II/1. Posterior margin of the cephalothorax and the pedicel visible from above. Coxae of the second pair of legs separated
from the coxae of the third pair of legs. The fourth pair of legs with the coxae not shorter than the trochanter, or at least not
much shorter. . . ................................................................................................. ................... click 3
- Posterior margin of the cephalothorax and the pedicel invisible from above, covered by the abdomen. All coxae on both
sides contiguous . . . . . . . . . . . . . . . . . . . . . ........................................................................ . . click 5
II/3(2). Pars cephalica higher than the pars thoracica. Sternum truncate in front, not attenuated, anterior ae separated from
one another more widely, or at least not more narrowly, than the rest of the coxae. Inferior margin of the chelicerae with a
single tooth. . . . . . .. . . . . . . . . . . . . . ZUNIGEAE [ Sarinda, Simprulla, Zuniga,]
Sarinda sp Sarinda nigra
Simprulla nigricolor,
Zuniga magna
- Pars cephalica not higher than pars thoracica. Sternum attenuated in front and the coxae of the first pair of legs close
together. . Inferior margin of the chelicerae with a single tooth. First pair of legs robust, femur clavate and tibia ovate.
[ Bellota, Chirothecia, Descanso,Osericta, Semora, Semorina, Sebastira]
Bellota wheeleri
-
Chirothecia clavimana
Descanso discicollis Descanso ventrosus
Osericta chelifer
Semora
Semorina brachychelynae Semorina megachelynae
Sebastira instrata plana
II/5. Inferior margin of the chelicerae without a tooth or with only a very minute and fine tooth ....click 6
- Inferior margin of the chelicerae with a strong conical tooth. . . . . . . . ................... . .... . . click 9
6. without tooth 
9. large tooth 
II/6(1). Third pair of legs much longer than the fourth pair of legs . . . . . . . . . . . . ......... . . . . . click 7
- Third pair of legs much shorter than the fourth pair of legs . . . . . . . . . . . . . .................. . . . . .click
8 II/7(6). Pars cephalica strongly tuberculate near the eyes, depressed on each side between the eyesț Sternum wide,
hardly at all attenuate in front, and broadly truncate, the coxae of the first pair of legs widely separated.... [Corythalia]
Corythalia sp. 1 Corythalia argentinensis
Corythalia sp. 2.
- Pars cephalica flat, not impressed on the sides. Sternum strongly attenuated in front, and the coxae of the first pair of
legs close together. [ Saitidops]
II/8(6). Pars thoracica impressed with a thoracic groove behind the eyes. Legs with numerous strong spines . SITTICEAE
577 (cf Sitticus ) [Sitticus, Ailluticus, ]
Sitticus canus Sitticus leucoproctus
Ailutticus nitens
- Pars thoracica without a thoracic groove. Legs weakly and sparingly spined [ Jollas, Semiopyla, ]
Jollas amazonicus Type species Jollas geniculatus (from Venezuela)
Semiopyla cataphracta (1 mm long!),
II/9(5). Tibia and patella of the third pair of legs longer (or at least not shorter) than the tibia and patella of the fourth
pair of legs. ........................................................................................................ . .click 10
-Tibia and patella of the third pair of legs shorter than the tibia and patella of the fourth pair of legs click 17
II/10(9). Ocular quadrangle large, with sides parallel or wider behind than in front, but narrower than the cephalothorax
behind. Posterior eyes (of 3rd row) of moderate size, separated from the small eyes of the 2nd row by more than the
width of one posterior eye. Pars cephalica tuberculate on each side and depressed between the eyes. Posterior legs with
numerous strong spines. Sternum strongly attenuate in front.. [ Diagondas, Frigga), Nycerella ,Phiale ]
Diagondas
Frigga sp. cf. coronigera Frigga coronigera
Frigga crocuta (transpacific: S America to Australia)
Nycerella delecta from Costa Rica Nycerella volucripes [Attention: distinct similarities to European Icius]
Phiale guttata
- Ocular quadrangle with sides often narrower behind than in front, or parallel ................................................ . click 13
II/13 (10). Labium not longer than its width at the base. Sternum short, not attenuated in front, and broadly truncate.
