LIST OF DIPTERA. 



Genus 4. BERIS. 



Palpi fere obsoleti. Antennae subfusiformes, non stylatae ; fla- 

 gellum subconicum. Scutellum plerumque spinis 4 — 8 armatum. 



Beris, Latr. Gen. Crust. ; Meig. ; Wied. ; Macq. ; Curt. ; Zett. 

 Musca, p., Linn. ; Forster ; Fabr. ; Schr. 



Stratiomys, p., Fabr. ; Forster ; Gmel. ; Geoffr. ; Panz. ; Fall. 

 Actina, p., Meig. ; Klass. 



Mediastinal vein ending at beyond half the length of the wing- 

 Subcostal ending at a little beyond the mediastinal. Radial ending 

 at three-fourths of the length. First branch of the cubital straight 

 or nearly so, ending at before half the distance between the radial 

 and the tip of the second branch, which is very little in front of the 

 tip of the wing. Praebrachial ending at a little behind the tip by 

 means of the first externo-medial, second and fourth externo-medial 

 complete, subarial united to the anal at some distance from the 

 border, and thus closing the aual areolet. Discal veinlets forming 

 two sides of the pentagonal or hexagonal discal areolet. Median 

 veinlet distinct. Humeral, subcostal, mediastinal, radial, first cubi- 

 tal, second cubital, praebrachial, pobrachial, anal, axillary, subapical, 

 discal, and three externo-medial areolets complete. Axillary lobe 

 and subaxillary lobe incomplete. Subapical areolet occupying the 

 tip of the wing. 



Europe. 



1. Beris clavipes. 



Nigra ; abdomen luteum ; pedes flavi, tarsis fuscis ; alee fuligi 

 nosce. 



Musca clavipes, Linn. 



Beris. clavipes, Loew, fsis, 1840, 518. 



a—/. England. From Mr. Stephens' collection. 



g. Chepstow. Presented by F. Walker, Esq. 



h. Interlacken, Switzerland. Presented by F. Walker, Esq. 



2. Beris vallata. 



Nigra; abdomen luteum ; pedes flavi, tibiis apice tarsisque fiavis ; 

 alee maris fuscescentes, fceminae hyalince. B. M. 



