Titanogryllus n. gen., the largest Gryllinae cricket from the Neotropical Region with three new species from the Brazilian Atlantic Forest (Orthoptera, Grylloidea, Gryllidae)
Author
Jaiswara, Ranjana
Author
Souza-Dias, Pedro G. B.
Author
Campos, Lucas Denadai De
Author
Redü, Darlan R.
Author
De Mello, Francisco De A. G.
Author
Desutter-Grandcolas, Laure
text
Zootaxa
2018
2018-03-29
4402
3
487
507
journal article
30378
10.11646/zootaxa.4402.3.4
6b1f8c1f-1ebb-46ff-a749-c773c5426015
1175-5326
1209708
AFBEB273-0057-4F25-B702-CA2CB4568361
Titanogryllus oxossi
Souza-Dias & de Mello
n. sp.
Figures 1B
,
7–10
,
13A
http://lsid.speciesfile.org/urn:lsid:
Orthoptera
.speciesfile.org:TaxonName:501945
Type
locality.
Brazil
,
Bahia
State, municipality of Mucuri.
Etymology
. Ọ ṣọ́ ̀ ọ gỳ(Oxóssi in portuguese) is an orisha of the Yoruba religion in West Africa, and the canbomblé in
Brazil
. Oxóssi is the spirit associated with the animals, forests, and hunt.
Distribution
. Atlantic Forest, in
Bahia
State, municipality of Mucuri.
FIGURE 7.
Titanogryllus oxossi
n. gen.
n. sp
. General morphology of the holotype (MZSP). (A) habitus, dorsal; (B) head and pronotum, dorsal; (C) head and pronotum, lateral; (D & E) FW, dorsal; (F) FW, lateral; (G) supra anal plate; (H) subgenital plate; (I) head, frontal. Scale bar: A, 10mm; B–I, 1mm.
FIGURE 8.
Titanogryllus oxossi
n. gen.
n. sp
. General morphology of the allotype (MZSP). (A) habitus, dorsal; (B) FW, lateral; (C) supra anal plate; (D) subgenital plate; (E) ovipositor, dorsal; (F) ovipositor, ventral; (G) ovipositor, lateral. Scale bar: A, 10mm; B–G, 1mm
FIGURE 9.
Titanogryllus oxossi
n. gen.
n. sp
. Male genitalia. Male genitalia in (A) dorsal, (B) ventral and (C) lateral views. Apex and median part of pseudepiphallus in (D) dorsal, (E) ventral and (F) lateral views. Scale bar: 1mm.
FIGURE 10.
Titanogryllus oxossi
n. gen.
n. sp
. Female genitalia. Copulatory papilla in (A) ventral, (B) dorsal and(C) lateral views.
Type material
. Holotype, allotype, 1 male paratype.
Holotype
: male, with genitalia removed and kept with the specimen, and the right leg II missing, labeled “
Brasil
, BA [
Bahia
]. Mucuri, Faz. Farol.
14-16/vii/1989
.
2-M. 89/ 81.
F.A.G. Mello
col
.” (
BOTU
).
Allotype
: female, with the copulatory papilla removed and kept with the specimen, labeled “
Brasil
, BA [
Bahia
], Mucuri, Fazenda Farol - mata.
i-96
. 18o04’01’’S/39o40’23”W. F.A.G. Mello & S.S. Nihei,
leg
. 5-M” (BOTU).
Paratype
.
1 male
with left leg I missing, and the genitalia and FWs removed and kept with the specimen, same data as the
holotype
(
BOTU
).
Diagnosis.
Species large, but smaller than
T. salgado
n. sp.
(~
3cm
body length), general coloration light to yellowish brown. Male genitalia: anterior margin of pseudepiphallic sclerite without medial furrow; lateral lophi bifurcated, inner projection pointed, spine-like; medial lophi below inner margins of lateral lophi; pseudepiphallic parameres thin, shorter than in
T. salgado
n. sp.
, apex rounded. Female. General coloration darker than males: body light brown, head and pronotum medium brown. Copulatory papilla small, rounded; base convex dorsally, with medial invagination, medially extended ventrally; apex membranous, rounded, smaller than in
T. salgado
n. sp.
, as in
Figs. 10 A–C
.
Description.
In addition to the characters of the genus:
General coloration light to yellowish brown (
Figs. 1B
,
7A
,
8A
).
Head
. Head large, wider than long, yellowish brown (
Figs. 7A, B
). Posterior margin of occiput yellowish brown, with 4 lines going from occiput to vertex (
Figs. 1B
,
7A, B
). Occiput and vertex glabrous (
Figs. 1B
,
7A, B, C, I
,
8A
). Eyes small, with very reduced unpigmented area on dorsal margin (
Figs. 7B, C, I
). Fastigium glabrous, wide as vertex, at least
2x
wider than antennal scape (
Figs. 1B
,
7A, B, C, I
). Antennal scape and antennomeres light brown (
Figs. 1B
,
7A–C, I
). In lateral view, gena yellowish brown (
Fig. 7C
). Three ocelli, almost in line; lateral ocellus small, circular; median ocellus small, flat (
Figs. 7C, I
). Maxillary palpi light brown; apex rounded, whitish. Frons light brown, very short, shorter than clypeus (
Fig.
