II^MOBORA. 287 



two-thirds of the length; cubital vein ending at the tip of the costal; 

 praibrachial vein distinct to the border of the wing at some distance 

 behind the tip ; pobrachial vein somewhat nearer to the fore border 

 than to the hind border as far as the discal transverse vein, distinct 

 from thence to the border ; discal transverse vein slujlilly curved, nearly 

 upright, parted by less than half its lemjth from the frcehrachial trans- 

 verse vein ; anal vein distinct to the border, with a transverse vein be- 

 tween it and the pobrachial. Halteres minute. Abdomen short-obco- 

 nical, not so long as the thorax ; segments with indistinct sutures above, 

 retracted beneath towards the base. Legs stout, slightly bristly, wiile 

 apart, of moderate length ; tdjitie shorter than the femora ; tarsi shorter 

 than the tibiae ; ungues moderately long, curved, tridcntate ; onychia 

 small. 



Infests birds. 



1. avicularia, L. Fu. 1922 (1761) ; D. G. ; F. ; Schr. ; Gmel. ; 

 Eossi ; Leach ; Latr. ; Fal. ; Meig. ; Mcq. ; Zett. — viridis. Leach ; Latr. ; 

 Meig. — viridida, Meig. — FrinyiUina, Curt. ! B. E. xiii. pi. 585. Fulvo- 

 viridis, fronte thoracisque dorso fulvis, oculis ore antemiisque fuscis, 

 thoracis vitta dorsali testacea, alis subcinereo-hyalinis, unguibus nigris. 

 Long. 2-2i ; alar. 0-7 lin. 



Gi'cen, more or less varied with tawny, which colour chiefly prevails 

 on the front and on the thorax. Eyes, mouth, and antennae brown. 

 Thorax with a testaceous dorsal stripe. "Wings greyish-hyaline; veins 

 blackish. L'^ugues black. 



Common. (E. S. I.) 



Genus lY. H^MOBORA. 



ILemobora, Curt. B. E. i. 14 (1824). 



Caput transversum, subtrigoimm. Oculi parvi. Ocelli tres. Thorax 

 capite pauUo latior, subquadratus. Ala? longaj, vence distinctce, 

 transversce reraotce. 



" Head broader than long, somewhat triangular. Eyes very remote, 

 small. Ocelli three, in a triangle, sunk in foveolce. Antenna) inserted 

 close to the anterior angles of the clypcus, globular, hairy, sunk into 

 the head. Labrura horny, elongate, hollow, slightly arched, enclosing 

 the lingua. Lingua nearly as long as the labrum, slender. Labium 

 horny, arched, hollow, enclosing the labrum and tlie lingua. ]\Iaxillaj? 

 rigid, obtuse, cdiated with strong hairs, united at their internal ridges, 

 bent downwards, including the proboscis, and extending beyond the 

 head like a beak. Mentum large, coriaceous, membranaceous, covering 

 and conceaUng the base of the proboscis. Thorax a little broader than 

 the head, nearly quadrate, dilated near the base of the wings, notched 

 in front. Scutellum broad and short. Wings very long, rounded ; 



