80 



close together, the others wide apart. This is the most perfect example, and I regard 



it as typical of the species ; in the other specimens these appendages, which are very ' 



fragile, have been more or less broken off by the incidents of the position of the 



insects on loose leaves during transit. Close under the processes at the end of the 



abdomen, and reaching backwards as far as their extremities, is the white, broad, 



plump, posteriorly rounded, cottony ovisac : it then curves under the abdomen and 



completely covers the under-side of it, closely attached thereto at the edges, forming 



a capacious receptacle, quite smooth externally, but with tlie faintest indications of 



longitudinal striae (fig. 4) ; above this the abdomen remains horizontal. 



On the under-side the margin of the body all round is closely set with fine, 



projecting hairs ; terminal segment rounded ; anal ring 



not evident. 



Rostrum small, conical, black, seta rather long, 



brown. Legs (fig. 5) black, with fine long hairs ; femora 



with one specially long hair on the inner side ; tibiae two 



and a half times longer than the tarsi ; claw short ; no 



capitate digitules. 

 Length of body 5, breadth 4 mm. 



^''^^^^IJ / Young larva (fig. 6). A few found under two 



of the most mature ovisacs. Yellowish, oval. An- 

 tennte of six joints, the last long, obtuse-fusiform, 

 all with long hairs, two of them specially longer 

 on the last joint. The last segment of 

 the abdomen with a rounded median 

 emargination ; each of the small resulting 

 side lobes, sharplj' denticulate on the mar- 

 gin, bears three long setse (thus six in all), 

 each of them springing from a small 

 tubercle. 



In the larva with its six caudal 

 setae, and in the adult $ with 11 

 joints in the antennae, there are sug- 

 gestions of the genus Icerya, but 

 the form of the joints is different 

 and most of the characters, notably 

 the uniqite structure of the eyes, 

 are divergent, as also they are, va- 

 riously, from the other genera of MonopJdebidce, of which Guerinia 

 alone has similar subpyriform joints in the antenna?. The long, 

 circular, marginal processes are solid, and would be cylinders if they 

 were of uniform size throughout ; they are each moulded on and sup- 

 ported by a hair, and are quite analogous to the lamellae of the genus 

 Orthezia. 



On November 2nd, 18S9, I received several ? specimens of this 



Fig. 5. 



Fig. 6. 



