Barronopsis
Creators: name: Stocks, Ian Christopher
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Agelenidae
Barronopsis

description: Key to Barronopsis species
1 Males ............................................................................................................................................................................. 2
- Females ......................................................................................................................................................................... 7
2 Number of loose embolic coils <2 (Figs. 32–33, 35–39); tight embolic coils with smooth edges, appearing as a complete cylinder; sperm duct with a 180° bend visible in retrolateral view through the tegulum (Fig. 40); pale sternal stripe present; CW <1.08 (Tab. 5); webs on ground or low on herbs and grasses....................................................... 3
- Number of loose embolic coils>2 (Figs. 20–21, 23, 43); tight embolic coils with free edges, apparently stacked bowls; sperm duct undulating (Fig. 25); no pale sternal stripe (vague pale spot in jeffersi); CW> 1.08 (Tab. 5); aerial webs on trees, bushes, houses, buildings or handrails .................................................................................................. 4
3 Embolus tapered to tip, lamellae folded over distally (Figs. 33–35, 37–39), appearing pleated, no kink or membranous flare before tip. Central South Carolina, Georgia, North and Central Florida ...................................... stephaniae
- Lamellae folded into tube distally; embolus tip with slight kink, slightly swollen and bifid (best viewed at 400´; Figs. 45–46, 49–50). Swelling seen as distal median notch bordered by one free lateral extension, one attached lateral extension, giving a “pipe bowl” appearance. Very small “flare” of membrane before a slight apical bend in embolus. South Florida, extreme northeast coastal Florida, southeast coastal Georgia, Cuba ......................... barrowsi
4 Embolus distinctly thread-like distally, lamellae continuous to tip ..................................................................... arturoi
- Embolus not thread-like distally, either with subdistally truncated membranous section, or tapered lamellae with pleated appearance (Figs. 20–21, 23, 43–44, 47 –48).................................................................................................... 5
5 Embolus not abruptly truncated, with lower and upper lamellae merged and twisted distally, forming a trough-like tube narrowing to a blunt tip (Figs. 43–44). Eembolus tip with smoothly curved 90° elbow subapically .... floridensis
- Embolus abruptly truncated distally, with upper lamella and intervening membrane lobe-like. Lower lamella and membranes supporting embolus tip, through which the sperm duct is visible, no sub-apical elbow ........................... 6
6 Embolus tip bifid, appearing “fork-like” (Fig. 47) .............................................................................................. jeffersi
- Embolus tip not bifid (at most with very small “bump”, Fig. 48) ....................................................................... texana
7 Atrial guides broad lobed, either angulate shouldered or slightly rounded (Figs.60, 62–65). Prominent pale sternal stripe (Fig. 10). Small spiders (Tab. 5), DSL usually <3 mm. Webs on or in contact with ground, often in pine needles, palm straw or grass hillocks ................................................................................................................................. 8
- Atrial guides tooth-like (Figs. 51, 57–58), may be sharp and close together, or blunt and further spaced, but never as above. No pale sternal stripe, but may be a small, irregular pale spot. Larger spiders (Tab. 5), DSL usually> 3 mm. Webs placed above ground, on trees, bushes, buildings ............................................................................................... 9
8 Central and southern Florida, extreme south coastal Georgia, north coastal Florida, Cuba; associated with males of B. barrowsi ........................................................................................................................................................ barrowsi
- South Carolina, Georgia, northern and central Florida; associated with males of B. stephaniae .................. stephaniae
9 Spermathecae banana or crescent shaped (Fig. 50); AH> 0.38 (Tab. 4). Pinar del Río, Cuba ........................... arturoi
- Spermathecae spherical or ovoid (Figs. 54–58); AH <0.38. North America, Bahamas ............................................ 10
10 Frequently with conspicuous dark-ringed “ear-patch” area on posterior carapace. Maryland, extreme south Georgia,
north to central Florida, and Cuba; associated with males of jeffersi .................................................................. jeffersi - No conspicuous “ear patch” on posterior carapace. Distribution Bahamas, central and south Florida, central and south Texas, east to Atlantic coast .............................................................................................................................. 11
11 AH usually <0.35 (Tab. 4). Central and south Texas, east to Atlantic coast, eastern Tennessee, North Carolina, South Carolina, Georgia, extreme north Florida. Webs often found on or in buildings; associated with males of texana ........................................................................................................................................................................ texana
- AH usually> 0.35 (Tab. 4). South Bimini Island, Bahamas; central and south Florida. Webs associated with males of floridensis ....................................................................................................................................................... floridensis
description: Published as part of Stocks, Ian Christopher, 2009, Systematics and natural history of Barronopsis (Araneae: Agelenidae), with description of a new species, pp. 1-38 in Zootaxa 2270 on pages 16-17, DOI: 10.5281/zenodo.190927