Actinopus lomalinda, Miglio, Laura Tavares, Pérez-Miles, Fernando & Bonaldo, Alexandre B., 2020

Miglio, Laura Tavares, Pérez-Miles, Fernando & Bonaldo, Alexandre B., 2020, Taxonomic Revision of the Spider Genus Actinopus Perty, 1833 (Araneae, Mygalomorphae, Actinopodidae), Megataxa 2 (1), pp. 1-256 : 202-207

publication ID

https://doi.org/ 10.11646/megataxa.2.1.1

DOI

https://doi.org/10.5281/zenodo.5655681

persistent identifier

https://treatment.plazi.org/id/0975136A-FF44-CE93-FF77-F88FDF343B77

treatment provided by

Plazi

scientific name

Actinopus lomalinda
status

sp. nov.

Actinopus lomalinda sp. nov.

Figs 182–186 View FIGURE 182 View FIGURE 183 View FIGURE 184 View FIGURE 185 View FIGURE 186 , Map 11 View MAP 11

Type material. Holotype male from 03° 18’ N 73° 22’ W, 300m, Lomalinda , Puerto Lleras, Meta, Colômbia, B. T. Carrol leg. ( CASENT 9046026 ) GoogleMaps . Paratypes: COLOMBIA: Meta: Puerto Lleras, Lomalinda , 300m, 03° 18’ N 73° 22’ W, 1 GoogleMaps ♂, iv.1987, B. T. Carrol leg. ( CASENT 9020955 ); 1♂2J , 15.iv.1986, B. T. Carrol leg. ( CASENT 9048526 ); 2 ♂, ii.1987, B. T. Carrol leg. ( CASENT 9020954 ) ; iii.1987, B. T. Carrol leg. ( CASENT 9046028 ); 4♂ 1♀ , 17.iii.1984, B. T. Carrol leg ( CASENT 9020953 ); 8♂4J , 10.ii.1987, B. T. Carrol leg. ( CASENT 9020959 ) . BRITISH GUIANA: Potaro River, Tumatumari , [05° 15’ N 59° 08’ W], 1♀ GoogleMaps , 29.vi.1927 ( AMNH); Bartica District : Cuyuni-Mazaruni (Region 7), Kartabo Village , [06° 27’ N 60° 12’ W], 1♂ 1924 ( AMNH) GoogleMaps .

Etymology. The specific name is a noun in apposition from the type locality name.

Diagnosis. Males of Actinopus lomalinda differ from all other species of the genus by the apical tegular process of 3/4 the size of the embolus and tegulum without prolaterals apophysis in dorsal view. A. robustus ( Fig. 181 View FIGURE 181 A–C), A. palmar ( Fig. 189 View FIGURE 189 A–C), A. cucutaensis ( Fig. 176 View FIGURE 176 A–C) and A. guajara ( Fig. 192 View FIGURE 192 A–C) shared with A. lomalinda those ATP, but only in A. cucutaensis , A. lomalinda and A. guajara those ATP appears separated and parallel to the embolus in prolateral view. They differ from those of A. cucutaensis by the ATP angle of insertion on tegulum and in the presence of a small-serrated area, which occupies only 20% of the embolus, in dorsal view ( Fig. 186 View FIGURE 186 A–C). Females differ from all other species, except A. obidos ( Fig. 26 D View FIGURE 26 ) by a spermathecae with a unique receptacle. Differs from A. obidos by absence of swelling on external lateral of receptacle ( Fig. 186 D View FIGURE 186 ).

