386 Mr. Kirby's Century of Insects. 



Plate XXI. Fig. 3. 

 Long. Corp. lin. lOJ — 12. 

 Habitat in Brasilia. D. Hancock. 

 Corpus lineare, subcylindricum, obscuro-viride, mollissime cine- 

 reo-pubescens. Caput suborbiculatum. Labrum rotundatum, 

 apice emarginatum. Labium integrum, niinutuni, hirsutissi- 

 niuin. Mandibuloi niagnae, porrectae, prinuim divergentes, de- 

 mum subito convergentes, unde subfractse evadunt, intus 

 basin versus dente valido acute armataB. Palpi longi admo- 

 dum : articulo extimo subovato. Mentum transversum. An- 

 tennce nigras, multiarticulatse, flabellalae : ramulis circitcr 27, a 

 medio basin versus et apicem longitudine sensim decrescentes. 

 Thorax subconicus, antice transversus, postice obsolete trilo- 

 bus : lobo intermedio emarginato, lateralibus acutis. Elytra 

 fusca, punctata, margine omni, sumnio apice excepto, pallide 

 flavo. Pedes nigri : femoribus, apice excepto, coxisque rufis. 

 Tibia apice bicalcaratae. Sternum rufum, acutum, incurvum, 

 vix deflexum. Abdomen segmentis plerisque apice obscure 

 rufis. 



The Brasil species of this genus vary from those of New Hol- 

 land (one of which I shall hereafter have occasion to describe) in 

 having only one tooth near the inner base of each mandible; 

 M'hereas in the latter there are two. The last joint of the palpi of 

 this is cylindrical, while in K. marginata it is subovate or ovato- 

 lanceolate. Hence may be formed two natural families in the 

 genus, * MandibuUs intus unidentatis ; ** Mandibulis intus biden- 

 tatis. 



l^Lampyridic.) 



