176 CEKAMBYCIDJE. 



Genus ROSALIA. 



Rosalia, Serville, Ann. Soc. Ent. Fr. ii, p. 561 (1833) ; Lacord. Gen. 



Coleopt. ix, p. 33 (1869) ; Lameere, Ann. Soc. Ent. Belg. xxxi 



p. 171 (1887). 

 Eurybatus, Thorns. Essai Classif. Ceramb. p. 250 (1860) ; Lacord. 



Gen. Coleopt. ix, p. 32 (1869). 



Type, R. alpina, Linn., a Palaearctic species. 



Range. Palaearctic and Indo-Malayan Begions, and North- West 

 North America. 



Head with the fore-part and mandibles sloped forward ; the 

 front sub-vertical, raised between the antennae so as to form a 

 transverse ridge concave in the middle ; eyes moderate, finely 

 facetted and very deeply einarginate ; genae long and rather 

 prominent ; palpi subequal. Antennae much longer than the body 

 in the c? , a little longer or shorter than the body in the $ ; first 

 joint clavately thickened towards apex ; third equal to or longer 

 than the fourth ; fifth to tenth subequal or successively and very 

 slightly shorter in length ; third to fifth thickened and spined at 

 the apex, and sometimes, with one or more of the succeeding 

 joints, furnished with a dense tuft of hairs at the apex. Prothorax 

 transverse, rounded or protuberant at the sides. Elytra long, 

 rounded at the apex. Legs moderately long ; femora more or less 

 thickened at, or below, the middle, the hind pair not reaching to 

 the apex of the elytra ; first joint of hind tarsus as long as the next 

 two joints united. Front coxae strongly angulated outwards; 

 acetabula widely open posteriorly ; intercoxal process raised and 

 rather narrow in the middle, shortly deflexed posteriorly. Meso- 

 sternum canaliculate posteriorly; epimera large, extending broadly 

 to the coxae. Episterna of metathorax broad, narrowed and pointed 

 posteriorly. 



The body is densely covered with pubescence, with a charac- 

 teristic colour in each of the two sections of the genus. One of 

 these sections corresponds to the genus Rosalia of Serville and 

 Lacordaire, the other to the genus Eurybatus ot Thomson. 



1. Pubescence pale blue or bluish-grey with black bands and spots ; 

 antennae with strong tufts of hairs at apices of joints third to 

 sixth or eighth in both sexes ; mandibles of fully -developed 

 males ivith dorsal tooth near base. (Subgenus EOSALIA.) 



191. Rosalia lameerei, Brongn. Bull. Soc. Ent. Fr. 1890, p. cxxi : 

 Le Nat. xii, p. 153, fig.V & $ (1890) ; Nouv. Archiv. du Museum 

 (3) iii, p. 243, pi. 10, figs. 7 & 8 (1892). 



Closely covered above with very short pale lavender-blue pubes- 

 cence varied with spots and bands of black pubescence. Head 



