.1 Moiwgiai>h o/ EqyjiUaii Diplcra. 



13. ENSINA, Kobineau-Desvoidy. 



Rob.-Desv.. Myod., 751 (1830). 



Allied to Tep/nitis, but (listiiit^uished froin it and froni othei- 

 gênera by the very characteristie thape of the head and by tho 

 narrow elongate wings whidi usually possess a reticulate iiattern. 



Head very depressed, i.e. broader than high and as deep as 

 broad; frons narrow, longer than broad ; face short and concave: 

 eyes fairly ronnded ; cheeks very narrow; epistoma prominent; pro- 

 boscis long, geniculate; palpi elongate, narrow with a few bristles at 

 the end; occiput usually swollen below; antennae inserted below the 

 middle of the eyes, reaching the epistoma, the third joint twice the 

 length of the second and a little pointed at the upper corner, arista 

 at most microscopically pubescent; s.or. 1 or 2, /.or. 2 or 3; oc. 

 stron^ \prt. parallel; genal bristle weak; or p. well developed. 



Thorax with pale j^ubescence and a complète chaetotaxy ; only 

 1 strong m/>!.; scutellar bristles 2 or 4. 



Abdomen slender with paler pubescence and jjossessing latéral 

 and terminal bristles; maie hypopvgium small and ronnded; female 

 ovipositor fairly short, flattened. 



Wings narrow and elongate with a small costal bristle; Kl not 

 reaching the radio-median cross-veins; ail the veins are straight but 

 no two are parallel ; inferior angle of Cu cell very short but pointed ; 

 wing pattern reticulate, the reticulation being sometiraes little de- 

 veloped . 



TYPE : M/i.<^ca mnchi Linnaeus (1766) 



Hendel has pointed out the necessity for the extension of the 

 présent genus to embrace other species besides the typical i^onch/. 

 Owing to the fact that the prolongation of the proboscis is very va- 

 riable in the différent species, Bezzi has suggested that the genus 

 should be restricted to those species in which the form of the head 

 has the very characteristic shape which may be seen in sonchi and 

 sororcula; however he further provisionally admits in the genus 

 some African species in which the head is less or not at ail depressed 

 and which possess a very long proboscis. 



The members of this genus usually jiass their larval stage, 

 in the floral buds of Compositae Frauenfeld has bred the 



