THE MANGOLD -FLY. 29 



ANALYSIS OF SPECIES. 



A. Antennee entirely black or grey. 



Sp. 1. BET^, Curtis. 

 A.A, Antennae with the two first joints red. 



a. Frontal space black. 



Sp. 2. HYOscYAMi, Panzer. 



b. Frontal space red or yellow. 



* Abdomen partially or wholly testaceous. 



Sp. 3. CHENOPODii, Rondani. 

 ** Abdomen entirely grey. 



Sp. 4. coNFORMis, Fallen. 



Sp. 1. C. hetce, Curt., sulcans, Rond., atr'qMcis ? , Goureau, 

 ejfodiens (female), Rond. — Long. 2^ lin. Eyes subcontiguous in 

 male, separated by a space equal to one-third of the width of the 

 head in female ; forehead slightly prominent ; frontal space 

 rufous at fore part in male, totally yellow in female, with a white 

 border ; palpi yellow with black tips ; body yellowish grey in 

 male, and ashy grey in female ; thorax with three indistinct 

 brown dorsal stripes ; abdomen with three or four longitudinal 

 spots on the back, forming an interrupted dorsal band, nearly 

 obsolete in the female ; legs black in the male, with the exception 

 of the four tibise, which are tawny ; legs of female with femora 

 and tibiae wholly testaceous, or with the femora partly cinereous, 

 and sometimes striped along their upper surfaces with brown ; 

 tarsi black; wings with the external transverse vein slightly 

 oblique. 



Sp. 2. C. hyoscyami, Panz. — Long. 2 — 2^ lin. Head 

 similar to that of C. hetce, except that frontal space is black, and 

 basal joints of antennae are red ; palpi yellow with black tips ; 

 thorax ash-grey with five indistinct stripes ; abdomen marked as 

 in C. betes, sometimes entirely cinereous, but frequently with a 

 testaceous tinge, particularly towards the apex, which shows 

 through the grey pubescence ; legs testaceous with black tarsi, 

 and more or less gre}^ at the bases of the anterior femora ; 

 external transverse veins of wings upright. 



Sp. 3. C. chenopodii, Rond. — Long. 2 — 2^ lin. This si^ecies, 

 of which I only know the female, is similar to C. liyoscyami in all 

 points, with the exception of having the frontal space yellow and 



