Carteronius arboreus Bonaldo & Haddad, 2022

Eb. Bonaldo, Ramírez, Martín J., Om. Labarque, Shimano, Yulie, Silva-Junior, Cláudio J. & Haddad, Charles R., 2022, Switching identities: a revision of the Afrotropical spider genus Carteronius Simon 1897 (Araneae, Corinnidae), senior synonym of Mandaneta Strand, 1932, with a new genus of the Pronophaea group, Zootaxa 5205 (4), pp. 343-373 : 353-356

Carteronius arboreus Bonaldo & Haddad sp. nov.

Figs 7 , 8 ; Map 1

Types. ♂ holotype from Bas Congo, Mayombe, Luki Forest Reserve (05°37’S, 13°05’E), 28.IX.2007, DEMOCRATIC REPUBLIC OF THE CONGO, D. de Bakker & J. P. Michiels leg. (sieving along trail in primary rainforest) ( MRAC 223.475 ) . ♀ paratype, same locality and collectors, 10.XI.2006 (Fog 3, primary rainforest) ( MRAC 220.925 ) .

Etymology. The specific name is a Latin adjective meaning arboreal, in reference to the fact that most of the known specimens were collected by canopy fogging.

Diagnosis. Males of Carteronius arboreus sp. nov. are similar to those of C. ashanti sp. nov. by the presence of a sub-apical embolar process ( Figs 8A , 10A ), but differ by the dorsal lobe of the RTA, which is broad and retrolaterally oriented, and the rounded medial lobe, which is small in relation to the dorsal lobe, and share the same base ( Fig. 8B ). In C. ashanti sp. nov., the dorsal lobe is spoon-shaped and the medial lobe longer and fang-shaped, with its own base. Females resemble those of C. sudanus comb. nov. in the strongly recurved epigynal transversal ridge ( Figs 4C , 8C ), but differ by the lateral plates of the epigynal posterior sector being strongly sclerotized ( Fig. 8C ).

Description. Male. (MRAC 223475). Measurements: Total length 6.03, CL 3.16, CW 2.71, AL 2.95, AW 2.24, SL 1.39, SW 1.49. Eye diameters and interdistances: AME 0.28, ALE 0.17, PLE 0.18, PME 0.16, AME-AME 0.65, AME-ALE 0.16, ALE-ALE 1.34, PME-PME 0.33, PME-PLE 0.37, PLE-PLE 1.57. Length of leg segments: I 3.08+1.17+2.67+2.29+1.22=10.43; II 3.10+1.24+3.10+2.24+1.27=10.95; III 2.07+0.93+1.61+1.65+0.96=7.22; IV 2.55+0.94+2.11+2.25+1.05=8.90. Chelicerae: promargin with three spaced teeth, median tooth largest; retromargin with two spaced teeth, subequal in size. Leg spination: femora: I do 0-1-0 pl 0-0-1-0, II do 0-1-0, III do 0-1-0, IV do 0-1-0; tibiae: I ve 2-2-2-2-2, II ve 1 p -1 r -1 p -2-2-2, III ve 1 r -1 p -2, IV rl 0-1-0-1 ve 1 p -0-1 p; metatarsi: I ve 2-2, II ve 2-2, III pl 0-1-0-1 rl 0-1-0-1 ve 2-2, IV pl 0-1-0-1 rl 0-1-0-1 ve 1 r -1 p -1 r -0. Coloration: carapace and chelicerae reddish-brown. Endites, labium and sternum reddish-brown. Legs I and II: coxae and trochanters reddish-brown; femora reddish-brown, yellowish distally; tibiae, metatarsi and tarsi yellowish. Legs III and IV yellowish. Abdomen dark gray dorsally, with two well defined white bands; white ventrally ( Fig. 7A ). Palp: RTA with apical spur short, curved and pointed, dorsal lobe with apical edges bent ventrally, ventral lobe rounded and excavated. Tegulum with short retrolateral apical tegular process, spermatic duct with long loop ( Fig. 8A, B ).

