ARANEAE 



431 



Fig. 678 — Agelena 

 ncevia (Emertoii) 



A. naevia Walck. Grass spider (Fij;-. 678). Body IS mm. long or 

 less, and yellowish brown, or black in color, with gray or dark markings 

 and spots on the abdomen and broad longitudinal stripes on the eephalo- 

 ihorax, and covered with fine hairs: the very 

 common spider which makes flat webs in the 

 grass which are conspicuous when covered by 

 dew; also in houses. 



2. Coras Simon. Rows of eyes not curved 

 or but slightly so; anterior median eyes much 

 larger than the lateral: 1 species. 



C. medicinalis (Hentz) (Fig. 679). Body 

 12 mm. long, light yellowish-brown in color and 

 covered with gray hairs; abdomen large and 

 oval and marked with gray 

 spots of irregular shape: in 

 woods among rocks and under 

 loose bark, the web is not flat, 

 but is usually curved in sev- 

 eral places. 



3. Tegenaria Latreille. Eyes all of the same 

 size, both rows curved, the forward row but slightly; 

 legs long and slender: about 7 American species. 



T. derhami (Scopoli). Body 10 mm. long, pale 

 in color, with gray stripes and spots; first and fourth 

 pairs of legs the longest: in cellars, barns, etc.; the 

 web often forms a thick shelf in the 

 corner; very common, having been im- 

 ported from Europe, it and Theridion 

 tepidariorum making most of the corner 

 webs in cellars. 

 4. Hahnia Koch. Spinnerets extend across the abdo- 

 men in a straight or curved line; anterior middle eyes 

 smaller than the lateral : about 6 American species. 



H. agilis Keyserling {H. himaculata Emerton) (Fig. 

 680). Length 3 mm.; cephalothorax bright orange brown 

 in color and the legs and abdomen pale yellowish with gray markings: 

 common under stones and leaves or among grass and moss. 



Fig. 679 — Coras 

 medicinalis 

 (Emerton). 



Fig. 680 



Hahnia agilis, 



ventral aspect 



(Emerton). 



Family 13. PISAURIDAE. 



Eyes in 3 rows; cocoon carried in the mandibles of the female; 

 cephalothorax broad and flat : ground spiders of large size similar to the 

 Lycosidae; about 18 American species. 



