MELOl'IIAGUS. 289 



than the thorax, truncated at the tip ; sutures of the segments very indis- 

 tinct. Legs very stout, bristly, moderately long, wide apart. Tibiae n 

 little shorter than the femora ; tarsi much shorter than the tibiae ; 

 ungues long, stout, curved, tridentate ; onychia small. Male. Ocelli 

 three. Wings long, very narroxc, acuminated. Abdomen a little longer 

 and broader than the thorax, much truncated in the middle at the tip. 

 'Fern. Eyes smaller than those of the male. Ocelli none. Wings short, 

 triangular ; pra3brachial, pobrachial, and anal veins distinct to the bor- 

 der; discal transverse vein straight, oblique, parted by a little less 

 than its length from the praebrachial transverse. 



1. Hirundinis, L. Fn. 1923 (1761); F. ; Schr. ; Rossi; Fal. ; 

 Leach ; Latr. ; ^.Leig. ; IVIeq. ; Zett. — Kirbgana, Leach ; Meig. ; Mcq. 

 Fulva aut testacea, alis sublimpidis, unguibus nigris. Long. 2-2^ ; 

 alar. 4|-5 lin. 



Tawny or testaceous. Wings nearly limpid ; veins tawny. Abdomen 

 sometimes ferruginous. Ungues black. 



Infests swallows. Generally distributed. (E. S. I.) 



Genus VL MELOPHAGUS. 



Melophagus, Latr. Gen. iv. 36 (1809) ; Leach ; Meig. ; Mcq. ; 

 Westvv. ; Blanch. lUppohosea p., L. ; F. ; Schr. ; Gmel. ; Fal. ; 

 Pz. Pediculus p., Frisch. Melopliila, Nitzsch. Melophaga, Zett. 



Corpus parvura, depressum, coriaceum. Caput magnum, transversum, 

 thorace pauUo latius, subtus trigonum. Frons antice tubcrculata et 

 subconcava. Facies brevis. Epistoma subconvexum. Oculi parvi. 

 Ocelli nuUi. Thorax parvus, sublinearis, tuberculatus. Al(S niiflai. 

 Abdomen subrotundum, thorace pauUo longius et multo latius. Pedes 

 robusti. Ungues longi, validi, curvati, bidentati. 

 Body of small size, depressed, tough, coriaceous, shining, haiiy and 

 bristly. Head large, a little broader than the thorax, broader than 

 long, triangular beneath. Front tuberculated and bristly in front, 

 where the border is very slightly concave. Face short. Epistoma 

 slightly convex. Eyes small, oblong, slightly convex, bare, not promi- 

 nent. Ocelli none. Mouth as long as the head. Autenna; like 

 tubercles. Thorax nearly linear, slightly convex, tubcrculate, ])ristly, 

 not developed. Sternum broad. Prosternum much advanced. Wings 

 none. Abdomen nearly round, hairy, a little longer and much broader 

 than the thorax ; sutvu'cs of the segments very indistinct. Legs very 

 stout, bristly, moderately long, wide apart. Tibi;e shorter than the 

 femora. Tarsi hardly shorter than the tibia;. L^ngues long, stout, 

 curved, bidentate. 



''The union of the valves of the sheath is so short that they 

 VOL. n. 2 p 



