40 



Xylobanus rigidus. 

 (Plate X. fig. 1.) 



Fuscus ; thorace elytrisque pallide ochraceis ; thorace septem- 

 areolato ; elytris quadricostatis, interstitiis uniseriatim foveatis. J . 



Long. 4| lin. 

 Hah, Java {J. C. Bowring, Esq.). 



It is perhaps doubtful whether this should be separated from the 

 preceding. It differs, however, in having the thorax and elytra of 

 a uniform colour, the ajitennse are much more strongly dentate, the 

 thorax does not present the same roughness in front, and the trans- 

 verse costae of the interstices of the elytra are further apart, the 

 spaces divided by them being nearly squares, even in the lateral 

 interstice. 



Xylobanus foveatus. 



(Plate X. fig. 2.) 



This species differs from the preceding in having the thorax and 

 elytra of a dull yellowish red. The antennae are very strongly 

 dentate ; the thorax has the posterior angles not diverging, and the 

 mesial posterior areolet, instead of terminating in the middle of the 

 disk, extends much more forward. 



Hah. India, Barrackpore ? (Sir J. Hearsay). 



Xylobanus rubens. 



(Plate X. fig. 4.) 



Fuscus ; thorace, scutello elytrisque flavo-rufis ; thorace septem- 

 areolato ; elytris quadricostatis, interstitiis uniseriatim foveatis. § . 



Long. Sg lin. 

 Hah. Siam (J. C. Bowi-ing, Esq.). 



This species resembles X foveatus, but is broader, the posterior 

 angles of the thorax are acute, and the transverse costae of the in- 

 terstices of the elytra are twice as close together, the space between 

 the costae being about equal to the thickness of the costae. 



Xylobanus humilis. 



(Plate X. fig. 5.) 



Fusco-niger, opacus ; thorace fusco, antice angustato, septem- 

 areolato, margine antico subtiliter punctulato ; elytris quadricostatis, 

 interstitiis uniseriatim foveatis, dimidio basali sordide testaceo, foveis 

 atris. 5 . Long. 5 lin. 



Hah. Sarawak ( Wallace). 



Thorax with the seven areolets distinct ; the anterior margin 

 rather produced in the middle. Elytra parallel, dull black ; the four 



