370 SUPPLEMENT. 



11. Empis atrifemur, sp. n. 



Hab. Mexico, Xucumanatlan in Guerrero 7000 feet (II. H. Smith). 



A single female from the above-mentioned locality represents a species closely allied 

 to, but distinct from, E. annulipes. It differs as follows : — Antennae shorter ; second 

 joint but little shorter than the first ; first and second joints light yellow, the first 

 somewhat darker; style more slender. Proboscis piceous. The stripes of the meso- 

 notum apparently wanting. Femora black, the anterior ones brownish towards the 

 tip. Front metatarsi shorter and more incrassated. The hairs on the legs longer and 

 denser, especially on the posterior pair. 



12. Empis bicolor. 



Empis bicolor, Bell. Saggio, etc. ii. p. 98 l . 



Hab. Mexico, Amula in Guerrero (//. //. Smith), Cuautla 1 . 



Two males and eight females, The males have the wings clear. A species not 

 identified by Osten Sacken (antea, p. 216). 



13. Empis xochitl, sp. n. 



$ . Robust ; dull, opaque black throughout, the only lighter portions being the piceous proboscis, the base of 

 the halteres, and the subhyaline wings. Front of uniform moderate width. First antennal joint short, 

 second shorter, third slightly longer than the other two together ; arista forming a continuation of the 

 third joint, stout. Proboscis twice as long as the eye-height. Margin of first abdominal segment fringed 

 with bristles, which are stronger laterally. Legs not ciliated, though the longer hairs are serially 

 arranged on the underside of the femora and on the inner and outer sides of the tibiae ; front metatarsi 

 slightly compressed. Wings almost hyaline ; no stigmal spot ; anterior branch of the third vein obliquely 

 disposed ; anal vein attaining the margin. 



Length 4*5 millim., of the wing 4 millim. 



Hab. Mexico, Chilpancingo in Guerrero 4600 feet (H. H. Smith). 



14. Empis dolorosa, sp. n. 



<3 . Black. Eyes closely contiguous, with an acute angular emargination on each side of the face above. Face 

 shining black. Antennae black, about as long as the head ; second joint more than half the length of the 

 first; third joint longer than the first two together, narrowed on the distal half or more ; style slender, 

 about half as long as the joint. Proboscis black, as long as the head and thorax together. Mesonotum 

 very slightly dusted with white, shining; hair and bristles not abundant, black. Pleurae whitish- 

 pollinose. Four anterior femora and the middle tibiae and tarsi luteous-yellow ; front tibiae and tarsi and 

 the hind legs darker brown or blackish ; metatarsi not dilated ; legs provided with rather sparse hairs. 

 Wings somewhat broad, varying from brownish to hyaline, with an elongated inconspicuous brown stigma ; 

 discal cell short ; the penultimate section of the fifth vein much shorter than the ultimate section ; 

 furcation of the third vein acute ; fourth vein abbreviated, not reaching the margin. Abdomen scarcely 

 shining. Hypopygium small ; filament yellow, thick, with its tip concealed. 



Length 5 millim. 



Hab. Mexico, Amula in Guerrero 6000-8000 feet (H. H. Smith). 

 Two specimens. 



