122 Mr. H. W. Bates on the Longicorn 



prolonged towards tlieir apices ; iu the male strongly dehiscent 

 at the suture ; they are a little wider at the base than the base 

 of the thorax, and liave the usual lineated punctuation from 

 the base to the middle. The sutural stria is deeply sunk. 



Auckland, six examples {Mr. Lawsoti) ] Christchurch {Mr. 

 Fereday)^ three examples. 



The punctuation at the base of the elytra varies considerably. 

 In some specimens there are only two simple rows of punc- 

 tures ; but in others there are two or three rows, each composed 

 of a larger number of punctures, arranged often without order. 

 The difierence is not sexual, but the two varieties are strongly 

 pronounced. 



XyloioUs palclieUus^ n. sp. 

 X. nano proxime affiuis, at dLff'ert elytris magis ellipticis fusco 

 fasciatis, corpore subtus dense cinereo-tomentoso. Parvus, nigro- 

 cupreus, alutaceus, pube grisea vestitus ; elytris ad humeros 

 angustis, regulariter ellipticis, apice conjunctim subacute rotun- 

 datis, plagis fuscis magnis duabus fasciiforndbus, altera pone 

 medium, altera apicali. Long. 2\ lin. 



Closely resembling X. nanus, but the elytra decidedly more 

 elliptical in form, i. e. narrower at the shoulders and more 

 regularly rounded on the sides, the apex being jointly rounded ; 

 the surface is of the coppery black or dark brown of the full- 

 coloured examples of X. nanus ; and the grey pubescence is 

 spotty in the same way on the elytra ; but the dark patches lie 

 in two places, forming irregular broad fascia3, one at the middle 

 and the other at the apex. The antennse are rather more 

 slender, and have a larger portion of the apices of the joints 

 pitchy black. Beneath, the insect is more densely clothed 

 ■with grey pubescence. 



Christchurch {Mr. Fereday) ; one example. 



Xylotoles scissicauda, n. sp. 

 X. elongato-ellipticus, castaneo-fuscua, griseo-pubescens ; thorace 

 medio utrinque dilatato-turaido, supra sulcis duobus transversis 

 fortiter impressis, alteroquo dorsali, basi subtiliter transversim 

 multistrigoso ; elytris humeris paululum productis, obliquis, 

 postice gradatim attenuatis, apice dehiscentibus ibique sutura, 

 emarginata, supra fere ad apicem lineatim punctatis, costulisque 

 utrinque tribus. Long. 3|-4 lin. 



This very distinct species may be recognized at once by the 

 thorax — tumid, almost tubercular in the middle on each side, 

 with the anterior and posterior transverse sulci deeply im- 

 pressed and united in the middle by a longitudinal dorsal im- 

 pressed line. The tubercle on each side is coarsely sculptured ; 



