations (Fig. 4A), antennae (Fig. 10B), and aedeagus (Fig. 20A) of
C. cancellata
with
L. brunnea
(Figs 3E, 9F, 19E) and
L. gnara
(Figs 3F, 10A, 19F).
Mawdsley
(2002)
has indicated that the larvae of
L. brunnea
can be parasites in nests of solitary bees and wasps. Additionally, immature stages of
L. brunnea
were observed preying on larvae of wood-boring species of the
Cerambycidae
and
Buprestidae
families. Adults of
Lecontella
species are commonly attracted to lights.
Key to species of
Lecontella
Wolcott and Chapin