ACARINA FROM THE JUAN FERNANDEZ ISLANDS 



599 



obliquely upwards and forwards, and fusiform heads, one third the length of 

 the peduncle; head smooth. 



Hysterosoma. The anterior edge of the pteromorphae is concave, the 

 exterior angle projecting forwards as far as the foremost part of the central 



Figs. 92 — 100. Chaniobates marginedentata n. sp. 

 92. Left half of propodosoma. 93. Pseudostigma. 94. Margin of pteromorpha. 95. Tibia and 

 tarsus I. 96. Pseudostigmatic organ. 97. Femur II. 98. Area porosa mesonotica. 99. A. p. 



posterior. 100. A. p. adalaris. 



anterior margin, which is mere a line, no free collar-shaped margin embracing 

 the base of the propodosoma. The anterior edge of the pteromorpha continues 

 above the pseudostigma as far as to the base of the lamella where it dis- 

 appears. If we examine the specimens using a condensor for dark-field illumi- 

 nation we notice, however, .some other features which seem to show, that the 

 true line of fusion of the protero- and hysterosoma is not the superficial line. 

 As already pointed out the pseudostigmata are deeply embedded in the body, 



