Scotinotylus vernalis (Emerton 1882)

Paquin, Pierre & Dupérré, Nadine, 2006, The spiders of Québec: update, additions and corrections, Zootaxa 1133, pp. 1-37 : 16-17

Scotinotylus vernalis (Emerton 1882)

( Figs 33–36 )

Material examined.— Canada: Québec: Gatineau; Aylmer, Musée Canadien de la Nature back yard [45°23’N, 75°50’W] 29.vii.–04.viii.1999, pitfall in poplar forest, 1Ψ, N. Dupérré ( CPAD).

Diagnosis.— Males are distinguished by the tightly­coiled tailpiece (TP) ( Fig. 33 ), and the palpal tibia with two small pointed palpal tibial apophyses (PTA) ( Fig. 35 ). The female epigynum is characterised by the presence of a large tongue­like process (arrow), and widely separated spermathecae (S) ( Fig. 36 ).

Distribution.— From Saskatchewan and Québec (this record), south to Nebraska and Connecticut ( Buckle et al. 2001).

Remark.— This is a rarely collected species and nothing is known on its habitat.

Figures

FIGURES 33 – 40. 33 – 36. Scotinotylus vernalis. 33, palpus of male, ventral view; 34, cephalothorax of male, lateral view; 35, palpal tibia of male, dorsal view; 36, epigynum, ventral view. 37 – 40. Thyreosthenius parasiticus. 37, palpus of male, ventral view; 38, cephalothorax of male, lateral view; 39, palpal tibia of male, dorsal view; 40, epigynum, ventral view.