ABANEAE 



429 



Fig. 675 



Tlbellus 



ohlongus 



(Emerton). 



E. latithorax Keys. Length 3 mm.; color gray and white, with 

 black spots ; body very wide ; head narrow in front. 



6. TlBELLUS Simon. Body long and slender, the legs 

 projecting ahead and behind and not sideways; both 

 rows of eyes curved: 2 American species. 



T. oblongus (Walckenaer) {T. duttonii Emerton) (Fig. 

 675). Length 12 mm.; width 2 mm.; color gray or yellow, 

 with dark longitudinal bands and a pair of black spots 

 on the hinder part of the abdomen: very common on 

 bushes and grass. 



Family 11. CLUBIONIDAE. 



Light-colored spiders usually without color markings; 

 upper row of eyes longer and the eyes usually larger 

 than the under row; mandibles of females swollen at 

 the base : the animals live in flat tubular webs in rolled-up 

 leaves or on plants and under bark and stones; about 95 

 American species. 



Key to the genera of Cluhionidae here described: 



ttj Posterior spinnerets with a very distinct, conical terminal segment. 

 6i Labium much longer than wide and extending beyond the middle of the 



maxillae 1. Clubiona 



62 Labium about as long as wide or less so, and not extending beyond the 



middle of the maxillae ; sternum extending between the hind legs. 



2. PlIRUROLITHUS 



Oa Posterior spinnerets with a very short and fre- 

 quently indistinct terminal segment. 

 &i Cervical groove present. 



Ci Legs spiny 3. Castianeira 



c. Legs not spiny 5. Trachelas 



62 Cervical groove absent 4. Micaria 



1. Clubiona Latreille. Hinder legs longer 

 than forward; spinnerets distinctly segmented; 

 labium longer than wide; mandible long; eyes very 

 near the front margin of head : about 20 American 

 species. 



C. obeea Hentz {C. crassipalpis Keyserling) 



(Fig. 67G). Length 6 mm.; pale in color, without 



markings; mandibles and ends of male pedipalps 



dark; eyes in each row equidistant, the hinder 



row being the longer: common. 



2. Phrurolithus Koch. Each terminal claw with G to 10 spatu- 



late hairs; sternum broad and extending between the liiiid legs: 8 



American species. 



Fig. G7G—Cluhiona 

 ohesa (Emerton). 



