Soesilarishius amrishi Makhan, 2007

Ruiz, Gustavo R. S. & Sobrinho, Adriana T., 2016, Three new species and redescription of the type species of Soesilarishius Makhan, 2007 (Araneae: Salticidae: Euophryini), Zootaxa 4196 (2), pp. 250-260: 251

publication ID

http://doi.org/10.11646/zootaxa.4196.2.4

publication LSID

lsid:zoobank.org:pub:3B2AC3D7-D743-4ADB-8C42-5FBFD05E01A1

persistent identifier

http://treatment.plazi.org/id/038A7A13-FFEC-3B59-19FD-9D1CFC24F8FB

treatment provided by

Plazi

scientific name

Soesilarishius amrishi Makhan, 2007
status

 

Soesilarishius amrishi Makhan, 2007 

Figs 1‒11View FIGURES 1 – 4View FIGURES 5 – 11

Soesilarishius amrishi Makhan, 2007: 2  , figs 4–6, 10–11 (♂ holotype from Kasikasima , Sipaliwini, Suriname, 27.III.1996, leg. D. Makhan, deposited in the collection of Department of Entomology, University of Suriname, Paramaribo, Suriname, not examined). 

Soesilarishius cf. amrishi: Zhang & Maddison, 2015: 61  , figs 271–274 (♂ from Manaus, Brazil, used in molecular study).

Material examined. BRAZIL: Amazonas: Manaus, Fazenda Experimental , Universidade Federal do Amazonas, km 38, BR-174, 02°38'55.80"S, 60°03'09.40"W: 3 Ƌ, no date, leg. E.P. Franken & A.C.K. Silva ( INPA)GoogleMaps  ; Pará: Oriximiná, Floresta Estadual do Trombetas  , Rio Acapu (along about 25 km on the North margin, between 01°06'10.10"S, 56°26'04.00"W and 01°07'30.50"S, 56°19'05.50"W): 40 Ƌ, 34 ♀, 10–18.X.2014, leg. M.B. Aguiar- Neto et al. ( MPEG 31951–31977, 32009, 32010).GoogleMaps 

Note. The palp of the male from Manaus used in the molecular study by Zhang & Maddison (2015) looks slightly different from our drawing, especially the embolus, probably because it was expanded in that specimen. The specimens listed above from the same locality in Manaus have palps that agree with the one described here.

Diagnosis. The male differs from those of other species by having a nearly straight embolus emerging distally at a sclerotized area and forming an obtuse angle with the prolateral portion of its base ( Figs 5, 8View FIGURES 5 – 11); with no projection on tegular shoulder (where the sperm duct folds back after entering the tegulum), and simple, ventrally curved RTA ( Fig. 6View FIGURES 5 – 11). The female is similar to that of S. elongatulus  sp. nov. by sharing the thin initial portion of the copulatory duct leading to a large spermatheca ( Figs 11View FIGURES 5 – 11, 36View FIGURES 33 – 37), but can be recognized for having the coupling pocket divided into two triangular pockets ( Figs 9‒10View FIGURES 5 – 11).

Redescription. Male ( MPEG 32010). Total length: 3.02. Carapace dark brown, with cephalic area black and light metallic sheen ( Fig. 1View FIGURES 1 – 4); 1.71 long, 1.35 wide, 1.00 high. Ocular quadrangle 0.95 long; anterior eye row 1.31 wide, posterior 1.09 wide. Chelicera, labium, endite and sternum dark brown ( Fig. 2View FIGURES 1 – 4). Palp dark brown, tibia with low ventral bump, triangular RTA pointing ventrally ( Fig. 6View FIGURES 5 – 11), and round prolateral distal bump ( Fig. 7View FIGURES 5 – 11); cymbium proximally with depression near the RTA. Legs 1342; I ‒III with femora, patellae, tibiae and metatarsi brown and tarsi yellow (brighter in leg I); IV with femur, patella and tibia brown, metatarsus and tarsus yellowish. Length of leg I 3.73 (1.26 + 1.50 + 0.97); II 2.90 (0.95 + 1.07 + 0.88); III 3.70 (1.26 + 1.28 + 1.16); IV 3.28 (0.95 + 1.07 + 1.26). Abdomen dorsally dark brown with two pairs of white areas covered with white scales, one on anterior part and second in middle ( Fig. 1View FIGURES 1 – 4); laterally with median pair of such light areas; dark brown ventrally ( Fig. 2View FIGURES 1 – 4). Spinnerets dark brown.

Female ( MPEG 32009). Total length: 3.82. Carapace yellow, with cephalic region black ( Fig. 3View FIGURES 1 – 4); 1.97 long, 1.16 wide, 0.86 high. Ocular quadrangle 0.78 long; anterior eye row 1.14 wide, posterior 0.95 wide. Chelicera, labium, endite, sternum and palp yellow ( Fig. 4View FIGURES 1 – 4). Legs 2431; I ‒II yellow; III: femur yellow, distally dark brown, patella dark brown, tibia proximally dark brown and distally yellow, metatarsus and tarsus yellow ( Fig. 3View FIGURES 1 – 4); IV: femur proximally yellow, distally dark brown, patella with same pattern, tibia and metatarsus proximally dark brown and distally yellow, tarsus yellow ( Fig. 3View FIGURES 1 – 4). Length of leg I 3.14 (1.05 + 1.31 + 0.78); II 2.46 (0.78 + 0.90 + 0.78); III 3.21 (1.14 + 1.07 + 1.00); IV 3.26 (1.00 + 1.07 + 1.19). Abdomen as in male, with pattern less conspicuous; yellow ventrally ( Fig. 4View FIGURES 1 – 4). Epigynal plate with pair of median copulatory openings in front of split coupling pockets ( Fig. 9View FIGURES 5 – 11); internally with glands on initial portion of copulatory duct and long thin duct leading to bean-shaped spermatheca, from which the fertilization duct emerges dorsally ( Figs 10‒11View FIGURES 5 – 11). Spinnerets light brown.

Distribution. Known from Suriname and Brazil (Amazonas, Pará).

INPA

Instituto Nacional de Pesquisas da Amazonia

MPEG

Museu Paraense Emilio Goeldi

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Salticidae

Genus

Soesilarishius

Loc

Soesilarishius amrishi Makhan, 2007

Ruiz, Gustavo R. S. & Sobrinho, Adriana T. 2016
2016
Loc

Soesilarishius amrishi

Makhan 2007: 2
Loc

Soesilarishius cf. amrishi:

Zhang 2015: 61