Attidce of North America. 83 



We have Athis muscivoriis Vinson from both Madagascar and Reunion, 



and find it to be identical with 31. melanognathus. 



S . Total length 8 mm. Width of abdomen 2.7 mm. 



Cephalothorax: length 3.3; width 3; height 1.3. 



Legs 7.8, 7.2, 5.9, 7.9; patella and tibia of the first, 3.G; patella and tibia of 

 the third, 2.2; patella and tibia of the fourth, 3; metatarsus and 

 tarsus of the fovirth, 2.3. 



9 . Total length 9.5 mm. Width of abdomen 3.6 mm. 



Cephalothorax: length 3.8; width 3; height 1.5. 



Legs 6.8, 6.5, 7.4, 8.5; patella and tibia of the first, 2.8; patella and tibia of 

 the third, 2.5; patella and tibia of the fourth, 3.3; metatarsus and tar- 

 sus of the fourth, 3. 



Cephalothorax low and flat, dilated behind dorsal eyes, with sides almost 

 vertical in front and rounded widely behind; cephaUc part scarcely in- 

 chned; thoracic part slanting very gradually until near the posterior 

 border. Ocular area occupying less than two-fifths of cephalothorax, 

 one-fourth wider than long, equally wide in front and behind. First 

 row of eyes straight; middle eyes sub-touching; lateral rather more 

 than one-half as large as middle eyes, and slightly separated fi'om 

 them; eyes of second row half way between lateral and dorsal eyes; 

 dorsal as large as lateral eyes, further from each other than from 

 lateral borders, forming a row narrower than the cephalothorax at 

 that place. Clypeus scarcely one-fifth as high as middle eyes, verti- 

 cal. Falces nearly as wide as the first tow of eyes, more than twice as 

 long as face, vertical, diverging a little at the extremities. Maxillae 

 parallel, long, narrow at base, rounded. Labium two-thirds as long as 

 maxillee, twice as long as wide, a Uttle shorter in $ than in s , rounded 

 at tip. Sternum deep set, nearly twice as long as wide, contracted in 

 front, roxmded behind. Anterior coxaj separated ( 5 ) by about the 

 width of the labium , {^) a little less. Legs of the first pair a little 

 stoutest. Femoral, tibial and metatarsal spines on the four paii's; 

 metatarsi of the fourth sjjined throughout their length. 



Coloration: Cephalothorax dark brown, with inifus hahs over anterior 

 eyes, a Avide white band low on each side, and a large patch of white 

 hairs on the central thoracic region. Clypeus dark in the middle, 

 with an oblique Une of white hair on each side, these lines beginning 

 below the anterior lateral eyes and extending over the clypeus and 

 along tlie inner edges of the dark brown falces. Abdomen dark ru- 

 fus with two wide longitudinal white bands composed of both short 

 and long white hairs, and two black chevrons at the apex. Palpus 

 with femur covered with white hairs, and tarsus black. Legs rufus 

 with dark rings and a good many white hairs. Mouthparts, sternum 

 and coxa? very dark, witli Avhite hairs. Venter gray with a wide 

 central nifus band. 

 Habitat: Cosmopolitan. Florida, Mexico, Guatemala, Brazil, Islands of 

 tlie Atlantic, England, France, Africa, Madagascar, AustraUa, Malay 

 Archipelago. 



