2li6 RHAPHIDORRHYNCHÜS ROTHSCHILDt. 



This new species is respectfully dedicated to Lord Walter 

 Rothschild. 



Rhaphidorrhynchus politus Senna. 

 (Ann. Soc. Ent. Belg. Tom. XXXVIII, p. 605, 1894). 



A male and a female from Mexico. 



The male has a length of 13 mill, the female not more 

 than 9 mill. The female sex , hitherto undescribed , differs 

 by the head being shorter and provided with a feeble im- 

 pression on the front , by the basal portion of the rostrum 

 being shorter than the head and obsoletely furrowed , by 

 the anterior portion being cylindrical and smooth. The 

 antennae have the joints shorter, the prothorax is broader 

 anteriorly and shorter. In the specimen before me the 

 two short lines of the 2"^ interstice behind the middle are 

 united. 



Rhaphidorrhynchus variabilis Senna. 

 (1. c. p. 606). 



A male from Mexico. 



Rhaphidorrhynchus linearis Senna. 

 (1. c. p. 607). 



I refer to this species a female from Mexico. Its body 

 is robust; the head is short, with a shallow impression 

 between the eyes, and the posterior angles are indistinct. 

 The basal portion of the rostrum is as long as the head, 

 furrowed, the anterior portion is elongate, filiform, smooth ; 

 the 2nd joint of the antennae is shorter than the 3rd; the 

 prothorax is broader than in the male; the external angles 

 at the apex of the elytra are slightly prominent, not 

 toothed. The disposition of the ferruginous lines is as in 

 the male, the colour is bronzy brown. In regard to the 

 length (17 mill.) and robustness this specimen resembles 

 R. mexicanus Senna , but the above mentioned characteristics 



iNotes from the Leyden IMuseum , "Vol. XVI. 