MALE (CASENT 9046026): Total length 17.38; Carapace, long 6.12; wide 5.62. Carapace anterior part tapering. Anterior eye row slightly procurved, posterior row recurved ( Fig. 182 B View FIGURE 182 ). With five short bristles between AME-clypeus. Without bristles between ALE–ALP and many short and weak bristles between posterior eyesfovea and lateral eyes-edge of carapace. Sternum with eight sigilla fused medially, two distal sigilla more fused than others ( Fig. 182 C View FIGURE 182 ). Rastellum protuberant, inverted V-shaped, hirsute, without spines apically ( Fig. 182 View FIGURE 182 E–F). Chelicerae with nine denticles along prolateral row of teeth. Prolateral row with six megateeth. Retrolateral row with five megateeth and one denticle between the three distal and two basal megateeth ( Fig. 182 D View FIGURE 182 ). Patella and tibia III with distal crown of well developed thorns, on patella III interrupted in middle and on tibia III not interrupted in middle ( Fig. 183 View FIGURE 183 A–B). Patellae III and IV with spines on prolaterodorsal face ( Fig. 183 A, C View FIGURE 183 ). Tibia IV without spines on prolateral surface ( Fig. 183 D View FIGURE 183 ). Ventral pseudoscopulae occupying 50% of tarsus I, 70% of II and 100% of III and IV. Pseudoscopula of tarsi I and II with setae spaced, forming diffuse group of bristles; In tarsi III and IV, compact. Carapace, chelicerae, sternum, coxae, trochantera, femora, patellae, tibiae, metatarsi and tarsi reddish brown; Abdomen pale gray ( Fig. 182 A View FIGURE 182 ). Eyes: Diameters: PME 0.2, PLE 0.24, ALE 0.44, AME 0.32; MOQ: Length 1.04, front width 2.4, back width 2.28; Interdistances: PME–PME 1.44, PLE–PME 0.08, AME–AME 0.16, ALE–AME 0.48, ALE–PLE 0.48, AME–PME 0.44. Ocular area: OAL 4, OAW 3.5, and IF 1.75. Body: Clypeus: 0.25; Fovea: 2.37; Labium: long 1.5; wide 1; Chelicerae: long 2.62; wide 1.75; Sternum: long 3.75; wide 3. Abdomen: long 8.5; wide 6.25. Leg measurements: I: Fe 6.75/ Pa 2.87/ Ti 4.25/ Me 4.75/ Ta 2.62/ total 21.25. II: 6.5/ 2.75/ 4/ 5/ 2.5/ 20.75. III: 5/ 2.87/ 3.25/ 5.62/ 3/ 19.75. IV: 7/ 3.12/ 5.62/ 6.25/ 3.12/ 25.12. Formula 4123. Spination: I—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v1-4-4, d0, p0-0-1, r0-0-2; Me v1-4-4, d0, p0-3-2, r1-2-2; ta v1-2-2, d0, p1-2-2, r0-2-3. II—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v0-4-3, d0, p0, r0-5-4; Me v4-4-3, d0, p1-2-1, r0-2-3; ta v1-2-3, d0, p3-4-6, r1-3-6. III—Fe v0, d0, p0, r0; Pa v0, d7-18-25, p0-0-2, r0-0-4; ti v0-0-6, d1-0-16, p0-0-2, r0-2-4; Me v3-5-6, d0-1-2, p1-2- 3, r1-2-6; ta v0, d0, p0-3-4, r2-12-4; IV—Fe v0, d0, p0, r0; Pa v0, d28-8-5, p0, r0; ti v0-0-2, d0, p0, r0; Me v2-4- 3, d0, p0-2-3, r0-0-1; ta v0, d0, p1-6-7, r1-6-6. Palp: PA well developed. Embolus without keels. ATP nearly 3/4 the size of the embolus. BTA poorly developed; prolateral tegulum with three cusps next the embolus base, embolus inserted at 20° angle on the basal portion of the copulatory bulb; embolar bases thin ( Figs. 186 View FIGURE 186 A–C).

