and Species of Longicorns. 271 



exsertse. Prosternum depressum. Abdomen molle, Isevissimum, 

 segmento ultimo detecto. 



This genus lias a soft abdomen and thin membranous 

 elytra, like Vesjjerus. In outline it somewhat resembles 

 Neostenus, but differs in its spined prothorax &c. Mystrosa 

 has a quite different textm-e*. 



Maltlieba flexilis. 



M. fulvo-rufa, subtus elytrisque testaceis, subnitidis, pube subtili 

 grisea vestita ; capite prothoraceque subtiliter punctulatis ; scu- 

 tello transverse ; elytris subtilissime punctulatis, humeris caUosis, 

 apicibus rotundatis, singulis costulis quatuor instructis. Long. 

 141in. 



Hah. West Australia. 



Syllitus terminatus. 



S. fulvo-aurantiacus, apice elytrorum nigro ; antennis infuscatis 

 nitidis ; prothorace ante medium valde constricto ; elytris minus 

 elongatis, singulis costulis duabus discoidalibus in medio manifesto 

 magis separatis ; apicibus femorum infuscatis ; abdomine infra, 

 basi excepta, nigrescente. Long. 3 lin. 



Hab. Nicol Bay (West Australia). 



Syllitus tabidus. 



S. pallide aurantiacus, elytris straraineis ; antennis rufo-luteis ; 

 prothorace vix constricto ; elytris angustis, costulis duabus dis- 

 coidalibus in medio minus separatis ; abdomine basi paUide in- 

 fumato. Long. 3| lin. 



Hah. Nicol Bay. 



These two species are too distinct to be confounded with 

 any of the four previously described from Australia. 



AphiorhyncJms divisus. 



A. angustior ; capite prothoraceque totis rufis, obsolete punctulatis ; 

 antennis nigris, articulis 3., 4., 5. basi subluteis, art. tertio quam 

 quarto plus duplo breviore; elytris dimidio basali aui'antiacis, 

 apicali cyaneis, leviter costulatis, inter costulas conferte punctu- 

 latis, apicibus oblique truncatis ; metasterno abdomineque sub- 

 uigris ; pedibus infuscatis, femoribus tibiisque anticis aurantiacis 

 exceptis. Long. 4 lin. 



Hab. Queensland (Rockhampton). 



* In reference to Aposites, another genus of this subfamily, M. Lacor- 

 daire is certainly in error in assigning it a prothorax " strongly rounded " 

 at the posterior angles ; on the contrary, they are so produced, owing to 

 a slight reflection at the base, as to form, when viewed from above, a 

 distinctlj"^ acute outline. This is well shown by Mr, Robinson in the 

 figure (Journ. of En torn. ii. pi. 16. fig. 6). 



20* 



