Meigen has described eight European species of this genus, 

 but two only have been discovered in England, and they ai-e 

 of rare occurrence. This group has been formed into several 

 genera by Desvoidy, and divided by Macquart, but to which 

 section the second species belongs I cannot say. The larva 

 of one species, the O. coccinea, Meig., lives in Pe7itatoma gri- 

 sea, and another, O. radicum^ Fab., has been bred from pupae 

 found in the roots of cabbages, which the following species 

 also inhabits. 



1. brassicaria Fab. — Curt. Brit. Ent. pi. 629. — cylindrica De 



Geer. — segnis Panz. 



On the 24th of June I saw two or three of these flies amongst 

 bushes and alighting on footpaths in the Isle of Portland, where 

 Mr. Dalton Serrell also took a specimen last July. Mr. Sa- 

 mouelle says it is found on the trunks of trees in June. 



I ought to remark that the legs of the specimen dissected 

 varied from the one figured in the number and length of the 

 spines, and the claws and pulvilli were much shorter, yet they 

 seemed to be both males ; and one of my specimens wants the 

 black dot on the 2nd segment of the abdomen. 



2. interrupta Meig. t;. 4. p. 213. 5. 



" Thorax white before with 2 black stripes ; abdomen at- 

 tenuated at the base, black, sides of the 1st and 2nd segments 

 rufous ; wings blackish : 4 lines long." 

 Said to have been found near London. 



Corrigiola littoralis, Sand Strap wort, was gathered the end 

 of last August on Slapton Sands, near Dartmouth, and trans- 

 mitted to me by Dr. W. A. Bromfield. 



