444 Professor Williston on the 



mesonotum with black hairs. Scutellum large, with two stout, 

 remote, black bristles. Abdomen brown or blackish, yellowish at 

 base. Legs light yellow ; hind femora black at the immediate tip. 

 Wings cinereous hyaline; basal cells complete; penultimate 

 section of the fourth vein a little longer than the posterior cross- 

 vein, or the last section of the fifth vein. Length 1\ mm. 



One specimen. 



GEOMYZID^. 



Anthomyza. 



Fallen, Spec. Entom., 1810; Leptomyza, Macquart, 

 Hist. Nat. Dipt., 1835 ; Anthophilinaj Zetterstedt, 

 Ins. Lapp., 1840. 



1. Anthomyza clnereM, n. sp. (PI. XIV., fig. 170, 



head of c?.) 



(^ , $ . Front broad, narrowest opposite the insertion of the 

 antennae ; yellow, the vertical margin more or less cinereous ; with 

 four rows of short bristles, reaching nearly to the root of the 

 antennae. Antennae yellow, the third joint orbicular and more or 

 less brownish ; arista nearly bare. Face and cheeks light yellow. 

 Eyes small, oval. Occiput flattened, cinereous. Thorax black in 

 ground-colour, but thickly covered with grey dust, that on th© 

 mesonotum somewhat yellowish ; hair of the mesonotum black, 

 bristly, the true bristles, however, confined to the posterior part in 

 the middle. Abdomen black, but more or less thickly whitish 

 pollinose, and with recumbent white hair ; first two segments of ten 

 in part reddish ; remaining segments with a more or less distinct 

 yellowish or whitish hind border. Legs yellow, the moderately- 

 thickened femora often infuscated distally ; terminal joints of the 

 tarsi more or less brown ; bristles on the posterior inferior surface 

 of the front femora not conspicuous. Wings cinereous or smoky 

 hyaline ; third section of the costa only a little longer than the 

 fourth ; second vein gently curved ; penultimate section of the 

 fourth vein only a little longer than the last section of the fifth. 

 Palpi slender, yellow. Length 2^-2f mm. 



Twelve specimens. "March. Common on the sandy 

 sea- shore, alighting on the wet, wave-washed sand.^^ The 

 species seems to be allied to A. gracilisj Fallen. 



