fO Mr.Kirby on a pair of horned mandibles of an Insect. 



albi, parce aurantiaco-variegati. Remiges nigrescehtes, interne 

 ad apicem albo-marginata;, secundariae parce ferrugineo-sparsae, 

 subtus albae. Redrices ciiieraceo-nigrae, interne, mediis exceptis, 

 albo-marginatae, subtus albae. Pedes flavi, unguibus nigris. Lon- 

 gitude corporis^ 9 ^ uuc. ; alee a carpo ad remigem 2"^™, 6 -^^ ; muH' 

 dibulce superioris, ad ceram -ii, ad rictura J-^i inferioris -|1 ; 

 iarsi^ 1 ^^. 



Habitat in Brasilia. 



D"' Swainson, natura; indagatoris seduli, acutississirai, felicis- 

 simi, haec avis, ab illo primura detecta, merito nomen ferat. 



The following MS. note was appended to this bird in Mr. 

 Swainson's hand writing. " The only individual of this species 

 I ever met with was shot or\ the Table Land, about 10 leagues 

 in the interiour of Bahia in a direction W. S. W. from the Bay of 

 St. Salvador. It was perched on the trunk of a withered tree, 

 apparently watching some small birds. The /ar« are bright and 

 the irides hazel." 



[To be continued.'] 



Art. IX. A brief Description of a pair of remarkable 

 horned mandibles of an Insect. By the Rev. William 

 KiRBY, F.R.Sf L.S.,8^c. 



These mandibles * were taken from a string of green beads 

 and other trinkets brought from New Zealand, formerly in the 

 collection of Mr, G. Humphreys, and now in that of R. D. Alex- 

 ander, Esq. F. L. S. of Ispwich. They appear to have belonged 

 either to a Lucanus or a Prionus, and consist of the mandible it- 

 self, which is trigonal, very strong, and armed internally with five 

 short teeth, that of the base being a molary one, — and of a horn 

 nearly an inch and half long, incurved at the apex, armed with 

 an obtuse tooth below the middle, above which it is transversely 

 sulcated ; the sulci being separated by tubercles alternately ele- 

 vated and depressed. This gives the horn, which rises from the 

 base of the mandible and forms an acute angle with it, the ap- 

 pearance in some measure of that of an Antelope. The animal, 

 whatever it turns up, might be distinguished by the trivial ap-^ 



pellation of Antilope. 



* Plate I. fig. 7. 



