NOTES. 223 



antonnae, labelled Xortli America. But I have also seen several specimens 

 of the same species in Mr. Bigot's collection in Paris, all from Australia. 

 Macquart taking the species for north american, had erroneously iden- 

 tified it with CtoiopJiom fulicjinoui Say, wliich is a Tipula. Dr. Loew 

 (Linn. Entom. V, p. 392) noticing this error, proposed to call this 

 species Ptilogijna Macqitaiiii. As it now appears that the species 

 belongs to a different country, there is no reason for not calling it 

 Ptilogyna fidighiosa Macquart, only striking out the quotation from Say. 

 PtUogyna pida Schiner, Novara, p. 38 from Sidney is the same species, 

 as any one will perceive by comparing Dr. Schiner's description, with 

 Macquart's figure. 



46. Bolbomyia. The passage, quoted from Dr. Loew's ,, Bernstein u. 

 Bernsteinfauna" reads as follows : „A second genus, more or less related 

 to Ruppelia, may be placed among the Xylophagidae, its somewhat 

 aberrant venation notwithstanding I call it Bolbomyia and distinguish 

 two species Characteristic is the shape of the antennae; the third 

 joint consists of four or five divisions, the first of which is much larger 

 and swollen." — The other passage, quoted from Silliman's Journal, 

 only contains a remark about the difficulty of placing this species in 

 any of the adopted families. A passage of the same import is that in 

 the Monographs, Vol. I. 



47. Coenomyidae. I restore this family, adopted by most of the 

 previous authors, but suppressed in Loew's Monographs, Vol. I. It 

 seems to me somewhat prematura to unite it with the Xylophagidae. 



47 a. The name Sicus was first used by Scopoli (1763), for a 

 species of Myopa. — Fabricius , in the Supplement to his Entomologia 

 Systematica (1798), arbitrarily misapplied it to Coenoinyia, but the latter 

 name having been published two years earlier by Latreille, was main- 

 tained. 



Latreille (Hist. Nat. des Crust, et des Ins. 1804), used the same 

 name Sicus in a third, altogether different, sense, for the genus now 

 called Tadiydromia. As such, it appears on Meigen's plate 23, in the 

 third volume of his i)rincipal work. In the letterpress, Meigen rejects 

 Sicus and maintains Tuchydromia, introduced by himself in 1803. 

 Latreille preserved the name Sicus (for Tachydromia) even in his last 

 work, Families Naturelles (182.J) 



Finally, Dr. Schiner revived Sicus for the species, for which it was 

 originally intended by Scopoli. 



48. Arthropeas leptis n. sp. Brownish-gray, wings unicolorous. 

 slightly tinged with pale l)rownish-yellow. Length 6—7 mm. 



Body brownish-gray, sparsely beset with minute yellowish, erect pile 

 Thoracic dorsum brown, with two yellow lines, separating the throe 

 usual stirpes, the intermediate one of which is faintly geminate. Head 

 dull grayish, but front and vertex brown, except a narrow gray margin 

 along the orbit. Antennae blackish-brown. Legs brown, tibiae yello- 

 wish-brown; coxae grayish. Wings unicolorous, slightly tinged with 

 pale- brownish; stigma brownish -yellow. Halteres yellow, with a 

 brown knob 



