Gymnelis Undulala. 415 



albas, ad apicera nigrae. Palpi maxillares articulis primis albis, 

 ultimo brunneo, labiates tribus * primis albis, tertio albide hirsute 

 Thorax punctis impressus, lateribus pilis albis aspersis. Abdomen 

 metallice nitidum, lateribus subtus pilis albis aspersis. Pedes 

 metallici albide hirsuti. 



Long. corp. JL. 

 Habitat, in Barbaria. 

 In Must. nost. 



In the markings of the elytra this insect approaches the C. chi- 

 loleuca, Dej. very closely. Independently however of that insect 

 being a Russian species, the present exhibits a marked distinction 

 in the colour of the antenna; and tibiw, which I have particularized 

 in the specifick description. I have observed the insect only in 

 the collection before alluded to, which was formed by Captain 

 Lyon in his travels into Barbary : and I have named it in honour 

 of that intrepid officer, whose spirit of enterprize has led him into 

 the most unpropitious quarters of the globe, from the burning 

 sands of Africa to the frozen shores of the Arctick regions. 

 Trib. Lamellicornes. Lat. 

 Stirps. Petaloceka Thalerophaga. Mac L. 

 Fam. Cetoniad^e. Mac L. 

 Genus. Gymnetis. Mac L. 

 Undtjlata. G. atra, thorace brunneo, vitta marginuli irregu- 

 laris mediaque recta, albis ; elytris brunneis albo-marginatis, 

 quatuor fasciis mediis undulatis subinterruptis albis. 

 Tab. 15. f. 4. 

 Clypeus ater, maculis quatuor albis. Antenna, pedesque nigri. 

 Thorax vitta marginali autice appendiculata, appendice recurvo 

 clavato. Scapulw et elytrorum macula humeralis albae. Abdo- 

 men nigrum, segmentis ad latera albo-marginatis. Anus maculis 

 tribus albis, media minima. 



Long. corp. |-|. 

 Habitat in Brazilia. 

 In Mus. nost. 



* The only specimen I have seen of this insect has lost the last joint of the 

 labial palpi. 



