ORTHEZIINJE. 229 



very closely, but the female differs in possessing only 

 four joints to the antennae.* 



SYNOPSIS OF GENERA. 



A. Antennae of the adult females of eight or nine 



joints; legs normal; dorsum wholly or partly 

 covered with cereous lamellae. 

 Antennae of the larvae of six joints. 



(i) .... ORTHEZIA. 



B. Antennae of the adult female of six joints ; tibio- 



tarsal joints united. 

 Antennas of the larva of four joints. 



(n) . . . NEWSTEADIA. 



GENUS ORTHEZIA (Bosc). 



Adult females partly or wholly covered with cereous 

 plates or lamellae ; antennae of eight or nine joints, 

 usually eight ; legs normal ; spiracles (in the British 

 species) present on the abdomen as well as on the 

 ventral surface of the thoracic area. 



Larva with six- jointed antennae. 



SYNOPSIS OF SPECIES. 



A. Dorsal surface of females wholly covered by 



lamellae. 



a. Thoracic segments each with a median wedge- 



shaped lamella. Marsupium short. Dorsal 

 surface flat. 



(l) ... CATAPHRACTA (2). 



b. Thoracic segments without median wedge-shaped 



lamellae. Marsupium long. Dorsal surface not 

 flat, 



(n) . . . URTIC^: (1). 



B. Dorsal surface of female partly naked. 



(in) . . . INSIGNIS (3). 



* Sulc gives three joints to the antennae, but he discounts the first joint 

 and refers to it as the " frontal process." 



