20 Mr. H. Scott on Coiylophiclw//c»»j tke 



(rig. 22) armed on the inner nlaifi'ii with a comb of long fine 

 teeth, becoming gradually sliorter towards the base. Maxilla 

 (rig. 23) with the lobe finely setose; inaxillarij ^w//) with 

 joint 2 large, obliqnelv truncate at apex, greatly produced 

 and rounded at the outer aj»icid angle, which bears six long 

 slender hmiinate processes (ef. Cvrylophus, !Matth. Mon. 

 pi. iv. fig. Do), each of" which becomes gradually broader 

 from the base outwards, then tapers to a siiarp apex ; the 

 outermost one is much the longest and is curved, the others 

 become gradually shorter inwards, the innermost ones being 

 almost the same length; joint 3 very short, transverse; 

 joint 4 a little broader than long, produced at the inner apical 

 angle, rounded olf at the outer angle, bearing short hairs on 

 the almost truncate apex. Labium (fig. 24), so far as can be 

 discerned, shaped like a spear-head ; ligula very large and 

 broadly spatulate, truncate at apex, narrowed at base; labial 

 palpi short and broad ; joints 2 and 3 both broader than long, 

 2 shaped like an asymmetrical cup produced on the outer 

 side, 3 a little narrower at its base than the apex of 2, its 

 truncate apex shortly setose. Prothora.v semicircular, ante- 

 rior margin explanate, base bisiinuite, liind angles produced. 

 Scidtllum triangular, broader than long, apex blunt. Elytra 

 very slightly broader behind the shoulders than the base of 

 the thorax, gradually narrowing behind ; outer margins not 

 much curved, explamite for about f of their length, the 

 explanate margin disappearing in the posterior^; posterior 

 outer angles broadly rounded oflp, posterior inner angles 

 slightly rounded ; a fine sutuial stiia is present, but vanish<\s 

 in the anteiior j of the elytra. Wings ample (mounted in 

 balsam). Pj/gidium rounded, projecting a little beyond tiie 

 elytra. Middle coxce moderately, hind coxce widely, distant. 



Type of the genus, Daubauia nei/chellarum, sp. n. 



Tlie only other known genus of Corylophidje with 8-jointed 

 antenna? is Oligarthrum, Matthews (Mon. p. 127, pi. iv. 

 fig. C), established for a single species, 0. ivaterhousei, 

 Matth., described from a unique example from Chili. lu 

 Oligartlirnm, however, antenna! joints 2-5 differ absolutely 

 in actual form and relative proportions from the corresponding 

 ones in ]}auhaiii t, as will be seen by comparing fi^•s. 19 and 

 20. tiie latter of which is copied from Matthews's Monograph ; 

 so that, unless many intermediate gradations come to iiglit, 

 the two insects can liardly be classed in one genus. 



The mouth-p irts of Oligarthrum have not been dissected, 

 but Matthews states that, so far as he could see, they re- 

 sembled those of Coryloylius. This resemblance is also 

 ma ked in J)aubania, as will be seen by comparing my 



