Pseudotomias kisarawe, Hemp, Claudia, 2016

Hemp, Claudia, 2016, The Eastern Arc Mountains and coastal forests of East Africa — an archive to understand large-scale biogeographical patterns: Pseudotomias, a new genus of African Pseudophyllinae (Orthoptera: Tettigoniidae), Zootaxa 4126 (4), pp. 480-490 : 483-488

Pseudotomias kisarawe sp. nov.

http://lsid.speciesfile.org/urn:lsid:Orthoptera.speciesfile.org:TaxonName:477911

Holotype. Male, Tanzania, Kazimzumbwi forest reserve, Kisarawe District, February 2015. Depository MfN. Paratype. 1 female, same data as holotype but September 2015, depository MfN.

Further paratype material. 1 male, 1 female, same data as holotype but July and September 2015. Depository NHML. 1 male, 1 female nymph, same data as holotype but February 1991, leg. FRONTIER Tanzania, 1 male, 1 female, 2 female nymphs, Tanzania, Coast Region, Kisarawe District, Ruvu South forest reserve, 38° 50´E 7° 0 8´S, February 1991, leg. FRONTIER, depository ZMUC; 2 males, 4 females, same data as holotype and July and November 2015 and March 2016. Collection C. Hemp.

Description. Male. General habitus and coloration. Small, predominantly green, sometimes with round yellow to brown or black oval patches in anterior part of tegmina ( Fig. 7 A, Fig. 8 ). Hind femora yellow with a tinge of red near knees ( Fig. 7 A). Head & antennae. Acute fastigium verticis situated between scapi of antennae, slightly shorter than scapi ( Fig. 9 A). Eyes round, prominent, green. Antennae comparatively thick, whitish or white with irregular dark markings, about twice as long as insect. Thorax. Pronotum weakly tectiform, broadly rounded at anterior and posterior margins; surface of pronotum rugose with scattered granules; granules forming loose median row on pronotum ( Fig. 9 A). First sulcus almost obsolete, second sulcus strong and continuous running over pronotum, ending laterally about 2/3 into pronotal lobes. Tegmina with large hexagonal cells; in most hexagonal cells at rear part black pigmentation forming small dots. Tegmina about 3 times as long as broad with round apices. Legs. Legs laterally compressed with fine setae along ridges. All femora and tibiae in most specimens unarmed except for hind femora. Hind femora ventrally with two ridges, outer ridge with few black-tipped spinules in apical area towards knees, inner ridge only with few black-tipped spinules. Hind tibiae in diameter almost square with 4 ridges. Abdomen. 9th and 10th abdominal tergite undifferentiated: ( Fig. 9 B) with stout at tips incurved cerci. Subgenital plate short with bi-lobed apex, with long styli ( Fig. 9 C).

Female. Considerably larger than male ( Fig. 8 ) but with similar habitus, coloration and spination of legs. Median on pronotum no row of granules apparent but granules scattered over surface of pronotum. Ovipositor stout, up-curved, with inflated base and sclerotized tips ( Fig. 10 A). Subgenital plate small, triangular with vshaped incision medially, without styli ( Fig. 10 B).

Measurements (mm), males (N = 4). body length 13.4–17.0; median length of pronotum 3.1–3.6; length of tegmina 14.5–17.5; width of tegmina 5.0–5.7; length of hind femur 6.9–8.2.

Measurements (mm), females (N = 6). Body length 17.5–26.0; median length of pronotum 4.7–5.8; length of tegmina 27.0–32.0; width of tegmina 9.9–12.3; length of hind femur 10.0–12.5; ovipositor 13.0–16.0. Nymph. Similar to adult, completely green.

Ethymology. Named after the town Kisarawe surrounding Kazimzumbwi forest reserve. Habitat. Lowland wet forest.

Figures

FIGURE 7. Pseudotomias kisarawe n. sp., male (A) and female (B).

FIGURE 8. Pseudotomias kisarawe n. sp. male mounting female showing sexual size dimorphism.

FIGURE 9. Morphological details of male Pseudotomias kisarawe n. sp. A. Pronotum and head B. Semilateral view on abdominal apex C. Subgenital plate.

FIGURE 10. Morphological details of female Pseudotomias kisarawe n. sp. A. Lateral view on ovipositor B. Subgenital plate.