WALKEE ON DIPTEEA OF AEU ISLANDS. 83 



20. Obrapa CELYPHoiDES, n. s. Foem. Atra, nitens, subtilissirae 

 punctata, capite glabro, antennis piceis, tarsis albidis, alls nigro-cine- 

 reis, venis nigris, halteribus niveis. 



Female. Deep black, very minutely punctured. Head smooth ; antennae 

 piceous; tarsi whitish; wings blackish cinereous, veins black; hal- 

 teres snow-white. Length of the body 2 lines ; of the wings 4 hues. 



Earn. TABAISTID^, Leach. 

 G-en. Tabanus, Idnn. 



21. Tabanus recusans, n. s. Fosm. Piceus, cinereo-subtomentosus, 

 callo nigro angusto, antennis rufis apice nigris, humeris rufescentibus, 

 abdomine basi glaucescente, tibiis obscure ferrugineis, alis nigro-fuscis, 

 apice margineque postico cinereis. 



Female. Piceous, slightly covered with cinereous tomentum. Callus 

 of the head black, long, slender, entire ; antennae red, black towards 

 the tips, angle of the third joint very small; thorax reddish on each 

 side in front of the forewings ; abdomen with glaucous tomentum 

 towards the base; tibiae mostly dark ferruginous; wings blackish- 

 brown, cinereous towards the tips and along the hind border ; veins 

 black ; forebranch of the cubital vein simple, very slightly undulating, 

 its tip, like that of the radial vein, clouded with blackish -brown. 

 Length of the body 6^ lines; of the wings 12 lines. 



Earn. ASILID^, Leach. 



Subfam. Dastpogonites, . Walk. 



Gren. Dastpogon, Fabr. 



22. Dasypogon inopinus, n. s. Fcem. Piceus, facie aurata, mystace 

 parvo albo, antennis ferrugineis, apices versus nigris, capite transverse 

 longioribus, articulo tertio lineari, pectore fasciis tribus canis, abdo- 

 minis segmentis ferrugineo fasciatis, alis luridis, apud costam nigro- 

 fuscis, halteribus testaceis. 



Female. Piceous. Face flat, brightly gilded ; epistoma not prominent ; 

 mystax with a few white bristles ; mouth black ; antennae ferruginous, 

 black towards the tips, longer than the breadth of the head ; third 

 joint linear, longer than the first and the second together; pectus 

 with three hoary bands ; abdomen subclavate, nearly twice the length 

 of the thorax ; a ferruginous band on the hind border of each seg- 

 ment ; legs mostly ferruginous ; wings lurid, blackish-brown towards 

 the costa, veins black; halteres testaceous. Length of the body 

 8 lines ; of the wings 14 lines. 



23. Dasypogon honestus, n. s. Luteseente-fulvus, capite, antennis, 

 pedibus alisque nigris, thorace vitta schistacea nigro marginata vit- 



