574 Mr. T. Yernon Wollaston on the 



92. OXYDEMA (nov. gen.). The present genus is estab- 

 lished to embrace three large and very closely allied 

 species, two of which (taken by Mr. Wallace in the 

 islands of the Malayan archipelago) are from the collec- 

 tion of Mr. Pascoe, and the other (from Ceylon) in that 

 of Mr. Jan son. They are at once conspicuous for their 

 elongate, narrow, and fusiform outline being a good deal 

 attenuated both before and behind (particularly the latter), 

 their dark hue, and their somewhat slender, considerably 

 lengthened rostrum, which however is not quite parallel, 

 being appreciably broader in its anterior half (in front of 

 the antennae) than it is posteriorly. Their eyes are 

 rounded and prominent, their prothorax is even and much 

 constricted in front, their elytra are gradually narrowed 

 from the base to the apex (where they have a tendency to 

 be separately and minutely rounded-off), their anterior 

 coxaa are very remote, and their antennas and legs (the 

 latter of which have the third tarsal joint bilobed) are 

 rather long. 



93. NOTIOSOMUS (nov. gen.). Three insects now before 

 me two of which have been communicated by Mr. Pascoe 

 as coming from western Australia, whilst the other (bear- 

 ing the label "New Holland") is from the collection of 

 Mr. Fry, although, I think, specifically distinct, belong 

 unquestionably to the same genus, and that genus is 

 certainly not far removed from Oxydema. Nevertheless 

 I feel satisfied that they cannot be actually associated with 

 the members of the latter, which moreover appear to have 

 a more tropical range, occurring in (at any rate) the 

 Malayan archipelago and Ceylon ; and I would therefore 

 regard them as pertaining to an Australian type, which 

 perhaps may have other representatives in its own particu- 

 lar province. 



Primd facie, however, the present genus has much in 

 common with Oxydema, with which it agrees in its 

 rather large size, and in the fact of its rostrum being a 

 little reduced in width behind the insertion of the antennae ; 

 nevertheless it recedes from the exponents of that group 

 in the body being altogether (proportionately) less nar- 

 rowed, and much less attenuated posteriorly, as well as 

 less shining and sometimes less black ; in its rostrum 

 being rather shorter, and not quite so distinctly contracted 

 along its basal half; in its antennas (which are somewhat 

 thinner) having the second funiculus-joint less decidedly 



