Afroanthracites guttatus, Hemp & Heller, 2019

Hemp, Claudia & Heller, Klaus-Gerhard, 2019, New Agraeciini species from the Eastern Arc Mountains, East Africa (Orthoptera: Tettigoniidae; Conocephalinae; Agraeciini), Zootaxa 4664 (3), pp. 301-338: 302-304

publication ID

https://doi.org/10.11646/zootaxa.4664.3.1

publication LSID

lsid:zoobank.org:pub:BE28074F-46B8-4FA5-B6DB-F1276A4C7C40

persistent identifier

http://treatment.plazi.org/id/98473E49-FFFC-8678-A0BD-FB5BFD32F86F

treatment provided by

Plazi

scientific name

Afroanthracites guttatus
status

n. sp.

Afroanthracites guttatus   n. sp. Hemp C.

( Figs. 1–4 View FIGURE 1 View FIGURE 2 View FIGURE 3 View FIGURE 4 , 5 A View FIGURE 5 , 6A View FIGURE 6 , 39 View FIGURE 39 , 42 View FIGURE 42 , Table 1 View TABLE 1 )

Holotype: male. Tanzania, North Pare Mountains , Mt Kindoroko, montane forest, December 2016   . Paratype female, same data as holotype but August 2015. Depository: collection C. Hemp   .

Additional paratypes: 3 females, 7 nymphs, same data as   holotype but April 2001, August 2015, September 2015, December 2016 and October 2017. 1 female, North Pare Mountains , Mt Kindoroko , montane forest, summit of Mt Kindoroko , 2100 m, December 2016. 6 males, Mt Kiverenge, North Pare Mountains, March 2019. Depository: collection C. Hemp   .

Description. Male. General aspect brown to black with mix of brown to black and white and green patches. Medially on dorsal abdomen on each tergite tri-angle shaped brown markings bordered by whitish to green area—this pattern fading in preserved insect (see Fig. 3 B View FIGURE 3 and Fig. 6 A View FIGURE 6 , pattern of living female). Head and antennae. Fastigium verticis finger-like elongated, about as long as scapus ( Fig. 2 B View FIGURE 2 ). Face with broad tri-angled shaped fascia, labrum and mandibles orange-red ( Fig. 5 View FIGURE 5 , female). Genae green. Antennae long, more than twice the length of body. Scapus with black upper margin and several black dots on green ground. Thorax. Pronotum rugose, rounded, posterior area (in metazona) slightly inflated. Tegmina hidden for most of their length under pronotum, only straight deep black hind margin of tegmina visible. On metanotum with dark black patch. Width of the mirror (see Hemp et al. 2015) on the left tegmen 1.64 mm, its length 1.29 mm. Legs. Fore coxa with rather stout, little curved spine. Fore and mid femora with 3 outer ventral spines, hind femur with 4 outer spines, unarmed on inner side. Fore and mid tibiae with double row of each 4-6 irregular set black-tipped ventral spines and two ventral spurs. Hind tibiae with 3 rows of densely set small black-tipped spines, on dorsal side apically broadening to 4 rows of spines. One long spur on each side dorsally and three pairs of short spurs ventrally. Abdomen. Tenth abdominal tergite at posterior margin wid- ened, with almost straight and callous margin and a slight median indentation ( Fig. 1 A View FIGURE 1 ). Subgenital plate elongated, posteriorly up-curved and v-shaped incised medially, with finger-like styli ( Fig. 1 B View FIGURE 1 ). Cerci laterally expanded, with acute process midway and an inner branch divided into two short branches ( Fig. 1 A, B View FIGURE 1 ).

Female. Similar to male in size and colour pattern ( Fig. 2 A, B View FIGURE 2 ), also with black fascia in the face and orange-red labrum and mandibles ( Fig. 5 A View FIGURE 5 ). Ovipositor stout, up-curved ( Fig 3 A View FIGURE 3 ). 10 th abdominal tergite differentiated into two shallow lobes with callous margins ( Fig. 3 B View FIGURE 3 , 4 A View FIGURE 4 ). Subgenital plate rectangular with u-shaped incision medially at posterior margin, thus forming two lobes with sinous margins ( Fig. 4 B View FIGURE 4 ).

Measurements, male (mm) (N = 4). Body length 20.0–22. Length of pronotum 8.0–8.5. Length of hind femur 10.9–11.4.

Measurements, female (mm) (N = 4). Body length 20.5–24.5. Length of pronotum 6.0–6.3. Length of hind femur 11.5–13.0. Ovipositor 10.0.–10.8.

Song. The single recorded male produced isolated echemes in intervalls of about 2 minutes (recording time 45 min). See Fig. 39 View FIGURE 39 , 42 View FIGURE 42 and Table 1 View TABLE 1 for details.

Diagnosis. See at A. maculatus   n. sp.

Habitat. Submontane to montane closed forest. Understory dweller found at night in trees and bushes. Recorded between 1750 and 2100 m.

Distribution. Tanzania, North Pare Mountains.

Etymology. The species is named after is speckled colour pattern of many irregular set brown to black and white patches from Latin— guttatus   , speckled.