150 l-I'"'e, 



of frontalia witli blue-black reflections ; facial sette few or none ; palpi yellow or 

 piceous ; antennae with third joint long and thick ; arista bare, thickened to about 

 the middle, where it becomes abruptly slender ; thorax with the shoulders cinereous ; 

 three post-sutural dorso-central bristles ; abdomen narrow, cylindrical, very long in 

 the male, with discal setae on the middle segments, which are very small and rather 

 indistinct in the female, sides of the segments with silvery-white reflections, forming 

 portions of interrupted transverse bands ; wings brown in the male, nearly white in 

 the female, apical and outer cross veins both nearly straight. Very rare. 



H. MEDORIKA, Schnr. 

 Bright black ; frontalia narrow, about one-sixth of the width of the head in 

 the male ; frontal stripe wide and piceous ; face very narrow and white ; facial setae 

 small, but extending half way up the facialia ; antennae with second joint a little 

 elongated, the third slender, and about four times the length of the second ; arista 

 gradually thickened to about the middle, and slightly pubescent, with the second 

 joint a little prolonged ; palpi black ; thorax with the shoulders snowy-white, and 

 having a broken white line extending across the transverse suture ; three post- 

 sutural dorso-central bristles ; abdomen brownish-black, with small patches of white 

 reflections on the sides of the segments ; middle rings with small discal as well as 

 ri511 epical setae ; wings brunescent ; legs black. I received a specimen of this rare 

 June, 1892. species from Mr. Billups in August, 1890, which he had bred from Poedisca 

 sordidana. 



34.— METOPIA, Mgn. 



Oen. eh. — Eyes nude, widely separated in both sexes; fronto- 

 orbital bristles in a double row at the back, both in males and females, 

 but only in a single row in front in the former ; facial angle oblique ; 

 forehead prominent, and having more or less silvery glitter ; facialia 

 ciliated along the whole or a greater part of their length ; antennae 

 with the second joint short, and the third fully six times as long ; 

 arista bare ; abdomen without discal setae, and mostly spotted ; wings 

 with fourth longitudinal vein bent at a sharp angle, and furnished with 

 a cubital appendix. 



1 (7) (8) Legs black. 



2 (3) Forehead of male coated in front with silvery lacquer ; sides of frontalia 



only, silvered in the female 1. leucocephala, Rossi. 



3 (2) Frontalia of ordinary form in both sexes. 



4 (5) (6) Abdomen with sharply defined triangular spots... 2. argyrocephala, Mgn. 



5 (4) (6) Abdomen with semilunar or subtriangular spots 3. campestris, Fin. 



6 (4) (5) Abdomen with nearly straight transverse bands 4. amahilis, Mgn. 



7(1) (8) Legs with pale tarsi 5. rubritarsis, Ztt. 



8 (1) (7) Legs with red femora 6. forficulce, Newport. 



M. LEUCOCEPHALA, RoSsi. 

 (J . Forehead very prominent, glazed over the whole of its front portion with 

 silvery lacquer, which extends to the roots of the antennae, forming a kind of plate, 



