Systematics and natural history of Barronopsis (Araneae: Agelenidae), with description of a new species Author Stocks, Ian Christopher text Zootaxa 2009 2270 1 38 journal article 10.5281/zenodo.190927 62c50144-8ec8-48c1-a07e-c2fb433d3533 1175-5326 190927 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