1921.] 



149 



On the upper surface of leaves of a grass ( ? Festnca sp.) ; Thurn- 

 ham, Kent, 8.ix.l920. 



Differs from inermis in its much greater size, in the presence of a 



Fig. 2. — Eriococcus placidus. Adult 9 



antenna, X 135 ; 6, dermal pores, 



X 450 ; c, spines from frontal area, X 450 ; d, spines of anal lobes, X 450 ; 

 e, mid leg, X 130 : /, claw, X 450. 



few spines on the frontal area, in the character of the dermal pores, and 

 in the form and texture of the ovisac. 



Eriococcus pseiidinsignis, nov. (Fig. 3.) 



Adult female elongate, rather narrow ; anal lobes rather small, weakly 

 chitlnized. Antenna (c) 7-jointed ; the 4th usually longest, occasionally 

 equal to 3rd; 7th varying in length, either shorter or longer than the 6th. 

 Legs relatively large and well developed ; tibia and tarsus of approximately 

 equal length ; apical spine of tibia unusually long; claw (6) with a very minuto 

 (scarcely perceptible) denticle near its extremity ; ungual digitules long and 

 slender, minutely knobbed ; tarsal digitules long and dilated at extremity. 

 Caudal setae long and stout. Dermal spines confined to the marginal areas, 

 with the exception of a few which occur on the median area of the thorax ; 

 disposed in a single series (in groups of three) on the abdominal margin (d), 

 but tending to become irregular and diflfused on the margins of the thorax ; 

 irregularly crowded on the frontal area (a) ; those of the medio-thoracic 

 area (c) much smaller than those on the marginal area (/). Venter with 

 transverse series of slender setae, longer and irregularlj^ disposed on the frons_ 

 Derm with numerous tubular pores {g), the inner extremity of each pore with 

 a thickened rim ; no trilocular pores. 



Length '2 to L!'5 mm. ; breadth 1 mm. 



