Pterotiltus campoensis Oumarou-Ngoute & Rowell 2024
Creators: name: Rowell, C. H. F.
name: Oumarou-Ngoute, Charly
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Orthoptera
Acrididae
Pterotiltus
Pterotiltus campoensis

description: 15. Pterotiltus campoensis Oumarou-Ngoute & Rowell, 2024
Figs 42–44; Table 13
Pterotiltus campoensis Oumarou-Ngoute & Rowell, 2024: 133.
Type material
Holotype
CAMEROON • ♂; Ocean Division, Campo town; 6 m a.s.l.; 13 Nov. 2017; C. Oumarou-Ngoute leg.; MfN 2017242.
Paratypes
CAMEROON • 1 ♀; same data as for holotype; MfN 2017243 • 1 ♂; same data as for holotype; 5 Jun. 2016; RC 2016039.
Description
As in the case of P. ngoylaensis, this species has been newly described only recently, and we have therefore reduced our treatment of these species here to avoid unnecessary duplication.
Male
Body of medium size, integument shiny, rugose in the pronotum and in the three first segments of abdomen.
HEAD. Antenna filiform, longer than head and pronotum together; fastigium of vertex short, pentagonal in dorsal view, somewhat concave, with a slight medial sulcus; frons slightly oblique, frontal ridge shallowly sulcate, well developed above medial ocellus and obsolete below; eyes large, oval, convex; inter-ocular space equal to or slightly wider than antennal scape.
THORAX. Pronotum cylindrical, medial carina very weak, crossed by three deep transverse sulci, the space between the sulci 2 and 3 wider and more convex than elsewhere; lateral carinae absent; metazona very short, about one-fifth of the length of prozona; posterior margin of metazona slightly notched in the midline, otherwise straight; anterior margin of pronotum slightly convex; prosternal process conical, sharply pointed; mesosternal space as wide as long; metasternal space very small, almost completely closed. Hind tibia only slightly expanded, hind femur slender, with weakly impressed chevron markings; lower genicular lobe acutely pointed; external apical spine of tibia present.
ABDOMEN. Tympanum wide, oval or circular; last abdominal tergite divided, the hind margin in male with very small lobiform processes forming a minute furcula, almost indiscernible (Fig. 46A); cercus long, straight, strongly compressed laterally, with acute apex extending beyond the tip of the subgenital plate. Supra-anal plate very short, triangular in dorsal view, apex rounded in female, slightly more acute in male. Proximally, there is a short medial longitudinal groove, bounded posteriorly by an oblique transverse ridge that extends across the width of the plate.
PHALLIC COMPLEX. Epiphallus (Fig. 43A) with wide, roughly oblong, outer lophi and poorly developed and somewhat assymetrical inner lophi. ‘Oval’ sclerites of irregular shape. Anterior processes bluntly pointed and directed inwards. Valvular plate well developed, with a distinctive set of medial and lateral lamellae apically.
Female
Similar to male in structure and colouration, but larger. Subgenital plate smooth.
Colouration (Fig. 42)
Very distinctive. In life colouration predominantly black, blue and red, with green legs.
Scape and pedicel of antenna green, flagellum entirely red, sometimes brown apically; fastigium blue; vertex blue with two faint lighter (yellow or red) lateral longitudinal bands; eyes red in life, fading to brown-yellowish or yellow when dried. Frons blue black. Genae blue/black, with a weak white or yellow subocular stripe. Postocular stripe black, extending on to the pronotum.
Pronotal disc multi-coloured, predominantly black with two yellowish patches in the anterior part of prozona and two more in the posterior part of metazona, and red pigment in the midline between the yellow patches. Mesothoracic tergite black, with small red areas either side of midline. Metathoracic tergite mainly red. Abdominal tergite 1 is red medially with yellow pigment laterally, tergites 2 & 3 are black, tergite 4 yellowish. Remainder of abdomen blue.
Prosternal, mesosternal and metasternal spaces blue; prosternal spine slightly brown, probably green in life. Hind femur yellowish green proximally and green distally; knee blue black with upper lobe brownish; tibia and tarsi blue.
Measurements
See Table 13.
Distribution
Cameroon, Ocean Division, Campo town. This species is found in coastal swamp forest. Note: Campo town is on the border with Equatorial Guinea. Pterotiltus campoensis probably occcurs in that country too.
Status of taxonomic material
OK: both sexes present in collections, modern localities known.
description: Published as part of Rowell, C. H. F. & Oumarou-Ngoute, Charly, 2025, Review of Pterotiltus Karsch, 1893 (Orthoptera, Acrididae, Oxyinae), pp. 1-104 in European Journal of Taxonomy 986 on pages 72-76, DOI: 10.5852/ejt.2025.986.2853, http://zenodo.org/record/15235428