(Figs 13A, 14A, D, G, 15A, 16A–C, Table 7)

Phalangacris alluaudi Bolivar, 1895: 381.

Type locality. Seychelles, Mah.

Type material. One male, one female syntypes mentioned by Bolivar (1895). Female syntype (not adult) in MNHN (MNHN-EO-ENSIF2957).

Examined material. Seychelles, Mah, female syntype, MNHN-EO-ENSIF2957. Mah, La Réserve, one male, 11.v.2016, A. Hochkirch, alcohol collection tube 686, MNHN-EO-ENSIF10764.

Molecular sampling. LDG 594 (Warren et al. 2019)

Emended description. In addition to the characters of the genus:

TIII inner serrulation: no spine before isa1, and between isa1 and isa2, in both male and female; three spines in male, three to four spines in female, between isa2 and isa3; seven spines in male, four to six spines in female, between isa3 and isa4; 17–18 spines in male, 19–20 spines in female, above isa4. TIII outer serrulation: no spine before osa 1 in both male and female; three spines in male, two to three spines in female, between osa1 and osa2; four to five spines in male, five spines in female, between osa2 and osa3; nine spines in male, eight to nine spines in female, between osa3 and osa4; 18–21 spines in male, 19 spines in female, above osa4. Basitarsomeres III without dorsal inner spine in both male and female; with four to five in male, five to six in female, dorsal outer spines, in addition to apical spines.

Coloration (male kept in alcohol, very pale: Fig. 13A). Head yellow with dark brown to black pattern: on the face (Fig. 14A), a black longitudinal line under each antennal pit, prolonged on the mandible, and slightly bifurcated toward lower angle of eye; a black, wide longitudinal median line, reaching preclypeus, prolonged laterally on antennal pit membrane and on scape; at the same level, a short longitudinal median yellowish line. Cheeks black brown in posterior half (Fig. 14D); anterior part yellow; part just behind eye marbled brown and yellowish. Maxillary palpi: articles 1 and 2 white; article 3—5 brown with white upper and lower sides. Vertex and occiput with four thin longitudinal yellow lines, the two in median position trifurcated, the laterals prolonged toward the eye but not reaching it. Fastigium black brown between ocelli; median ocellus black brown; lateral ocelli yellow. Scape yellow with black spots on inner side; antennae brown; apical margins of basal articles yellowish, flagellum otherwise light brown. LL brown with a wide yellow spot in anterior angle and yellowish anterior margin (Fig. 14D); DD spotted yellow, brown and black (Fig. 13A). Abdomen spotted yellow, brown and black (Fig. 13A); cerci yellow with black spots on inner and more or less on outer sides. Legs brown and yellow, with dark rings and stripes: FI with three incomplete dark rings and dark lower margins; TI brown with two small yellow rings, one median and one below the knee; FII as FI, but less dark; TII as TI, but apical spot larger; FIII striated with black on outer side and with three dark rings in filiform part, including one apical on the knee (Fig. 15A); TIII as TI and TII, but with five dark rings; spurs yellow with black tip. Basitarsomeres light brown with yellow base and apex; tarsomeres 2 and 3 yellowish.

Male. FWs (Fig. 14G) not reaching distal margin of tergite 1, both lateral and dorsal fields on male dorsum; not overlapping, but inner margins of both FWs close to one another; dorsal field distally broadly perpendicular, with distal and inner margin at nearly right angle; glandular area along distal 2/3, with many short setae. Venation with strong longitudinal veins and weaker transverse veins; a very strong vein (?) along distal margin, bordering the glandular area distally, distinctly light; dorsal field with three additional longitudinal veins, the two most external bifurcated at one or two thirds of their length respectively; lateral field with one longitudinal vein; transverse veins present on both dorsal and lateral fields. FWs light brown, all veins light.

Male genitalia. As on figure 16A–C.

Female. Known from a juvenile only.