New species and records of Menoscelis Mulsant (Coleoptera: Coccinellidae) from French Guiana
Author
Santos, Paula B.
Author
Churata-Salcedo, Julissa M.
Author
Almeida, Lúcia M.
text
Zootaxa
2016
4078
1
252
268
journal article
46796
10.11646/zootaxa.4078.1.23
88e1bc4a-010d-460f-b6d3-a5baba7bf682
1175-5326
262121
580E036E-043D-4581-8865-7FD15A33DE04
Menoscelis
Mulsant, 1850
Menoscelis
Mulsant, 1850
: 506
, 508;
Crotch, 1874
: 209
;
Gemminger & Harold, 1876
: 3783
;
Chapin, 1966
: 279
;
El-Ali, 1972
: 23
;
Gordon, 1987
: 26
;
Milléo
et al.
, 2004
: 395
;
Gordon & Canepari, 2008
: 271
–274.
Menoscelis
(
Thalassa
)
:
Chapuis, 1876
: 228
, 233–234.
Thalassa
(
Menoscelis
)
:
Korschefsky, 1931
: 208
;
Blackwelder, 1945
: 449
;
Duverger, 1989
: 146
;
Fürsch, 1990b
: 63
.
Type
species.
Menoscelis saginata
Mulsant, 1850
, by subsequent designation of
Crotch (1874)
.
Diagnosis
.
Menoscelis
is a Neotropical genus that is structurally similar to
Diazonema
Weise, 1926
, but differs from all other genera of the tribe in the highly modified protibia, angulate near its base (
Figs 5
D–E) and the transverse female genital plate with spoon–like setae near the apex.
Diazonema
presents a combination of short and compressed protibia, and a transverse female genital plate lacking spoon–like setae near the apex.
In addition to the generic characters described by
Gordon & Canepari (2008)
, species of this genus have other useful characters that aid in their recognition: body usually large (
4.5–7.5 mm
) and rounded, moderately to strongly convex. Dorsal surface glabrous or pubescent, maculate or not. Prosternum process about half the coxal diamenter, surface with complete or incomplete carinae joined anteriorly, forming a triangle (
Figs 5
C, 6E). Prosternal carinae often joined, sometimes connected to the anterior margin of the prosternum by a single carina (
Figs 8
A–G, 9A–E). Epipleura large, external margin explanate (
Figs 5
H, 6H). Protibia flattened, medially emarginate or with parallel sides, tibial groove deep, long, not flanged posteriorly, angulate near base (
Figs 5
D–E, 6F–G); meso- and metatibia narrow, medially emarginate or with parallel sides, not flanged, with shallow tibial groove (
Figs 5
F,
6I
). Abdominal postcoxal line incomplete, recurved or slightly recurved (
Figs 5
G, 6J). Parameres symmetrical; basal lobe asymmetrical. Sipho slender with well-developed, T-shaped siphonal capsule (
Figs 1
E–G, 4D–F). Coxites transverse with spoon-like setae near apex, styles well developed, with or without apical setae; infundibulum lacking; sperm duct simple, uniform in diameter (
Figs1
H, 2E, 3F). Spermatheca with rounded cornu and narrow at base; distal capsule adjacent to cornu or sperm duct (
Figs 2
F, 3G).
Remarks.
Two species,
M. angeloi
sp. nov.
and
M. cordata
sp. nov.
, lack the protibial emargination but are considered members of
Menoscelis
due to the described characters and male and female genital patterns.