FEMALE (CASENT 9020953): Total length 19.5; Carapace, long 7.25; wide 6.87. Carapace anterior part square and posterior part triangular. Anterior eye row procurved, posterior row slightly recurved ( Fig. 184 B View FIGURE 184 ). Many short and long bristles between AME-clypeus, one long bristle between PLE–ALE, short and long bristles between posterior eyes-fovea and short bristles between lateral eyes-edge of carapace. Sternum with eight sigilla fused medially, all sigilla very fused to each other ( Fig. 184 C View FIGURE 184 ). Rastellum protuberant, subquadrate, hirsute, with a row of short spines on the edge of rastellum and o lot of short spines covering the dorsal rastellum ( Fig. 184 View FIGURE 184 E–F). Chelicerae with 13 denticles along prolateral row of teeth. Prolateral row with eight megateeth and one tooth, basal to megateeth. Retrolateral row with five megateeth and two teeth between three basal megateeth ( Fig. 184 D View FIGURE 184 ). Patella III with distal interrupted crown of thorns and tibiae III with distal developed crown of thorns ( Fig. 185 View FIGURE 185 A–B). Patella IV with prolaterodorsal short spines along extension of article ( Fig. 185 C View FIGURE 185 ). Tibia IV without spines ( Fig. 185 D View FIGURE 185 ). Carapace, chelicerae, sternum, coxae, trochantera, femora, patellae, tibiae, metatarsi, tarsi and palp reddish brown; Abdomen pale brown with a big basal portion of unpigmented area in dorsal view ( Fig. 184 A View FIGURE 184 ). 11 labial cuspules, 87 on right maxilla and 89 on left. Eyes: Diameters: PME 0.24, PLE 0.36, ALE 0.4, AME 0.24; MOQ: Length 1.2, front width 3.16, back width 3.12; Interdistances: PME–PME 1.92, PLE–PME 0.16, AME–AME 0.36, ALE–AME 0.92, ALE–PLE 0.6, AME–PME 0.72. Ocular area: OAL 5.75, OAW 3.87, and IF 2.5. Body: Clypeus: 0.37; Fovea: 3.12; Labium: long 1.62; wide 1.37; Chelicerae: long 3.87; wide 2.75; Sternum: long 4.75; wide 3.75. Abdomen: long 11; wide 6.87. Leg measurements: I: Fe 3.37/ Pa 2.75/ Ti 1.75/ Me 1.75/ Ta 0.87/ total 10.5. II: 3.5/ 2.75/ 1.87/ 1.87/ 0.87/ 10.87. III: 3.5/ 2.87/ 1.5/ 1.75/ 0.87/ 10.5. IV: 4.25/ 3.25/ 2.87/ 3/ 1/ 14.37. Formula 4123. Spination: I—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v0-1-1, d0, p1-1-4, r6-7-11; Me v2-1-2, d0, p4-4-3, r6-9-4; ta v0-0-2, d0, p3-4-2, r5- 3-2. II—Fe v0, d0, p0, r0; Pa v0, d0, p0, r0; ti v1-4-1, d0, p0, r17-22-26; Me v2-1-3, d0, p4-5-4, r5-8-6; ta v0-2-3, d0, p3-4-4, r3-0-0. III—Fe v0, d0, p0, r0; Pa v0, d0-0-30, p0-0-6, r0-1-26; ti v0, d1-0-15, p0-0-2, r8-14-13; Me v0- 0-6, d10-7-3, p0, r9-10-13; ta v20-21-11, d0-0-4, p0-0-4, r5-12-6; IV—Fe v0, d0, p0, r0; Pa v0, d14-14-7, p0, r0; ti v0, d0, p0, r0; Me v0-0-3, d0, p0-1-3, r0; ta v12-16- 14, d0, p0-7-10, r0-0-4. Spermathecae: Represented by a single bilobed seminal receptacle strongly fused to base, longer than wide, with short duct. Left lobe in dorsal view thinner than right lobe. Pore field reaching base medially; basal lateral areas of receptacle devoid of pores. Lateral swelling absent ( Fig. 186 D View FIGURE 186 ).

Distribution. COLOMBIA. Meta: Puerto Lleras. BRITISH GUIANA. Tumatumaru; and Bartica District: Cuyuni-Mazaruni ( Map 11 View MAP 11 ).

T

Tavera, Department of Geology and Geophysics

AMNH

American Museum of Natural History

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Actinopodidae

Genus

Actinopus