ARANEAE 



423 



Fig. G65 Web of Linyphia margi- 

 nata ( Emerton ). 



1. LINYPHIA Latreille. Legs with long spines along their sides; 

 maxillae longer than wide; hinder pair of median eyes not near to- 

 gether; terminal segment of male pedipalp very large and complex: 

 about 22 American species. 



L. marginata Koch (Fig. 665). 

 Body 4 mm. long; cephalothorax long 

 and high in front * legs long and slen- 

 der; color light yellow with median 

 brown markings : web a dome 4 or 5 

 inches in diameter hung between plants 

 or rocks, in the middle of which the 

 spider lives; one of the commonest 

 spiders in shady woods. 



L. phrygiana Koch. Body 5 mm. 

 long; color light yellow with a median 

 black stripe which is serrated on both 

 margins on the abdomen: web a large 

 sheet, common in woods and near 

 houses. 



2. LEPHTHYPHANTES Menge. Maxillae longer than wide; legs with 

 long spines along their sides; hinder pair of median eyes near together; 

 sternum heart-shaped; penultimate joint of the legs with' a single spine: 

 4 American species. 



L. nebulosus (Sundevall) (Fig. 666). Length 4 

 mm.; color variable, usually light brownish-yellow with 

 gray markings: common in cellars and damp places about 

 houses, the web being flat. 



3. ERIGONE* Savigny and Audouin. Pedipalp 

 in the female without a claw ; body rather narrow : 

 very small spiders which live near the ground in grass, 

 dead leaves, etc., in small webs; about 30 American 

 species. 



E. longipalpis (Sundevall). Body 2 mm. long, dark 

 brown in color; cephalothorax smooth and shiny and 

 sometimes bright orange in color; small pointed teeth 

 along the sides of the thorax. 



E. autumnalis Emerton. Body 1.2 mm. long, of a light color with 

 a bright yellow head. 



4. CERATINELLA Emerton. Abdomen covered by a hard plate; 

 pedipalp of female without a claw: 21 American species. 



Fig. 666 



Lephthyphan- 



tes nebulosus 



(Comstock). 



* See "A Catalogue of the Erigonae of North America," etc., by C. R. Crosby, 

 Proc. Acad. Nat. Sci., Phila., 1905. 



