THE CANADIAN ENTOMOLOGIST. 55 



Lavatera {Saviniona) insularis Watson, is peculiar to the islands. 

 We found that one of the commonest species on South Island was 

 Hazardia berheridis Gray, described from All Saints Bay, Lower 

 California, and not found in the United States. I am indebted to 

 Mrs. K. Brandegee for its identification. This is not the place to 

 discuss the flora at length, but it may be added that already intro- 

 duced weeds are becoming abundant in places, more particularly 

 the European grass Achyrodes aureuni Linn. (det. Agnes Chase). 

 An abundant native fern proved to be Pellcea andromedcefolia Kaulf 

 (det. Maxon). 



We found a single species of snail, Micrarionta stearnsiana 

 Gabb, in great abundance. It is a species characteristic of Lower 

 California, extening up the coast to the region about San Diego. 



Among the insects, by far the most conspicuous species, 

 occurring in great numbers, was a very fine Pepsis with red wings. 

 I cannot, at present, separate it from the common P. formosa Say 

 {chrysothemis R. Luc), though it seems somewhat different from 

 a specimen collected in New Mexico. These wasps were observed 

 to prey on the large "tarantula" spiders, which apparently belong 

 to Avicularia calif or nica Banks, described from near San Diego. 

 Other wasps taken were an Odynerus and an ordinary-looking black 

 Priononyx. The common ant of South Island is Messor andrei 

 Mayr. The only butterfly seen, but this abundant, was Lycaena 

 exilis Boisd.; a little larger than the form of the species found in 

 New Mexico. A specimen of Hippodamia convergens Guer. was 

 collected. Various other insects, some of which look interesting, 

 will be reported on at a later date, when they can be determined. 



The bees number seven species, of which three are new, but 

 one of them was also taken on the Californian coast. There are 

 only two genera. 



Anthophora calif ornica Cresson. 

 One male, at flowers of Hazardia 'berberidis. A form with hair 

 on thorax above paler than usual. Eyes yellowish green in life. 



Anthophora urbana Cresson. 

 One male. A variety with dark tegulae. 



Halictus catalinensis Cockerell. 

 Five females. The abdominal hair-bands vary from fulvous 

 to greyish white. The species was described from Catalina Island. 



