from each other by dark stripes than they are in A. nuttalli; 

 festoons bicolored; pimctations consisting of fev/7 scattered 

 large and numerous small; lateral grooves deep and long; eyes 

 flat. 



Females ; Large, from 7.0 mm. to 30.0 ram. long and from 6.0 

 ram. to 20.0 mm. wide, depending on degree of engorgement. Scutum 

 extensively pale ornamented and with central pale area broadly 

 rounded posteriorly; large punctations scattered over surface 

 including from five to twelve on posterior half; eyes flat. 



Although the scutal length of A. marmoreum group typically 

 equals its width or is slightly greater than the width, the Sudan 

 specimen illustrated (Figure lU) is exceptional in that its width 

 is considerably greater than length. 



_ 232 _ 



