112 Orthonhapha bracliycera. 



1 2. Eyes witliout bands 13. Miki. 



— Eyes witli one diagonal band 13. 



13. Upper margin of the head along the eyes very narrow, 

 without erect liairs; second joint of palpi tiiickened 



at the base 11. hromius. 



— Upper margin of the head along tlie eyes broad, with 

 erect but rather short, brownish hairs; second joint 



of palpi slightly thickened 14. maculicornis. 



Subgenus Therioplectes Zeller. 

 Eyes in both sexes hairy; ocellar tubercle present. 



1. T. montanus Meig. 



1820. Meig. Syst. Beschr. 11, 55, 31. — 1880. Brauer, Denkschr. 

 kais. Akad. Wissensch. XLII, 144, 8, Tab. 1 et V, Fig. 8. — 1903. Kat. 

 palaarkt. Dipt. 11, 08. — 1862. T. tropicus, Schin. F. A. 1. 31. 



Male. Eyes green, with three bands and tlie lower margin red. 

 densely brownish hairy: eye-facets nearly of equal size. Frontal tri- 

 angie, cheeks and epistoma grey; cheeks and yowls with greyisli hairs, 

 inclining to black at the outer margin. Antennæ brownish red, basal 

 joint greyish; style more or less brownish black: the third joint con- 

 siderably dilated at the base, with a nearly rectangular excision. 

 Palpi (Fig. 33) with the second joint elongated ovate, not thickened, 

 greyish to fnlvous, with greyish and l)iackish hairs. Tiiorax blackish 

 brown with five very indistinct whitish stripes, which are best seen. 

 when the thorax is viewed from in front; the disc clothed with dark 

 brown to black hairs ; beneath the hairs are longer and paler, yellow 

 to grey; scuteilum with longer, often pale hairs; besides this pube- 

 scence there are on the disc shorter golden hairs. Tlie præalar callus 

 most frequently, but not always, black. Alidomen yellowish red witii 

 a moderately broad, black dorsal stripe, beginning broad on llrst seg- 

 ment and being narrowest on the third, the three last segments black : 

 the reddish colour ending as a rule on the first segment. Venter 

 yellowish red; first segment, a quadratic spot on the second segment, 

 and the three last segments black; sometimes there is a more or less 

 distinct dark middle line. Abdomen clothed with rather short, partly 

 black, and partly yellowish golden hairs; the golden hairs form more 

 or less distinct triangles in the middle line, and are found on each 

 side at the hind margins of the segments, forming sometimes distinct 

 golden spots; on the venter tbe pale hairs are found at the hind 

 margins of the segments, making these distinctly pale. Along the side 

 margins of the abdomen the black hairs are especially distinct. Legs 

 with the femora black. only rufous at the extreme tip; front tibiæ 



