MargarodiiKT, 425 



Genus KUWANIA, Coekerell. 

 Sasakta, Kuwana, Pr. Cal. Ac. Sci. (3), Vol. III. p. 47 (1902). 



The name Sasakia being preoccupied, Coekerell has proposed Kuwania 

 as a new name for the genus. 



Kuwana's diagnosis of Sasakia is as follows : ' Adult female with nine- 

 segmented antenna^ ; body distinctly segmented, mouth-parts wanting in the 

 adult stage ; no digitules on claw nor on tarsus ; anal tube absent ; enclosed in 

 cottony secretion. Larva with six-segmented antennae, anal tube wanting.' 



With respect to this description I would point out that examination of 

 actual specimens of K. quercus (the type species of the genus) show that the 

 antennae are in reality ten-jointed. The author has apparently not taken count 

 of the large and prominent basal joint, regarding it, presumably, as no true 

 joint, but as a frontal tubercle supporting the antennae. I believe this inter- 

 pretation to be incorrect. In a properly stained preparation of the insect it can 

 be seen that the process in question, though weakly chitinized, has clearly 

 defined boundaries, and is undoubtedly homologous with the more rigid basal 

 joint of the antenna in other Coccidce. The mouth-parts in K. quercus are 

 entirely wanting, but in zeylaiiica, which I am now assigning to this genus, the 

 rostral skeleton is present. The apparatus is, however, functionless, owing to 

 the absence of any rostral filaments. It is possible that intermediate degrees of 

 development of the mouth-parts may occur in other species, as is found to 

 be the case in the allied genus Xylococcus. Kuwana makes the absence of 

 digitules a character of his genus ; but the absence or presence of these 

 organs can hardly be regarded as of generic importance. I can, moreover, 

 detect on all the claws of his quercus a pair of fine simple setas occupying the 

 usual position of ungual digitules. Though there may be no functional anal 

 tube, there is a distinct bifurcated chitinous plate occupying the usual position of 

 the anal orifice. 



The young larva of zeylanica has the unusual number of seven joints to the 

 antenna;. 



Besides the type species— ^z^t'nz/j (from Japan), the genus at present 

 contains only one other species — zeylanica (from Ceylon). The insect described 

 under the name of Kuwania briianyiica (from England) has now been proved 

 to be identical with Steingelia gorodetskia (from Russia). 



KUWANIA ZEYLANICA, Green. 



(Plate CLXXV.) 



Monophlebus zeylanieiis. Green, Ind. Mus. Notes, Vol. IV. p. 6 (1896). 



Adult female {fig. i) bright reddish orange ; eyes black. Body {figs. 2, 3) 

 elongate, bluntly pointed in front, rounded behind ; moderately tumescent ; 

 distinctly segmented. Naked or slightly powdered with whitish meal ; 



3K 



