ISCHNOSCELIS.— AKGYEIPA. 343 



Fam, CETONIID^l. 



Subfam. ISCHNOSTOMINM 



ISCHNOSCELIS. 



Ischnoscelis, Burmeister, Handb. der Ent. iii. p. 179 (1842) ; Lacordaire, Gen. Col. iii. p. 489. 



This genus, interesting as displaying an affinity with the Goliathinse group of Africa 

 and Asia, so far at least as the cornuted head of the males is concerned, seems peculiar 

 to Mexico. Two species have been described, widely dissimilar in size, colour, length, 

 and clothing of the male fore legs, and to a lesser extent in the armature of the head, 

 but closely agreeing in all essential points of structure. 



1. Ischnoscelis hopfneri. 



Goliathus hoepfneri, Gory & Percheron, Monogr. Cetoin. p. 154, t. 26. fig. 2 \ 



Ischnoscelis hopfneri, Burm. Handb. der Ent. iii. p. 182 2 ; Westw. Linnsea Entom. x. p. 326, t. 2. 



Hab. Mexico x 2 (Sturm, in coll. Salle). 



There are two examples only, a male and a female, of this rare species in the Salle 

 collection. 



2. Ischnoscelis dohrni. 



Ischnoscelis dohrnii, Westw. Linnsea Ent. x. p. 326, t. 2 x . 

 Hab. Mexico \ Sonora (in coll. Bates). 



Subfam. QYMNETINjE. 



AEGYEIPA. 



Argyripa, Thomson, Typi Cetonid. p. 11 (1878). 

 Allorhina, pars, Salle, Bates (olim), Westwood. 



Three species of this beautiful genus have been described, remarkable for the curious 

 armature of the head and thorax in the males. The group appears to be restricted to 

 Central America and the neighbouring North-western parts of South America. 



1. Argyripa lansbergei, 



Allorhina lansbergei, Salle, Ann. Soc. Ent. Fr. 1857, p. 617, t. 13. no. iii. figg. 1, 1 a-c. 1 

 Allorhina hypoglauca, Westw. Trans. Ent. Soc. Lond. 1874, p. 475, t. 7. fig. 6 \ 

 Argyripa lansbergei, Thomson, Typi Cetonid. p. 11. 



Hab. Nicaragua 2 . — Colombia 1 . 



This species is not contained in our collections and does not appear to have been 



