Sicarius andinus, Magalhaes & Brescovit & Santos, 2017

Magalhaes, Ivan L F, Brescovit, Antonio D & Santos, Adalberto J, 2017, Phylogeny of Sicariidae spiders (Araneae: Haplogynae), with a monograph on Neotropical Sicarius, Zoological Journal of the Linnean Society 179 (4), pp. 767-864 : 827-829

publication ID	https://doi.org/10.1111/zoj.12442
persistent identifier	https://treatment.plazi.org/id/0381691E-274B-9E20-ADCF-FE6D2324D99C
treatment provided by	Plazi
scientific name	Sicarius andinus
status	sp. nov.

Treatment

SICARIUS ANDINUS View in CoL SP. NOV.

Figures 27B View Figure 27 , 47 View Figure 47

Type material: Male holotype from PERU. Huanuco: Acomayo, Andes [76.05, 9.46, 1291 m], F. Woytkowski, VII/1946 (AMNH). Paratypes: PERU. Huanuco: Ambo [76.2, 10.13333, 2100 m], W. Weyrauch, 2 $ 2 imm. (AMNH); Acomayo [76.05, 9.46, 2100 m], F. Woytkowski,

VII/1946, 1 # 1 imm. ( AMNH); J.C. Pallister , 27/I/ 1947, 1 # ( AMNH) .

Etymology: The name is an adjective referring to the Andean distribution of this species.

Diagnosis: Males can be distinguished by the long and robust embolus set off at approximately 90 ° from the rest of the bulb ( Fig. 47A, B View Figure 47 ); they are somewhat similar to those of S. diadorim and S. jequitinhonha sp. nov. ( Fig. 58 View Figure 58 ), but differ by the more robust embolus and by lacking prolateral black setae in the femora. Females can be distinguished by the spermathecae with six finger-like branches slightly convoluted and having a small reservatory at the apex; and by the the most ectal branches well separated from the medians and pointing laterad ( Fig. 47C, D View Figure 47 ).

Description: Male holotype ( Acomayo , Huanuco, Peru, AMNH). Coloration: carapace reddish, chelicerae, labium and endites reddish brown, sternum orange, legs brownish orange, abdomen brownish yellow. Total length 9.8. Carapace length 5.32, anterior width 1.98, thoracic region width 5.07. Eye diameters and interdistances: PME 0.18, ALE 0.18, PLE 0.18, PME – PLE 0.51, ALE – PLE 0.18. Clypeus height 0.86. Eye tubercles present. Macrosetae in lateral border of the carapace in multiple rows. Femora without prolateral black setae. Sternum length 2.49, width 2.52, cordiform. Femoral thorns: 4. Leg I: femur 6.95 long, patella 2.19, tibia 7.67, metatarsus 6, tarsus 2.64. II: fe 8.25, ti 8.5. III: fe 6.83, ti 6.61. IV: fe 82, pa 2.03, ti 6.68, mt 5.86, ta 2.49. Abdomen: length 4.67, width 4.46. Palp as in Figure 47A and B View Figure 47 .

Female paratype from Ambo , Huanuco, Peru ( AMNH). Coloration as in male, except for reddish brown carapace and light brown legs. Total length 12.38. Carapace length 5.93, anterior width 2.41, thoracic region width 5.86. Eye diameters and interdistances: PME 0.2, ALE 0.23, PLE 0.23, PME – PLE 0.58, ALE – PLE 0.31. Clypeus height 1.17. Eye tubercles present. Macrosetae in lateral border of the carapace in multiple rows. Femora without prolateral black setae. Sternum length 2.86, width 3.06, cordiform. Femoral thorns: 7. Leg I: femur 6.75 long, patella 2.55, tibia 7, metatarsus 5,39, tarsus 2.53. II: fe 7.17, ti 7.08. III: fe 6.61, ti 6.27. IV: fe 6.75, pa 2.27, ti 6.27, mt 4.97, ta 2.55. Abdomen: length 6.41, width 6.34. Spermathecae branches: 5. Ventral branches absent. Spermathecae as in Figure 47C and D View Figure 47 .

Variation: Males (N = 3): carapace length 5.07 – 5.93 (5.44), femoral thorns 4 – 6, femur II length 7.92 – 9.3 (8.49). Females (N = 2): carapace length 5.93 – 6 (5.97), femoral thorns 5 – 7, femur II length 7.17 – 7.33 (7.25), spermathecae branches 5 – 6. Genital morphology does not vary in the small series we have had the chance to examine. Subadult females have pre-spermathecae with four branches grouped in the middle of the bursa ( Fig. 47E, F View Figure 47 ).

Distribution: Known only from the Peruvian Andes, in the province of Huanuco ( Fig. 27B View Figure 27 ).

Additional material examined: PERU. Huanuco: Acomayo [76.05, 9.46, 2100 m], W. Weyrauch, III/ 1940, 1 imm. ( AMNH); same data as holotype, 6 imm. ( AMNH) .