Calandra.] RHYUCHOPHORA. 389 



exhausts the air and, on the tank being opened next day, a very large 

 number of the weevils will be found dead. 



I. Thorax with very large, diffuse, oblong punctures; colour 

 unicolorous, pitchy -ferruginous or pitchy-black ; average size 



larger C. GRASAKIA, L. 



II. Thorax with moderate, closely set, subrotundate punctures ; 

 colour pitchy-black or pitchy-red, with two reddish spots ou 



each elytron C. OETZS, L. 



C. granaria, L. Pitchy-black or dark ferruginous, antennae and 

 legs ferruginous; oblong, rather depressed; rostrum moderately long, 

 slightly curved, dilated a little in front of base at the insertion of the 

 antennae ; thorax about as long as elytra, gradually narrowed in front 

 and constricted before apex, with very large oblong punctures placed not 

 very closely together ; elytra with deep punctured striae, interstices 

 narrow, alternate ones somewhat raised at base ; breast very coarsely 

 punctured. L. 2-3| mm. 



Male with the r strum shorter than in female, and the metasternum 

 and abdomen slightly impressed at base. 



In granaries, bakers' shops, &c. ; widely distributed and only too common through- 

 out the greater part of the kingdom. 



C. oryzae, L. Very like the precediug, but on the average consider- 

 ably smaller, and easily distinguished by its colour, which is pitchy 

 with two reddish spots on each elytron; in light examples these spots are 

 not very apparent, but the species may easily be known by the punc- 

 tuation of the thorax, which is closer, with the punctures smaller and 

 rounder ; the striae of the elytra also are more strongly punctured and 

 the interstices are narrower, and are furnished with very short yellowish 

 bristles. L. 2-3 mm. 



In rice and grain of various sorts ; not so common as the preceding bat widely 

 distributed in various parts of the kingdom ; Scotland, occasional, Forth and Solway 

 districts ; Ireland, near Dublin. 



I have specimens of a third species, smaller than either of the pre- 

 ceding and of a reddish testaceous colour ; they are, however, evident 

 importations ; the same may perhaps be said of C. oryzce, but I have 

 thought it best to include the species. 



COSSONINA. , 



This tribe may be distinguished from the Calandrina by the fact that 

 the pygidium is entirely covered by the elytra and the thorax is less, 

 and the elytra more, elongate ; the form is cylindrical and the colour 

 uniform, varying from pitch black to ferruginous; the antennae are 

 usually inserted at or in front of the middle * of rostrum and not nearly 

 at base as in Calandra, and the scape of the antennae scarcely reaches 



* This does not always hold good : in the male of Rhopalornetites Tardj/i, the 

 antennae are inserted just before base. 



