in the Collection of W. W. Saunders, Esq. 123 



from thence to the tip ; subanal vein joining the anal at some dis- 

 tance from the border. 



Length of the body 5 lines ; of the wings 9 lines. 



Para. 



Tahanus hitlnctus. 



Fcem. — Piceus, capitis callo longo angusto, antennis nigris ar- 



cuatis, rornu distincto, abdomine ferrugineo, apice nigri- 



cante, alis obscure cinereis, venis nigris, halteribus apice 



albidis. 



Female. — Piceous ; head with a long, slender and uninterrupted 



callus ; antennas black, curved, with a distinct horn at the base of 



the third joint ; abdomen ferruginous, blackish at the tip ; wings 



dark grey ; veins black ; fore branch of the cubital vein simple, 



forming a distinct obtuse angle near its base, almost straight from 



thence to its tip ; subanal vein joining the anal at some distance 



from the border ; halteres with whitish tips. 



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

 Para. 



Tahanus cingultfer. 



Fcem. — Piceus, capitis calio nigro angusto antice subdilatato, 

 antennis nigris, articulo 3° subdilatato, thoracis lateribus, 

 scutello pectoreque cano-tomentosis, abdominis segmentis 

 cano-marginatis, pedibus nigris, tibiis albo late cinctis, alis 

 cinereis, venis stigmateque nigris. 

 Female. — Piceous ; head with a slender black shining callus, 

 which is slightly dilated in front ; proboscis, palpi and antennae 

 black, the latter slightly dilated and angular at the base of the 

 third joint, but without a horn ; sides of the thorax, scutellum 

 and pectus with a hoary tinge ; abdomen with a hoary band on 

 the hind border of each segment ; legs black ; tibiae white, black 

 at the base and towards the tips ; wings grey ; veins and stigma 

 black ; fore branch of the cubital vein nearly straight, subanal 

 vein joining the anal at some little distance from the border. 

 Length of the body 4 lines ; of the wings 8 lines. 

 Amazon Region. 



Tahanus mallophoroides, 



Fcem. — Niger, capite apud oculos albo, callis duobus parvis, 

 antennis cornu elongate arcuato, thorace guttis duabus latera- 

 libus albis, abdomine rufo, fasciis duabus basalibus flavis, 



