A BEET-LEAF MINER — PHORBIA FLOCCOSA. 207 



sent the specimens to Mr. R. H. Meade, of England, for his decision. 

 He kindly returned me answer that the examples submitted to him 

 belong to three different species, as supposed, but that "neither cor- 

 responds with the Antliomyia {Chortophila) hetce of Curtis {sulcans 

 Rondani), the distinctive characters of which* are to have the femora 

 all black in the male (posterior often testaceous in the female), as well 

 as the tarsi, tibial all testaceous or piceous in both sexes ; antennae 

 entirely black ; palpi yellow with black ends." 



One of the species was found to be identical with an European one, 

 and it may therefore have been introduced in this country from 

 Europe as among the many species which are common to the two 

 continents, a number, doubtless, are of European origin. The species 

 is given below. 



Phorbia floccosa (]\Iacq. ) Meade. 



Musca floralis ? of Fallen, Meigen, Zetterstedt, Schiner, et al. 

 Chortophila floccosa Macquakt : Hist. Nat. des lusectea — Dipteres, 1835, ii, pp. 



326-7. 

 Chortophila floccosa. Meade : in Entoraol. Month. Mag., xiv, 1878, p. 253. 

 Chortophila floccosa. Lintneu : in Canadian Entomologist, xiv, 1883, p. 96. 

 Phorhia floccosa Meade : in Entomol. Month. Mag. , xis, 1883, p. 314. 



In identifying this species, Mr. Meade states that it has been found 

 in England by Mr. Inchbald, feeding in the larva state upon the roots 

 of cauliflowers. It was the first time that it had been brought to his 

 notice as a leaf-miner. He also writes of it : "I see that I noticed one 

 male specimen of this species in the collection of AnthoniyiidcB sent 

 to me from the Cambridge (Mass.) Museum." In the paper here re- 

 ferred to {Canad. Entomol., xiii, p. 49), the determination of the 

 species is doubtfully given, thus: *' 74. Very similar to C. floccosa 

 Meig., 1 male, Mass." We infer from the above, that the examination 

 of these additional examples has satisfied Mr. Meade of their identity 

 with the one first seen. 



The specific name of this species refers to a little tuft of hairs like a 

 flock of wool under the base of the hind femora in the male. This sex 

 may be readily recognized by this feature, and by the additional one 

 of " the inner sides of the hind tibiae being ciliated along the middle 

 part of their inner surfjices with a series of short bristles of unequal 

 length." The original description by Macquart, above cited, kindly 

 transcribed for me by Professor Riley, is as follows : — 



Length, 3 linea. Palpi and antennoe black. Face and sides of occiput whitish ; 

 frontal band black. Thorax dingy-gray with blackish lines. Abdomen cinereous 



*These are mainly in addition to those given by Curtis above (differing in the color of 

 the palpi), who only describes the male. 



