Classification of the cribellate spiders and some allied families, with notes on the evolution of the suborder Araneomorpha Author Pekka T. Lehtinen text Annales Zoologici Fennici 1967 4 199 468 journal article Lehtinen1967CribellatePenestominae Penestomus Simon 1902, Ann. Soc. Ent. France 71, Bull., CCXLI: P. planus Sim. 1902 , ibid . from South Africa (? Paris). Described in Eresidae , and selected by Simon(1903 a) as the type genus for the subfamily Penestominae . /

-	Penestomus	Wajane
Figure	482, 469	470, 471
Size	medium	medium
Cribellum - colulus	cr: bipartite, long oval	co: transersal narrow plate
Anterior spinnerets	strongly conical	slender, slightly conical
Posterior spinnerets	<AS, cylindrical	~ AS, slender cylindrical
Median spinnerets	small triangular	small triangular
Abdominal pattern #m	unknown	2 central white patches
Abdominal pattern #f	none	unknown
Shape of carapace	very flat subrectangular	very flat subrectangular
Clypeal triangle	gradually pointed	obtuse
Fovea	oval shallow depression	indistinct
Size of AM	subequal to PM	subequal to PM
Shape of MOT	strongly trapezoidal	strongly trapezoidal
Shape of LOT	very strongly trapezoidal	strongly trapezoidal
Cheliceral keel	rounded triangular with 3 teeth	rounded triangular with 4 teeth
Anterior part of sternum	gradually narrowed	gradually narrowed
Tib. & met. v. sp.	I-II: 0 + 2, III-IV: 1 - 3 + 2	I-IV: numerous irregular + 3
Tarsal spines	none	I-IV: 2 - 3 rather long apical
Tarsal scopulae	none	none
Shape of cymbium	#m unknown	circular with basodorsal carina
Tibial apophysis	&nbsp;	long branched
Embolus	&nbsp;	semicircular, distally modified
Conductor	&nbsp;	semicircular fold
Median apophysis	&nbsp;	very long and protruding, geniculate
Shape of tegulum	&nbsp;	very long and protruding, geniculate
Epigynal plate	caudally projected trapezium	#f unknown
Epigynal foveae	paired longitudinal narrow	&nbsp;
Distribution	S. Ethiopian	S. Ethiopian

Figs . 445-453. - 445: Adonea splendens ♂, 446: Gandanameno spenceri ♀ (holotype of Eresus depressus ), 447: Dresserus schreineri , leg, 448: Seothyra schreineri , chelicera, 449: Adonea splendens , chelicera, 450: Magunia tentoriicola , spinnerets and anal tubercle, 451: Seothyra schreineri , spinnerets in dorsal view, 452: Penestomus planus , carapace, 453: Dresserus schreineri , spinnerets and anal tubercle. - Orig.