Rev. O. P. Cambridge on British Spiders. 3 



Abdomen rather narrow-oval, moderately convex above, 

 and not projecting over the base of the cephalothorax. 

 Spinners placed beneath rather than at the posterior extre- 

 mity ; arid immediately in front of the ordinary ones is a 

 transverse supernumerary spinning-organ, correlated with 

 which, in the female, there would doubtless be found calamistra 

 on the metatarsi of the fourth pair of legs. 



Amjpiliissa spinigera. (PI. I. fig. 1.) 

 Lethia spinigera, Cambr. Spiders of Dorset, p. 4G8. 



Lengtli of the adult male yj of an inch. 



The general colouring of this curious and minute spider is 

 yellow-brown, all the femora, especially of the legs of the 

 first pair, being strongly tinged with blackish brown. The 

 abdomen has the appearance in spirit, under a lens, of being 

 minutely spotted with dull reddish-yellow points ; and several 

 pale transverse angular lines are visible on the hinder part of 

 the upperside. The single longish black curved prominent 

 spine beneath the tibite of the third pair of legs is very cha- 

 racteristic ; but whether of generic or only specific value (and, 

 if the latter, then whether only sexual) is uncertain. 



When first described [1. c. supra) I included this spider 

 doubtfully in the genus Letlda, Menge. Subsequent exami- 

 nation, however, of the eyes, maxillce, and labium have con- 

 vinced me that a new genus is necessary for its reception. It 

 is, moreover, a much more Drassiform spider than the known 

 species of Lethia. 



The example above described was found in his study, and 

 kindly sent to me, by F. M. Campbell, Esq., of Hoddesdon, 

 in the early part of 1880. 



Fam. Agelenidse. 



Genus Hahnia, C. L. Koch. 



Hahnia helveola, Sim. 



Hahnia helveola, Sim. Arachn. de France, ii. p. 139 ; Cambridge, Spi- 

 ders of Dorset, p. 72. 



Several adult males were found among moss near Blox- 

 worth (with numerous females also), on the 9th of November 

 1881. Up to that time I had met with the females only, 

 this sex being more or less abundant at most other periods of 

 the year. 



