328 Transactions. — Zoology. 



red ; feet and antennae black ; eyes dark-red ; wings broad, 

 rather solid, very dark-brown or nearly black, with a red 

 nervure and two narrow longitudinal hyaline stripes, one of 

 which is between the branches of the nervure. Antennae of 

 ten subequal joints : the first is tubercular, the next eight are 

 long and compressed in the middle, the tenth is fusiform ; all 

 but the first bear many very long hairs, which from the second 

 to the ninth are arranged in rings on the thicker portions of 

 the joints. Feet slender, with many hairs; claw with a single 

 digitule. Eyes prominent, semiglobular, placed on a short 

 cylindrical tubercle ; very distinctly facetted ; there is a rather 

 large tubercular ocellus close to each eye. The abdomen 

 bears on each side five slender hairy tassels ; the anterior 

 ones are moderate, the posterior ones rather long, extending a 

 little beyond the extremity. The haltere is broadly fusiform 

 and large, and bears at the end eight curved sette, the ends of 

 which are knobbed. 



Hab. In Japan, on Piniis, sp., Yokohama; in China, on 

 Ficus, sp., and on Gardenia florid a, Hongkong. My specimens 

 were sent by Mr. Koebele. 



I have decided, after much consideration, to attach this 

 insect to Westwood's species. I have not seen the actual 

 paper by that author in his " x\rcana Entomologica," but 

 Signoret copied the descriptions in his Essai, and from these 

 it appears that Westwood never knew anything but the males 

 of the species which he established. This renders it ex- 

 tremely difficult to identify insects, because, as I observed in 

 1895 when treating of Icerya roscB, var. atistralis, the males of 

 any given genus differ only very slightly from each other. 

 "Westwood established seven species of Monophlchus on the 

 males alone, and seems to have given only very brief descrip- 

 tions of them ; from these it appears that he took as his prin- 

 cipal characters the colour, the size, and the abdominal 

 tassels. In all the seven, with the exception of one, the 

 wings are black — in M. raddoni they are partly red, and I 

 think we may here discard that species. Another, M. illigeri, 

 a very small species from Tasmania, may also be put aside, 

 and we have left the following, as described by Westwood : — 



M. atripennis, Klug (Java) : Thorax black, abdomen red, 

 tassels, five (?) on each side. 



M. burmeisteri, Westw. (Java?): Thorax black and red, 

 abdomen red, tassels five on each side. 



M. fabricii, Westw. (Sumatra) : Thorax black and red, 

 abdomen black, tassels three on each side. 



M. leachii, Westw. (Malabar) : Thorax black, abdomen 

 red, tassels five on each side. 



M. samiderdi, Westw. (Southern India) : Thorax black 

 and red, abdomen red, tassels four on each side. 



