January, 1888. 



1G9 



distinct species. The greatest discrepancy in connection is the food- 

 plant, but among the Goccidce such variation of the food often happens 

 and is not of itself of specific importance. Mr. Bignell informs me 

 that there are no bushes of laurestinus near the place where the 

 ivy grows. 



It should be noted that the white eggs are laid under the maternal 

 coverlet. One ? I saw walking about after the development of the 

 cotton on the sides had begun. 



The genus and species (the latter the only one known) are new 

 to Britain. 



With the larval scales were a great many others, oval, very convex, 

 blackish in the middle, brown at the sides, each containing a pupa of 

 a Hymenopterous parasite, which had eaten up and taken the place of 

 the larva of the Lichtensia. 



evident 

 Fig. 3. 



Fig. 2. 



Fig. 1. 



Oethezia iNSiaNis, n. sp. 



(Fig. 1). Piccous-black. Head small, convex, exserted ; eyes and ocelli 

 . Antennae (Fig. 2) long, pale, with blackish spots or clouds, furnished with 



strongjOutstanding hairs; 

 composed of nine joints, 

 exclusive of a large an- 

 tcnniferous process simu- 

 lating a joint, 1st joint 

 stout, sub-clavate, end 

 rounded, 2nd cylindrical, 

 longest of all, the re- 

 mainder oblong, with ob- 

 tuse ends, but the last is 

 more pointed, all in 

 I > ' ' / y length subequal. Thorax 



^.m-^ I \ large, convex, prominent 



and rounded in front. 

 Fig. 4. the disc with a large, wide 



and deep depression ; scutellum with a large median hollow. Wings broad, ovate, 

 diaphanous, iridescent ; the furcate nerve scarcely darker. Halteres (Fig. 4) short, 

 fine, straight, of one joint, with one apical seta. Abdomen slender, tubular, the 

 external margin of the segments bluntly dentate ; from the last segment on its 

 lower side, closely posterior to two round tubercles, arise two white, projecting, 

 setaceous filaments, longer than the body ; being covered with cereous matter they 

 become cylindrical, but if denuded they appear as brown setae, and each splits into 

 two ; genitalia as shown in the Fig. 3, on the under-side of a long-cordate form. 

 Legs pale, with dark obscurations, and strong projecting black hairs j tibia; long ; 

 tarsi about one-fourth the length of tibiae, with one claw. 



Length of body, 1 mm. ; exp. of wings, 2 mm. 



