MR. F. P. PASCOE ON THE CUROULIONIDJE. 



199 



Gasterocercus. In habit it is like Plinthus Slurmii. But for the 

 well-marked metathoracic episterna, its affinities would seem to 

 be nearer to Poropterus. 



Omydaus plinthoides. O. ovatus, niger, opacus, squamis sordide 

 griseis conspersus ; capite rostroque basi confertim punctatis ; antennis 

 piceis ; prothorace reticulato-punctato, punctis sajpe confluentibus, 

 in medio manifeste longitudinaliter carinato ; scutello subtransverso ; 

 elytris seriatim favosis, interstitiis alternis paulo elevatis; corpore 

 infra vage punctato, squamis subsilaceis adsperso ; pedibus rude 

 punctatis, setulis nigris erectis sparse adspersis. Long. 5 lin. 



Hab. New South Wales (Illawarrg). 



The following genera, as far as JEsycliora, belong to that part 

 of Lacordaire's "groupe Cryptorhynchides vrais," which has a 

 pectoral canal extending to the intermediate coxae, and its apex 

 open*; those of them which have the three intermediate seg- 

 ments of the abdomen equal, and are allied to Pezichus, may be 

 tabulated as follows : — 



Femora grooved beneath for the reception of the tibias. 

 First tarsal joint moderate or short .. Sybulus. 



First tarsal joint long Glyphagia. 



Femora not grooved beneath. 

 Club of the antennae cylindrical. 



Elytra broader than the prothorax at the base. 



(Pezichus, Waterh.). 

 Elytra not broader than the prothorax. Endymia. 

 Club of the antennae ovate Panopides. 



Endymia. . 



(Cryptorhynchinae.) 



Bostrum aequilatum, tenuatum, arcuatum ; scrobes rectae, in $ 

 submedianae, in S subterminales, ante oculos attingentes. 



* " En gouttiere " of Lacordaire. This character, however, must be taken 

 with a certain reservation. In Cryptorhynchus lapathi the canal is not open 

 at the apex to the same degree as in Macromerus crinitarsis (I take these two 

 well-known forms as an illustration) ; it is, I should say, slightly cavernous: but 

 then the mesosternum, in which the apex of most of the Cryptorhynchinre ter- 

 minates, is not vaulted, or raised at the edges in the same way as in the truly 

 cavernous structure. But in this as in other characters there are transitions 

 which it is scarcely possible to limit. 



