in the Colleclion of W, W. Saunders, Esq. 273 



ciibitalis ramo antico angulato furcam emittente, stigmate 

 flavescente, halteribiis albidis. 

 Allied to T. inconspicuus. Female. — Pale testaceous yellow : 

 licad with the callus long and slender, but slightly dilated in 

 front; proboscis black ; antennae with the third joint very small 

 and slender, but dilated and angular towards its base ; thorax 

 and pectus with slight whitish tomentum; abdomen somewhat 

 brighter than the thorax. Wings quite vitreous ; veins whitish 

 testaceous, somewhat darker along the costa ; fore-branch of the 

 cubital vein forming a well-defined obtuse angle at its base, and 

 there emitting a fork ; sub-anal vein joining the anal at some 

 distance from the border ; stigma yellowish ; halteres whitish. 

 Length of the body A \ lines ; of the wings 9 lines. 

 Mexico. 



Tabanus incipiens. 

 Fcem. — Niger, capite albido. callo nigro tenui antice posticeque 

 dilatato sub-quadrato, pnlpis albis, antennis ferrugineis, 

 thorace cinereo, pectoris lateribus albidis, segmentorum ab- 

 dominaliuni marginibus posticis maculisqne dorsalibus tri- 

 gonis albidis, tibiis albis apice nigris, alis sub-cinereis, venae 

 cubitalis ramo antico angulato furcam brevissimam emittente. 

 Allied to T. trinotatus, Wd. Female. — Black : head whitish, 

 with a very slight callus between two black sub-quadrate shining 

 spots ; palpi white ; antennae ferruginous ; third joint hardly di- 

 lated; thorax with cinereous tomentum; pectus whitish on each 

 side ; abdomen with a whitish band on the hind border of each 

 segment, these bands dilated and angidar in the middle above ; 

 tibiae white, with black tips ; wings greyish ; veins black ; fore- 

 branch of the cubital vein forming a well-defined slightly obtuse 

 angle at its base, and then emitting an extremely short fork ; sub- 

 anal vein joining the anal very near the border. 

 Length of the body '6\ lines; of the wings 7 lines. 

 Amazon region. 



Tabanus ahscondens. 

 Fcem. — Nigricans, capite subtus pilis albis, callo longo gracili 

 antice sub-dilatato, palpis fulvis, antennis parvis obscure fer- 

 rugineis apice nigris, thoracis lateribus ferrugineis, abdo- 

 minis segmentis ferrugineo - marginatis, ventre ferrugineo 

 fasciis abbreviatis nigris, pedibus fulvis, tibiis anticis apice 

 femoribus anticis tarsisque anticis nigris, alis sub-cinereis, 

 halteribus albidis. 

 Allied to T. tenebrosus. Female. — Blackish. Head with white 



