14 PROCEEDINGS ENTOMOLOGICAL SOCIETY 



tious from his letters on the ground that the letters were pri- 

 vate ones. He said that his reasons for not using the new 

 name Blatclla instead of the preoccupied one Phyllodromia 

 (for which he has been criticized) were that the genus con- 

 tained a large number of heterogeneous species and needed re- 

 vision, when the names would have to be greatly changed, 

 while to change the generic name in the mean time would, he 

 thought, only tend to increase the confusion. Mr. Shelford 

 pointed out that his preoccupied name Ceratinoptera castauea, 

 for which Mr. Caudell had proposed the new name shelf ordi, 

 had been already renamed by himself Ceratinoptera usambar- 

 ensis (Genera Insectorum, fasc. 73, Blattida}, Phyllodromiiuae, 

 p. 19.) 



Mr. Caudell said that he had not regarded Mr. Shelford's 

 letter as private but as a scientific communication from a rec- 

 ognized authority, whose opinion would be a matter of gen- 

 eral interest. 



The following papers were accepted for publication : 



A NEW DIANTHIDIUM FROM PARAGUAY. 



[Hymenoptera; Apoidea.] 

 BY CURT SCHROTTKY. 



Dianthidium vernoniae, new species. 



Female. Black with a few yellow marks on the head and the three 

 terminal segments of abdomen with broad yellow bands. 



Head a trifle broader than thorax, almost nude, only with a few very 

 short yellowish bristles, all over -coarsely and deeply punctured. Eyes 

 a little convergent at base, their inner orbits with a narrow yellow 

 line. Mandibles longitudinally striate, clypeus broader than long, with 

 a shallow transverse depression before its apical margin. Scutum nasale 

 trapesiform ; malar space practically none. Two small yellow spots 

 between the insertion of antennae. Distance of hinder ocelli about 

 one and a half diameters, distance from the eyes more than two dia- 

 meters. A yellow line along the hinder margin of the head, this sharply 

 truncate and deeply emarginate. Antennae 'fuscous, scape black, 

 stained apically with a little ferruginous. 



Thorax robust, throughout covered with deep coarse punctures, 

 except the vertical part of the median segment, which is minutely 

 punctured above and smooth below. Pronotum very short, only its 

 blunt lateral angles being visible. Mesonotum a little broader than 

 long, with its lateral margin deeply depressed, the depression forming 



