ATHERIX. 69 



with a tawny stripe along each side ; 3 last segments attenuated, with 

 tawny hind borders. 



Generally distributed. (E.) 



Genus III. ATHERIX. 



ATHERIX, Mg. kl. (1804); Fb. ; LI. ; Mq. Musca p., Gm. ; Fb. sp. ; 

 Mq. Ehagio p., Fb. ; Mg. Leptis p., Fb. Anthrax p., Fb. ; Mg. kl. 



Corpus mediae magnitudinis, subpubescens, elongatum, postice attenu- 

 atum. Color obscurus. Oculi rufo-fusci vel virides, parum aeneo-mi- 

 cantes, unicolores. Antenna articulo tertio transverse ; quarto longo. 

 Mas. Oculi conjunct!. 

 Foem. Oculi remoti. 



Body of middle size, downy, nearly obconical. Head transverse, 

 semicircular, somewhat depressed in front. Epistoma not prominent. 

 Eyes large, green. Ocelli 3, on the crown. Proboscis porrect, not so 

 long as the head. Labrum small, robust, flat, pointed, as long as the 

 labium. Lingua slender, subulate, very acute, nearly as long as the 

 labrum. Maxillae small, rather broad, attenuated, acute, somewhat 

 shorter than the labium, seated beneath the labrum. Palpi much 

 longer than the maxillae, biarticulate, porrect, hairy, curved downward, 

 subcylindrical ; first joint short ; second more than twice the length of 

 the first. Labium thick, submeinbranaceous, hairy, longer than the 

 palpi, tumid beneath, channelled above. Antennae porrect, approxi- 

 mate, much shorter than the head ; first joint cylindrical ; second cya- 

 thiform ; third transverse, flat, oval, larger than the second ; fourth 

 long, setiform, bare, seated on the third near the tip. Thorax a little 

 broader, than the head, with a scapula on each shoulder, and with a 

 transverse suture on the back ; hind angles slightly tuberculated. 

 Wings diverging, finely pubescent. Alulae entire. Halteres uncovered. 

 Abdomen hairy, with 7 segments. Legs rather long; tibiae armed 

 with slender spurs. 



Male. Eyes almost contiguous ; facets above a little larger than those 

 in front. Abdomen almost obconical. Hind legs robust. 



Fern. Eyes more remote ; all the facets small. Abdomen broader 

 and more flat. 



These flies inhabit fields and woods, and are slow in their 

 movements. 



1. Ibis, Fb. e. s. iv. 556 (1792); Mg.; Ct. ! b. e. i. 26; Mq. ; 

 Gr.; Lw.; Gmtl. maculata, Mg. kl. ; LI. Titanus, Fb. (fcem.) ; 

 Mg. kl. Cinerea, thorace fusco-trivittato, alia limpidis fusco confertim 

 maculatis ad costam obscurioribus, pedibus fulvis ; Mas. capite subtus 

 cano, antennis nigris, abdomine fulvo maculis nigris trivittato basi 

 nigro apice nigro-bifasciato, femoribus anticis basi nigris ; Foem. capite 



