APPENDIX. 199 



4. Macquart, Dipt. Exot II, in, Tab. XXIX. fig. 3. 

 Page 208. Ilerina mexicana. 



Viridi-cyanea. Alis limbo externo nervisque transversis fuscis. 



Long. 4 lin. — Face testacee. Front noir; vertex et derriere 

 de la tete testaces. Antennes brunes; style fauve. Thorax d'un 

 vert brillant, a reflets bleus. Abdomen raaniiue. Pieds noirs. 

 Ailes jaunatres jusqu'a I'extremite ; cellules basilaires brunes; 

 nervures transversales bordees de brun ; premiere oblique. 



Du Mexique. 



{Translation.) — Length 4 lines. Face testaceous; front black; vertex 

 and occiput testaceous. Antennae brown ; arista fulvous. Thorax of a 

 brilliant green, with blue reflexions. Abdomen — (wanting). Feet black. 

 Wings yellowish, anterior margin brown from the stigmatical cell, inclu- 

 sively, as far as the apex ; basal cells brown ; crossveins bordered with 

 brown ; the first of them oblique. 



Mexico. 



[Macquart very improperly placed this species in the genus 

 Ilerina ; it is a perfectly normal species of his own genus Ste- 

 nopterina. — Loew.~\ 



5. Walker, List of Dipt. Ins. IV. 

 Page 992. Ortalis massyJa, n. sp., Fem. 



Viridis, capite ferrugineo, abdominis segmento quinto purpureo 

 apice fulvo, palpis ferrugineis, antennis pedibusque nigris, tarsis 

 fulvis, alis albis fusco trifasciatis. 



Body metallic-green, slender, clothed with short black hairs : 

 head and chest beset with black bristles : head ferruginous above 

 and along the borders of the eyes ; epistoma ferruginous, promi- 

 nent, eyes red ; fore part slightly convex ; its facets a little larger 

 than those elsewhere : sucker black, clothed with tawny hairs ; 

 palpi ferruginous ; beset with black bristles : feelers black, much 

 shorter than the face ; third joint conical, ferruginous at the base, 

 much longer than the second ; bristle bare, very slender, more 

 than thrice the length of the third joint; abdomen long-obconical, 

 much longer than the chest, tapering, flat, and with a vein on 

 each side towards the tip, which is tawny ; fifth segment dark- 

 purple : legs black, clothed with short black hairs ; knees ferru- 

 ginous ; feet and tips of shanks dull tawny : wings white, with 