7I
). Clypeus, labrum and mandibles light brown (
Fig.
7I
).
Thorax
. DD saddle-shaped, glabrous, wider than long, light brown, with medium brown maculae; cephalic margin concave, caudal margin almost straight (
Figs. 1B
,
7A–C
,
8A
). LL ventro-cephalic angle and ventral margin rounded, ventro-caudal angle ascendant (
Fig. 7C
).
Legs
. Legs I, II light brown (
Figs. 1B
,
7A
). TI with two auditory tympana, two ventral spurs and one dorsal (inner). TII with 4 spurs. Legs III not specially elongated, shorter than body length. FIII light brown, with longitudinal medium brown line; FIII medium brown in the articulation with TIII. TIII and basitarsus–III light brown. Double row of spines on basitarsus–III. TIII with spines before the subapical spurs; subapical spurs 3/3. Apical spurs: median longest on both sides, dorsal slightly shorter, ventral smaller.
Abdomen
. Abdomen light brown, glabrous; cerci light brown (
Figs. 1B
,
7A
).
Male
. Male FWs reaching tergite 4, medium brown; anal vein area bulged dorsally; harp crossed with 4 almost transverse veins; stridulatory vein with 102 teeth (n=1); mirror undivided, distinct from apical venation; apical field very short, almost reduced; lateral field with 4-5 longitudinal veins (
Figs. 1B
,
7A, D–F
,
13A
). Metanotum without metanotal structures. Male supra anal plate light brown (
Fig. 7G
). Subgenital plate light brown, shieldshaped, proximal margin almost straight, distal margin rounded, extended medially (
Fig. 7H
).
Male genitalia
.
Pseudepiphallus: anterior margin without medial furrow (
Figs. 9A, D, F
); lateral lophi bifurcated, inner projection pointed, spine-like (
Figs. 9A, B D
); medial lophi below inner margins of lateral lophi (
Figs. 9A, D, F
). Rami elongated, apically bent towards ventral side; apex of each ramus separated (
Figs. 9–C
). Pseudepiphallic parameres thin, shorter than in
T. salgado
n. sp.
, apex rounded (
Figs. 9B, E
). Ectophallic invagination: ectophallic apodemes shorter than in
T. salgado
n. sp.
(
Fig. 9A
); ectophallic arc dorsal, thin, almost indistinguishable, below pseudepiphallic medial lophi; ectophallic fold furrowed, longer than in
T. salgado
n. sp.
and
T. oxente
n. sp.
Endophallus: endophallic sclerite small, related to ectophallic fold (
Fig. 9B
); endophallic cavity reduced.
Female
. Larger than male, shorter than females of
T. salgado
n. sp.
(
Fig. 8A
). General coloration darker than males: body light to medium brown; head and pronotum medium brown (
Fig. 8A
). FW small, very reduced (
Figs. 8A, B
). Abdomen glabrous, yellowish to medium brown (
Fig. 8A
). Supra anal plate pubescent, medially constricted, light brown with medium brown small maculae; proximal margin almost straight, distal margin rounded (
Fig. 8C
). Subgenital plate small, proximal margin almost straight, distal margin medially convex, angles rounded (
Fig. 8D
). Ovipositor short, shorter than FIII; apex of ovipositor modified, with conspicuous concavity; apex pointed and curved in lateral view, with ventral protuberance, as in
T. salgado
n. sp.
(
Figs. 8E–G
).
Female genitalia
. Copulatory papilla small, rounded; base convex dorsally, with medial invagination, medially extended ventrally; apex membranous, rounded, smaller than in
T. salgado
n. sp.
, as in
Figs. 10 A–C
.
Measurements (mm). Males (n=2)–
mean (range): BL
–
29.77 (28.8–30.75); PL
–
3.9 (3.75–4.05); PW
–
6.22 (6– 6.45); FWL
–
9.9 (9.75–10.05); FWW
–
6.52 (6.3–6.75); LFIII
–
17.4 (16.5–18.3); WFIII
–
5.1 (4.95–5.25); LTIII
–
9.22 (8.7–9.75).
Female (n=1)
: BL
–
30.3; HW
–
7.35; IOD
–
4.2; PL
–
4.05; AWP
–
7.05; PWP
–
5.25; PW
–
7.05; LFIII
–
17.25; WFIII
–
5.1; LTIII
–
9.15; LBt-III
–
4.2; OL
–
8.25.