Superfamily Argiopoidea 



applied to a twig. The egg-sac proper is about one fourth inch 

 in length; but this is covered by a somewhat larger sheet, which 

 by its gray colour serves to conceal it. This covering layer is 

 well worth study with a microscope. It consists of a sheet 

 of dirty white silk, upon which are transverse parallel lines near 

 together of crochet-work in black silk (Fig. 248). 



This species is widely distributed in the eastern United States 

 and Prof. V. L. Kellogg reports the presence of it or of a closely 

 allied undescribed species in California. 



Family DEINOPIDiE (Dei-nop'i-dae^ 



The Ogre-faced Spiders 



The enormous size of one pair of eyes, the posterior median, 

 gives the face of these spiders a very unusual appearance (Fig. 

 249). It was probably this characteristic that suggested the name 

 of the typical genus, Deinopis; from the Greek deinos, terrible, 

 and opsis, appearance. And for the same reason I suggest for 

 the familv the common name used above. The family is repre- 

 sented in our fauna by a single genus. 



Genus DEINOPIS (Dein'o-pis) 



The body is slender and the legs very long. The eyes are all 

 small except the posterior median, which are enormously devel- 

 oped and project forward (Fig. 249). The cribellum is trans- 

 versely elongate, and not divided by a septum. And the cala- 

 mistrum occupies less than half of the length 

 of the metatarsus. The endites are divergent 

 and curved on the outside. The name of 

 this genus is often written Dinopis; but 

 the form adopted here is the original one. 



Deinopis spinosus (D. spi-no'sus). — 

 This is a slender spider, measuring two 

 thirds of an inch in length and less than 



one eighth 



inch in width. The legs are 



long, the first two pairs being more than 

 twice as long as the body. The abdomen 

 is greenish yellow, with a lancet-shaped, 



Fig. 249. DEIXOPIS a. face 



b, lateral \ iew of cophalo- 



thorax (aftei Marx) 



273 



