92 THE CANADIAN ENTOMOLOGIST. 



(6.) Ceroplastes scutigera,x\. sp. — 9 . Waxy scale about 4J/3 mm. long, 



3 broad, and 2 high ; pale ochreous, with a lateral patch of white secre- 

 tion, but no distinct lines ; wax not divided into plates ; area around 

 central nucleus not darkened. 9 denuded of wax, about 2 mm. long, 

 llattish, margin tuberculate, caudal horn short. Skin semitransparent, 

 except anal area, which is occupied by a very large and conspicuous red- 

 brown chitinous patch, which has perfectly-defined margins, and a 

 transverse diameter of about 900 /j. ; this patch shows a few scattered 

 perforations, and just above the anal plates are a large number of furrows 

 radiating from small perforations; anal plates with their long outer 

 inferior slope strongly convex; margin with very numerous short stout 

 spines ; antenna? very pale, only about 300 \i long. 7 -jointed, joints 

 measuring : (1.) 30, (2.) 45, (3.) 60, (4.) 75, (5.) 27, (6.) 24, (7.) s^- Femur 

 + trochanter, 177 ; tibia, 123 ; tarsus, 70 //.. 



Hab. — Ceres, Argentine Republic, June 30, 1897, on a shrub with 

 small entire oval-lanceolate leaves. This may be compared with : (a.) 

 C. minutus, which is closely allied, and has the same well-defined caudal 

 patch ; but it also has two chitinous patches on each side, containing 

 perforations, these being quite absent in scutigera. (b.) C. speciosus has 

 the caudal patch just as in scutigera, and lacks the lateral patches of 

 minutus ; it has spines only near the stigmata (for a distance of about 

 2 to /x on each side), whereas scutigera has them all around ; the antenna? 

 oispeciosusa.ro. very short, only about 165 /j. long; externally, speciosus is 

 easily distinguished from scutigera by its dark reddish wax, with a large 

 whitish dorsal patch, (c.) C. rotundus is smaller, with well-defined waxy 

 plates, (d.) C. purpureas is much smaller, (e.) C. Iheringi looks just 

 like scutigera externally, but it has not the caudal patch, (f.) C.formosus 

 has bright yellow wax. 



(7.) Ceroplastes novaesi mendozce, n. subsp. — Waxy scale about G]/ 2 

 mm. long, 6 broad, 5 high; pale amber, with a decided ferruginous tint ; 

 sides with two white lines more or less defined ; wax not divided into 

 plates, strongly nodulose. 



9 . Denuded of wax lively ferruginous, convex, about 5 mm. long, 



4 broad, 3^2 high; dorsum rounded, without prominences; caudal horn 

 short, directed upwards, from hind margin to tip of caudal horn is about 

 2 l / 2 mm. Skin not very strongly chitinized, except around anal area ; 

 diameter of mouth-parts about 135 /<. ; antennae about 180-195 \x long, 

 joints measuring : (1.) 24, (2.) ^3, (3-) 2 4, (4-) 3 6 > (5-) lS > ( 6 -) 2 °> (7-) 2 5 > 



