110 [May. 



This species comes very naturally between X. traversi and X. costatus. It 

 is not half the size of the latter ; but is a little larger than X. traversi, more elon- 

 gate, with the sculpture more developerl and the costation continued near to the 

 tip. Of the forms found on the mainland it is perhaps nearest to X. rngicoJIis, but 

 it is very different in colour and the elytra are singly rounded at the tip. The 

 thorax is elongate and subcylindric and bears two transverse channels, otherwise 

 it is very indistinctly sculptured. The scutollum is covered with pallid pubescence. 

 The elytra have each an elevated rib running along the suture, and outside this 

 three others, the space between bearing much coarse irregular sculpture ; the third 

 costa is itself divided behind the shoulder so as to fork somewhat, and form in fact 

 two costro. The ventral segments have each a conspicuous spot of yellow pubescence 

 at the side. 



The four specimens found bv Prof. Schauinslaud differ but little, 

 and the British Museum collection has two others. 



Ch-'^^ham Islands. Prof. Schauinslaud. 



Xtlotoles abnormalis, sp. nov. 



Minutus, brevi-'i, tettarens. jyallidits, towe7itosits ; tlior ace for titer trans- 

 verso ; corporis latere longitud inaliter fuscescente . Jjonq. 5 mm. 



This minute Lamiid looks like a Hyholasius, but as it is flightless I place it in 

 Xyloiotes where it will come near to X. Huttoni. The front of the head is very low, 

 and the mouth much inflexed. The antennas have the third and fourth joints very 

 elongate, the fourth a little tlie shorter but quite twice as long as the fifth ; from 

 this to the end each is slightly shorter than its predecessor. The thorax is scarcely 

 so long as broad, infuscate at the sides and across the middle. The after body is 

 short, the elytra covered with minute toraentum which allows, however, numerous 

 small pits to be seen ; they are pallid, but at each side there is a large irregular 

 dark patch which beyond the middle approaches near to the suture. Under-surface 

 infuscate. Femora short and thick, yellow, with dark marks. 



Chatham Islands. Prof. Schauinslaud, two specimens. 



Aldonus chathamensis, sp. nov. 



Ferrufiinens vel piceus, setis erectis numerosis superne vestitus, hand 

 squamosus, rude sculpturatus ; suhtus setosus, inter setas squamis perpaucis 

 munitus. Loncj., 7| — 13 mm. 



Distinguished from A. hylohioide.t and all the other species ascribed to the 

 genus by the absence of scales from the upper surface. The rostrum is longer than 

 it is in A. hylobioides ; it bears fine erect hairs, but, in consequence of the absence 

 of scales its coarse sculpture can be distinctly seen. Thorax very rough, with 

 tubercnlar sculpture, with fine, short, erect hairs, and with still shorter, very 

 slightly curved, thicker, more pallid setae, which represent the squainosity that is so 

 remarkable in the other species. The elytra are rather deeply striate, and the 

 striiE have very large punctures, separated only by short intervals one from the 

 other. 



Chatham Islands. Prof. Schauinslaud. 



Cambridge : February, 1903. 



