Hexophthalma, KARSCH, 1879

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 : 850

publication ID	https://doi.org/10.1111/zoj.12442
persistent identifier	https://treatment.plazi.org/id/0381691E-2724-9E4D-AEB2-FAE6277DD9AC
treatment provided by	Plazi
scientific name	Hexophthalma
status

Treatment

HEXOPHTHALMA KARSCH, 1879 View in CoL View at ENA , REVALIDATED

Hexomma Karsch, 1878: 325 View in CoL . Type species by monotypy Hexomma hahnii Karsch, 1878 .

Hexophthalma Karsch, 1879: 109 View in CoL . Replacement name for Hexomma Karsch, 1878 View in CoL ; preoccupied by Hexomma Thorell, 1876 View in CoL ( Opiliones View in CoL : Sclerosomatidae View in CoL ).

Diagnosis: Species of Hexophthalma can be distinguished from Sicarius by the lack of posterior median spinnerets ( Fig. 11A, C View Figure 11 ); palpal bulb with a long body with parallel sides ( Fig. 23C View Figure 23 ) (subconical in Sicarius ); and lack of a setae tuft anterior to the spinnerets in females.

Description: As for the subfamily, except for the following. Chelicerae lamina with weakly sclerotized apex ( Fig. 13B View Figure 13 ) (except H. spatulata comb. nov., with strongly sclerotized apex). Sternum cordiform, wider than long and posteriorly truncate. Palp with simple, not sculptured femoral thorns ( Fig. 18G View Figure 18 ). Leg femora without prolateral black setae, with white macrosetae (and brown macrosetae in H. spatulata comb. nov.), which might be medially widened ( Fig. 24A View Figure 24 ). Trichobothria with a distal smooth surface ( Fig. 31H View Figure 31 ). ALS with black setae short, not covering the spinning field, without major ampullate gland spigots. PMS absent, sometimes replaced by setae ( Fig. 11C View Figure 11 ). Male palpal bulb with parallel sides, with embolus long and sinuous ( Figs 20A, C View Figure 20 and 21A, C View Figure 21 ) or broad and blunt, with a keel ( Figs 20E View Figure 20 , 22C, D, E View Figure 22 ). Inner spermathecae branched, with branches arising from a single stalk ( Figs 19C View Figure 19 , 20B, D View Figure 20 ). Outer spermathecae present, not branched, reduced ( Figs 19C View Figure 19 , 20B, D View Figure 20 ) (branched in H. spatulata comb. nov.).