OF WASHINGTON. 137 



them from moving backwards as the larva jerks first one and 

 then the other forward. In feeding it bends the head at nearly 

 right angles to the body and moves the mouth brushes and 

 antennas rapidly. 



Dr. Dyar also showed the larval work of Argopistes scyr- 

 toidesLec., a beetle inhabiting the lower east coast of Florida. 

 He had collected these larvas in February, 1900, mining in the 

 leaves of Forestiera porulosa, a large shrub, resembling the 

 privet. The mine goes back and forth about the margin of the 

 leaf, and the beetle larva transfers itself to a new leaf when one 

 is emptied. The larva is flattened, pale whitish with an orange 

 stripe about the subventral fold ; head and cervical shield 

 blackish brown ; thoracic feet black ; no abdominal feet. The 

 larvae transformed in the earth. 



He exhibited further a series of a Noctuid moth, showing 

 much variety, collected on the sand dun'es at Santa Monica, Cal 

 ifornia, by Mr. J. J. Rivers. The specimens seem referable to 

 the very variable Carneades perexcellens Grote, but they differ 

 from all the described forms of that species by the very pale 

 hind wings, which run to almost immaculate pure white. It 

 would seem admissible to designate this form by a new name, 

 and it may be called var. riversii, in honor of the veteran ento 

 mologist who collected it. 



Dr. Howard stated that drawings of Dixid larvas had been 

 made by the late Mr. H. G. Hubbard. He had noticed the 

 resemblance to larvag of Anopheles ; in fact an old drawing sup 

 posedly Anopheles, had afterward proven to be Dixa. 



Mr. Schwarz, commenting on Dr. Dyar's note concerning 

 Argopistes scyrtoides, said that he had beaten this flea-beetle 

 from the dodder (Cuscuta} plant near Miami, Fla., while Mr. 

 Hubbard had found it on the same plant near Jupiter, Fla. He 

 stated that in some genera of the Chrysomelidae all the species 

 have leaf-feeding habits, while in other genera certain species 

 only feed upon the leaves, others live on the roots, or are leaf- 

 miners. 



Mr. Schwarz exhibited a ball of pine resin collected by him 

 in Arizona, which, upon examination, proved to be the nest of a 

 bee of the genus Anthidium. The nest was preserved in the 

 hope of rearing the bee and ascertaining its species. Instead of 



