Manchester Memoirs, Vol. xlii. (1898;, No. 11. 33 



the sides of the segments are finely transversely aciculated ; 

 the apex has an oblique slope and is widely hollowed 

 in the middle. Mesopleura^ shining, minutely punctured, 

 thickly covered with short, silvery pubescence ; the oblique 

 furrow shallow, densely covered with longish silvery hair ; 

 the metapleurae shining, almost glabrous, the basal portion 

 hollowed ; there is an oblique, not very clearly defined, 

 keel over the hinder coxai, above which is a line of fine 

 transverse striations. Legs thickly covered with white 

 pubescence ; the apices of the four anterior coxae and of 

 their trochanters, the apex of the fore femora, and the four 

 front tibiae and tarsi, yellow ; the tibiae broadly lined with 

 black behind ; the hinder tibiae black, broadly yellow at 

 the base ; their spines longish, pale ; their calcaria large, 

 the inner one being, at the ^sides and base, finely rugose ; 

 the abdomen is marked with yellow. 



C. ardens also differs from it in the base of the median 

 segment being finely longitudinally striated, and it has 

 " a medial vertically impressed line from the anterior 

 ocellus to between the antennae," while the legs and 

 antennae are devoid of yellow. 



Head shining, impunctate ; except on the lower part 

 of the front, where it is obscurely punctured ; the clypeus 

 hidden by dense silvery pubescence ; the vertex with a dense 

 microscopic down ; the space between the eyes over the 

 antennae bare, glabrous, except at the sides, where there is 

 a narrow edging of silvery pubescence ; the mandibles 

 yellow, their apices rufo-piceous ; palpi yellow. Prothorax 

 shining, neither punctured nor striated ; the apical part 

 thickly covered with minute pubescence ; the mesonotum 

 with shallow minute punctures ; sparsely covered with a 

 microscopic down ; the scutellum, if anything, more 

 strongly punctured ; a broad, irregular, yellow, transverse 

 mark at its base ; the post-scutellum broad at base, 

 narrowed towards the apex ; the apices of all the tarsi 