Female. (MRAC 220925). Measurements: Total length 10.58, CL 4.10, CW 3.86, AL 6.37, AW 4.91, SL 1.97, SW 1.93. Eye diameters and interdistances: AME 0.31, ALE 0.21, PLE 0.21, PME 0.18, AME-AME 0.25, AME-ALE 0.29, ALE-ALE 1.75, PME-PME 0.45, PME-PLE 0.49, PLE-PLE 2.13. Length of leg segments: I 3.87+1.81+3.70+2.88+1.28=13.54; II 3.70+1.73+3.66+2.99+1.31=13.39; III 2.75+1.32+2.17+2.08+0.91=9.23; IV 3.25+1.31+2.76+2.84+0.98=11.14. Chelicerae: promargin with three spaced teeth, median tooth largest; retromargin with two spaced teeth, subequal in size. Leg spination: femora: I do 0-1-0 pl 0-1-0, II do 0-1-0, III do 0-1-0-1 p, IV do 0-1-0-1 p; tibiae: I ve 2-2-2-2-2-2-2, II ve 2-2-2-1 r -1 p -1 r -1 p -1 r, III ve 1 p -1 r -2, IV rl 0-1-0-1 ve 1p-0-1 p; metatarsi: I ve 2-0-2-0, II ve 2-2-2, III pl 0-1-0-1 rl 0-0-0-1 ve 2-2-1, IV pl 0-1-0-1 rl 1-0-1 ve 1 p -1 r -1 p - 0-0. Coloration: Carapace and chelicerae dark reddish-brown. Endites, labium and sternum reddish-brown. Legs reddish-brown, with femora I and II darker. Abdomen gray, dorsum with scattered small white spots, denser in middle, forming irregular white longitudinal band; posteriorly with large triangular white spot. Ventrally gray with two irregular lateroventral white bands ( Fig. 7C ). Epigynum: CDv slight folded posteriorly, ST2 globose, anteriorly located, larger than ST1, CDd almost straight ( Fig. 8D ).

Other material examined. DEMOCRATIC REPUBLIC OF THE CONGO: Bas Congo, Mayombe, Luki Forest Reserve (05°37’S, 13°05’E), 18.IX.2007, D. de Bakker & J.P. Michiels leg. (Fog 5, old secondary forest), 1♀ ( MRAC) ; same data but 22.IX.2007, 1♀ ( MRAC) ; same data but 30.IX.2007, 1♂ ( MRAC) .

Distribution. Only known from the Democratic Republic of the Congo ( Map 1 ).

Figures

MAP 1. Distribution of Carteronius species and Bunyoronius femoralis sp. nov.

FIGURE 4. Carteronius sudanus (Karsch, 1880) comb. nov.: A male palp, ventral view; B same, retrolateral view; C epigynum, ventral view; D same, dorsal view. Abbreviations: E, embolus; C, conductor; MA, median apophysis; VL, ventral lobe; ML, medial lobe; DL, dorsal lobe; AS, spur; CDv, ventral sector of the copulatory duct; CDd, dorsal sector of the copulatory duct; ST2, secondary spermatheca; ST1 primary spermatheca. Scale: 1 mm.

FIGURE 7. Carteronius arboreus sp. nov.: A male abdomen, dorsal view; B male carapace, dorsal view; C female abdomen, dorsal view; D female carapace, dorsal view. Scale: 1 mm.

FIGURE 8. Carteronius arboreus sp. nov.: A male palp, ventral view (arrow: embolar process); B same, retrolateral view; C epigynum, ventral view (arrow: transversal ridge); D same, dorsal view. Abbreviations: E, embolus; C, conductor; MA, median apophysis; VL, ventral lobe; ML, medial lobe; DL, dorsal lobe; AS, spur; CDv, ventral sector of the copulatory duct; CDd, dorsal sector of the copulatory duct; ST2, secondary spermatheca; ST1 primary spermatheca. Scale: 1 mm.

FIGURE 10. Carteronius ashanti sp. nov.: A male palp, ventral view (arrow: retrolateral apical tegular process); B same, retrolateral view. Abbreviations: E, embolus; C, conductor; MA, median apophysis; VL, ventral lobe; ML, medial lobe; DL, dorsal lobe; AS, spur. Scale: 1 mm.