[ Ilargus, Maeota]
Ilargus coccineus
Maeota dichrura
- Labium distinctly longer than wide. Sternum more or less attenuated in front. Ocular quadrangle much narrower behind
than in front, small eyes of the 2nd row located much closer to the anterior laterals than to the posterior laterals (3rd row)
[Attention: cuplets 10-16 repeat the same state of characters as difference - to be checked on specimens - JP.] click 16
II/16 (15). [Asaracus, Chira (= ?Shira), Vinnius, ]
Asaracus sp. - Brazil Asaracus megacephalus
Chira cf. distincta Chira trivittata
Vinnius subfasciatus
Ocular quadrangle a little narrower behind than in front. Posterior eyes large, separated from the small eyes of the 2nd row by
less than the width of the posterior eye (or at least not more). Small eyes midway between the anterior and posterior laterals or
perhaps slightly closer to the posteriors. PLEXIPPEAE 710 [ Capidava, Eustiromastix, Freya, Plexippus, Thiratoscirtus, ]
Capidava auriculata
Eustiromastix sp. Eustiromastix obscurus
Freya regia Freya chionopogon Freya maculatipes
Plexippus paykulli
Thiratoscirtus patagonicus [possibly African genus, type mislabelled by Simon - see. T. Szuts]
- II/17(9). Small eyes of the second row much further from the posterior laterals than from the anterior ..click 18
- Small eyes of the second row midway (or nearly) between the anterior and posterior laterals.... 24
II/18 (17). Ocular quadrangle much wider behind than in front . . . . . . . . . . . . . . . . . ........ . . . 19
- Ocular quadrangle with virtually parallel sides .Cephalothorax normal, gradually sloping behind. Anterior
legs more robust than the others .....click 22
II/19 (18). Posterior legs with numerous strong spines. Pars thoracica marked with a short oval thoracic groove
distinctly behind the eyes (except Atelurius).. HURIEAE 583 Hurius) [Atelurius, Hurius, Scoturis, ]
Atelurius segmentatus
Hurius vulpinus
Hurius aeneus
Scoturis tigris
- Posterior legs with only a few minute spines, usually unarmed, except for the metatarsi and the apical whorls of spines 20
II/20 (19). Pars thoracica longer than the pars cephalica, and marked by a thoracic groove behind the eyes DENDRYPHANTEAE
(in part) [ Ashtabula, Avitus, Bagheera, Dendryphantes, , Hentzia, Lurio, Paradamoetas Sassacus, Thammaca]
Ashtabula zonura dentata sexguttata
Avitus longidens diolenii
Bagheera kiplingi
Dendryphantes - Palaearctic species: D. rudis
Dendryphantes - Palaearctic species: D. hastatus (type species)
Dendryphantes mordax - species from Uruguay:
Hentzia palmarum - type species
Lurio sp. Lurio solennis
Paradamoetas formicina
Sassacus papenhoei - type species from USA
Sassacus flavicinctus
Thammaca coriacea
- Cephalothorax very wide. Pars thoracica shorter than the pars cephalica or at least
not longer, either without a thoracic groove, or a with a very minute, hardly visible one between the eyes .[Alcmena, Bianor]
Alcmena psittacina
Bianor biocellosus (single S American species)
II/22 (21). Sternum strongly attenuated in front, almost as much as in Marpissa. Ocular quadrangle with parallel sides
- Sternum hardly at all attenuated in front and widely truncate between the anterior coxae. Ocular quadrangle slightly
narrower behind than in front . . . . . . ................................................................................. . . . click 23
II/23 (22). Anterior eyes in a recurved line. 4th pair of legs unarmed, long, with the trochanters hardly shorter than the coxae.[ Itata] .
Itata sp.
Itata tipuloides
Anterior eyes in a straight or very slightly procurved line. Fourth pair of legs normal, with few minute spines [Cotinusa]
Cotinusa sp distinct trifasciata puella - unclear - is it pluridentaot or unidentati?
[Attention: Simon 1901a list Cotinusa as Pluridentati (pages 456-468) and Gophoa as Unidentati) (p.588-589) (synonymyzed by Galiano 1963b: 360)]
II/24 (17). Sternum strongly attenuated in front and the coxae of the first pair of legs subcontiguous. Thoracic groove rather
long, situated a little behind the posterior eyes. Anterior legs usually strongly spined. Posterior metatarsi longer than the tarsi
40. MARPISSEAE 590 Marpissa ) [ Breda, Deloripa, Helvetia, Marpissa, Menemerus]
Breda milvina apicalis
Deloripa semialba
Helvetia sp. Helvetia santrema
"Marpissa" magna broadwayi
Menemerus semilimbatus (immigrant)
- Sternum not attenuated in front and widely truncate between the anterior coxae . . ................ . .click 26
II/26(24). Posterior legs with numerous strong spines. Thoracic groove very minute, hardly discernible .
..................... EUOPHRYDEAE 568 Euophrys) [Akela, Euophrys, Rhyphelia]
Akela ruricola
Euophrys frontalis (Europe, type) Euophrys mapuche (Chile)
Rhyphelia variegata
- Posterior legs with a few minute spines. Thoracic groove rather long, situated a little behind the eyes .Cephalothorax high,
almost as in Viciria. Inferior margin of the chelicerae oblique and not lobed, armed with a strongly pointed, triangular tooth
rather far from the base of the fang. [Tutelina, Tylogonus, ]
Tutelina similis (N America)
Tylogonus putumayo [Attention: listed in both Unidentati and Fissidentati]
Genera described recently
Theriella tenuistyla
Yepoella
crassistyli
or outer
posterior edge of chelicerae not developed, single tooth with several cones
on inner edge (Sitticinae)