116 INSECUTOR INSCITI^ MENSTRUUS 



7. Clasp filament with a slender basal arm Sabethinus Lutz 



Without this structure Sabethes Robineau-Desvoidy 



8. Harpes with two finger-shaped processes at tip, Diphalangarpe Dyar 

 Harpes without appendages 9 



9. Clasp with an angular subapical branch, a triangular widening 



and a slender branch near base Triamyia Dyar 



Clasp of three long branches, one with enlarged tip 



Phoniomyia Theobald 

 Clasp of three short branches, rarely coalesced 10 



10. Clasp with two simple arms and expanded hairy lateral one 



Pentemyia Dyar 

 Clasp with central arm enlarged, the others small or obsolete. . 11 



11. Stem of clasp short, irregular Dendromyia Theobald 



Stem of clasp long and slender IVyeomyia Theobald 



Clasp without stem, the lobes arising close to base, Cleobannea Dyar 



12. The three stout hairs of side-piece unmodified. . .CflZ/ocffmyio Dyar 

 Two of the three hairs approximated, modified or joined 



Decamyia Dyar 



13. Apical angle of side-piece produced but little, with a thorn ; 



clasp reduced, but irregular and spurred Lemmamyia Dyar 



Apical angle of side-piece strongly produced; clasp reduced, 

 simple Hystatomyia Dyar 



Genus MIAMYIA, new genus 

 Type species : IVyeomyia symmachus Dyar & Knab, 



TABLE OF SPECIES 



(Coloration) 

 Colors of the abdomen separated on the sides in a straight 



line SYMMACHUS Dyar & Knab 



Colors separated in an irregular line, the ventral color forming 

 incisions on the posterior angles of the segments. 



Mid tarsi of male with second to fourth joints white below; 



hind legs entirely white below codiocampa Dyar & Knab 



Mid tarsi of male with only tip of second, third, and fourth 

 joints white below; tip of third, fourth, and fifth of hind 

 tarsi white below serrata Theobald 



(Gemfalia) 

 Appendages of harpes broad, with coarse hairs in a comb 



symmachus Dyar & Knab 

 These appendages slender with a long narrow tuft 



codiocampa Dyar & Knab, serrata Theobald 



