ATHERIX. fiO 



witJi a tawny str'q^e along each side ; 3 last segments attenuated, with 

 t atony hind borders. 



Generally distributed. (E.) 



Genus III. ATHERIX. 



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

 Mq. Rhagio p., Fb. ; Mg. Leptis p., Fl). Anthrax p., Fb. ; Mg. kl. 



Corpus mediae magnitudinis, subpubescens, elongatum, postice attenu- 

 atura. Color obscmiis. Oculi rufo-fusci vel virides, paruni ttneo-mi- 

 cantes, unicolores. AntenncB articulo tertio transversa ; ([uarto longo. 

 Mas. Ocidi conjuncti. 

 Fcem. Oculi remoti. 



Body of middle size, do^\^ly, nearly obcouical. Head transverse, 

 semicircidar, somewhat depressed in front. Epistoma not prominent. 

 Eyes large, green. Ocelli 3, ou 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. Maxillse small, rather broad, attenuated, acute, somewhat 

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

 longer than the maxiUfe, biarticulate, porrect, haiiy, cur\'ed downward, 

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

 the first. Labium thick, submembranaceous, haiiy, longer than the 

 palpi, tumid beneath, channelled above. Antennse poiTcct, 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, Avith a scapula on each shoulder, and with a 

 transverse suture on the back ; hind angles slightly tuberculated. 

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

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

 with slender spurs. 



Male. Eyes almost contiguo)is ; facets above a little larger than those 

 in front. Abdomen almost obcouical. Hind legs robust. 



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

 and more flat. 



These flies inhabit fields and woods, and are slow iu tlieir 

 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, alis Ihmpldis fusco confertim 

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

 cauo, antennis nigris, abdominc fulvo nuicubs nigris trivitlato basi 

 nigro apicc nigro-bifasciato, femoribus auticis basi nigris, Farn. capite 



