148 THE CANADIAN ENTOMOLOGIST. 



the front, and becoming shallower and narrower posteriorly in the region 

 of the spermathecal openings. The narrowing of the furrows is produced 

 principally by the bulging inward of the side ridges of the epigynum, the 

 posterior face of the tubercle so produced usually being close to and 

 parallel, or nearly parallel, with the corresponding transverse arm of 

 the guide. Sometimes the lateral plates of the guide extend over the 

 narrowed channels behind in such a way as nearly completely to roof 

 them over. In most cases the tubercles are conspicuously more elevated 

 than the depressed posterior ends of the lateral ridges which embrace the 

 ends of the arms of the guide. The form of epigynum typical of the 

 genus is well presented in L. Jielhio {nidicola, Em., etc.), riparia and 

 related species. From this form the epigyna of other species depart in 

 varying degrees. 



The epigyna in the genus Friata., as also in the American species 

 (/loierea, evagata) of Tricca ( Anocosa), present no distinct guide, 

 although they are sometimes weakly furrowed. In no case is any 

 transverse restraining ridge developed. The spermatheca practically 

 alvvays open free each upon the inferior or the inner face of one of two 

 posteriorly-directed tubercles, between which is an open space or 

 excavation. The tubercles may be separated by a, rather narrow space, 

 as in insular is and agilis { = waconda?ia, recently described by Mr. 

 Scheffer), may be more widely divergent, as m priafria, CI. (Em.), or may 

 be scarcely evident, leaving the posterior margin of the epigynum nearly 

 straight, as in Montana. The Friata type of epigynum is very similar to 

 that of some Agalenidce. The species described by Mr. Tullgreu, from 

 Florida, as Fardosa bilobata, which has an epigynum of this kind, is, 

 there seems scarcely room for doubt, a Firata (probably insularis, Em.).* 



The bulb of the male palpus consists of an upper lobe folded more 

 or less transversely upon a larger and more protruding basal division, in 

 which is contained all but the apical portion of the coiled semiferous tube. 

 The slender terminal portion of the tube passes forward into and ojjcns 

 near the end of the intromittent organ, the embolus or style. The embolus 

 arises toward the upper and inner side, near the base of the anterior lobe, 

 and in rest lies more or less transversely across the bulb, either in a fold 

 of the apical lobe itself (as usual in Fardosa and Friata) or upon a special 

 fold developed along the front margin of the basal lobe (Lycosa). This 

 special fold, which may be termed the lectus, in Lycosa is produced at the 

 end into a lobe of varying size, which normally bends forward at the 

 margin of the alveolus, and which supports during quiescence the 

 terminal portion of the embolus. This apical lobe or auricle may be long, 

 and may extend forward along the side of the conductor emboli, to be 

 n'ientioned later, even to the front margin of the alveolus, as it does in 

 L. ocreata, bilineata, etc. 



*Vid. A. Tullgreu, "Spiders collected in Florida by Dr. Einar Lt^unberg," Vet. 

 Ahad., Handl., B. 27, Afd., l\.. No. i (1902), p. 22, fig. 12. 



(To be continiieJ.) 



Mailed May 7th, 1904. 



