Afroanthracites jagoi Ünal & Hemp, 2013

Hemp, Claudia, 2013, Annotated list of Tettigoniidae (Orthoptera) from the East Usambara Mountains Tanzania and new Tettigoniidae species from East Africa, Zootaxa 3737 (4), pp. 301-350 : 319

Afroanthracites jagoi Ünal & Hemp n. sp. ( Fig. 7 U–X, Fig. 8 K, L, Fig. 9 , Fig. 11)

http://lsid.speciesfile.org/urn:lsid: orthoptera .speciesfile.org:TaxonName:180005

Holotype male, Tanzania, West Usambara Mountains, Mazumbai Forest Reserve, June 1967, coll. N.D. Jago. Depository: BMNH.

Paratypes: 1 female, same data as holotype. Depository: BMNH.

Description.—Male. General habitus and colour: Body relatively small for the genus. Colour pattern green and milky-brown, no dark spots. Head and antennae.— Fastigium of vertex short, acute, conical, much narrower and shorter than antennal scapus. Face and antenna uniformly green ( Fig. 7 U). Thorax.— Pronotum short, cylindrical in prozona; very slightly widened and inflated in metazona. Most part of tegmina hidden under pronotum, but their posterior parts visible in dorsal view. Pronotum without dark patch on metazona. Prosternum with two U-shaped spines. Legs.— Fore femur with 3 inner, mid femur with 3 outer and hind femur with 4 outer short ventral spines. Hind tibia with 4 very small apical spurs ventrally. Abdomen.— 10th abdominal tergite long, strongly narrowed towards apex, its posterior margin incised, forming two very narrow lobes ( Fig. 7 V, W). Cerci with bidentate tips of which outer tip is longer ( Fig. 9 ). Subgenital plate with long apical lobes which are strongly up-curved at an right angle ( Fig. 7 X). Styli short. Titillators with acute tip and broad, curved projection ( Fig. 8 L). Other details indistinct since preparation has not be cleaned.

Female.—General habitus as male, body green and milky-brown without any dark marks. Head as in male. Antenna at least twice as long as body. Pronotum short, wider than that of male; almost cylindrical, very slightly widened in metazona; posterior margin almost straight; lateral lobes (paranota) green, dorsal surface milky-brown. No tegmina. Legs as in male. 10th tergite wide and narrow almost triangular, posterior tip with an indistinct, very small notch (Fig. 11). Ovipositor light brown, relatively short, up-curved. Subgenital plate with transversal ridges at basal part; broad at base, distinctly narrowed to apex, posterior margin with a deep, rounded incision, forming two narrow lobes at apex (Fig. 11).

Measurements, male (mm) (N=1). Body length 22.1. Length of pronotum 7. Length of hind femur 9.7.

Measurements, female (mm) (N=1). Body length 17.5. Length of pronotum 5.9. Length of hind femur 11.4. Ovipositor 9.4.

Diagnosis: A. jagoi n. sp. is easily recognized by the shape of the male 10th tergite (strongly elongated, narrowed towards the apex and medially incised, Fig. 7 V), the male pronotum (metazona only a little widened and inflated), the absence of any dark patches or markings on the metazona, and by the female subgenital plate which has pointed apical lobes (Fig.11). A. jagoi n. sp. is morphologically related both to A. montium and A. usambaricus since in all three species males have similar cerci and an elongated 10th tergite. However, differences are seen in the shape of the tenth tergite, being broader in A. montium ( Fig. 7 N, Fig. 8 C) and A. uluguruensis ( Fig. 7 F), while it is much more elongated in A. jagoi n. sp ( Fig. 7 V). A. usambaricus ( Fig. 7 R) has an evenly rounded posterior margin of the 10th abdominal tergite, while is broadly incised in A. montium ( Fig. 7 N) but very acute and not very deeply in A. jagoi n. sp. ( Fig. 7 V). The coloration of A. jagoi n. sp. is similar to A. viridis n. sp., but the pronotum is uniformly green in A. jagoi n. sp. while it has a brown fascia in A. viridis n. sp. Also the 10th abdominal tergite is uniformly green in A. jagoi n. sp. while A. viridis n. sp. has a conspicuous yellow patch on the 10th tergite. For diagnosis of the female see at A. discolor n. sp.

Distribution: Tanzania; West Usambara Mountains.

Figures

FIGURE 7. Morphological details of male Afroanthracites species. A – D. Afroanthracites viridis n. sp. E – H. Afroanthracites uluguruensis n. sp. I – L. Afroanthracites discolor n. sp. M – P. A. montium Sjöstedt, 1909. Q – T. A. usambaricus Sjöstedt, 1913. U – X. A. jagoi n. sp. A, E, I, M, Q, U. Face. B, F, J, N, R, V. Dorsal view on abdominal apex. C, G, K, O, S, W. Lateral view on abdominal apex. D, H, L, P, T, X. Subgenital plate.

FIGURE 8. Morphological details of Afroanthracites species. A. Lateral view on male left cercus of A. discolor n. sp. C, E, G, I. Dorsal view on male abdominal apex with stretched out cerci of A. montium (C), A. usambaricus (E), A. viridis n. sp. (G) and A. uluguruensis n. sp. (I). K. Dissected left cercus of A. jagoi n. sp. B, D, F, H, J, L. Titillators of A. discolor n. sp. (B), A. montium (D), A. usambaricus (F), A. viridis n. sp. (H), A. uluguruensis n. sp. (J) and A. jagoi n. sp. (L).

FIGURE 9. Left cercus of male Afroanthracites species.