NO. 2018. SYNOPSIS OF GENERA OF AGROMYZIDJE—MALLOCH. 131 



13. Frons with two rows of short bristles on the central stripe • Rhicnosssa Loew. 



Frone bare except for the orbital bristles ' Tethina Haliday. 



14. Costa reaching to third vein, fourth vein indistinct (pi. 4, figs. 2, 3, 8) 15. 



Costa reaching to fourth vein, fourth vein distinct ' Hemeromyia Coquillett. 



15. Mesopleura bare Euchlorops, new genus. 



Mesopleura with 2-3 bristles Meoneura Rondani. 



I have retained Hemeromyia Coquillett m the Milichinse because it 

 has more affinities mth this family than with the Geomyzidae, to 

 which group it bears some resemblance in its possession of the short 

 costal thorns. Parodinia, while possessing these spines also, has in 

 addition preapical tibial bristles. 



Genus MILICHIELLA Giglio-Tos. 



Milichiella Giglio-Tos, Ann. Soc. Ent. France, 1895, p. 367. 

 Ophthalmomyki Williston, Trans. Ent. Soc. Lond., 1896, p. 426. 

 Stenoporomyia Hendel, Wien. Ent. Zeitg., vol. 22, 1903, p. 250. 



The characters given in the synoptic table of genera should serve 

 to separate this from the other genera in Milichinee. Becker in his 

 paper on this group ^ gives 17 species as belonging to this genus from 

 various parts of the world. I have only found four of these in the 

 U. S. National IMuseum collection, one of which, lucidula, has not 

 been recorded, under that name, from America. 



SYNOPSIS OF SPECIES IN MILICHIELLA. 



Males. 



1. Abdomen almost entirely silvery white pollinose 2. 



Abdomen black, or with only two white spots 3. 



2. Mesonotum shining black; third and fourth veins strongly convergent. 



arcuata Loew. 



Mesonotum dull gray, generally with brownish longitudinal vittse; third and 



fourth veins only slightly convergent dnerea Coquillett. 



3. Second abdominal segment with two white side spots lucidula Becker. 



No white spots on second segment lacteipennis Loew. 



Females. 



1 . Mesonotum glossy black 2. 



Mesonotum dull gray, with brown vittae dnerea Coquillett. 



2. Incision on posterior margin of eye large; disk of abdomen, except that of last seg- 



ment, subopaque; last section of fourth wing vein one and one-third times as 

 long as penultimate; outer cross vein at about its own length from end of fifth. 



lacteipennis Loew. 



Incision on posterior margin of eye small; disk of abdomen entirely glossy; last 



section of fourth vein twice as long as penultimate; outer cross vein about twice 



its own length from end of fifth arcuata Loew. 



" Some species of Rhicncessa and Tethina will run to 14, in which case Tethina may be separated from 

 Hemeromyia by the absence of costal thorns, and Rhicncessa by the character which separates it from 

 Tethina. 



2 Ann. Mus. Nat. Hung., vol. 5, 1907, p. 607. 



