256 LIST OF DIPTERA. 



453. Tabanus sordidus. 



Niger ; caput cano tomentosum ; thorax cano trivittatus ; abdomen 

 fulvum, vitta dorsali basi apiceque nigris, segmentorum margi- 

 nibus posticis testaceis; tibia posteriores fulvce ; alee cinerea, 

 venis nigris fusco nebulosis. 



Fern. Has much resemblance to T. recedens. Black. Head 

 clothed with hoary tomentum and down. Palpi tawny. Thorax 

 with three hoary stripes, clothed with hoary hairs ; a few black hairs 

 on each side and a ferruginous callus before each wing. Abdomen 

 tawny, with a black stripe, which is interrupted on the hind border 

 of eacli segment, and is dilated at the base and towards the tip ; 

 hind borders of the segments testaceous. Posterior tibiae tawny. 

 Wings gray ; veins black, clouded with brown ; first branch of the 

 cubital vein simple, hardly angular near the base ; subanal joining 

 the anal at some distance from the base. Halteres tawny. Length 

 of the body 6 J lines ; of the wings 13 lines. 

 a. New Zealand. Presented by Col. Bolton. 



454. Tabanus trans veksus. 



Mas et Foem. Testaceus ; antennae fulvce, parvce, subarcuatce, 

 apice nigrce ; thorax fusco quadrivittatus ; abdomen supra 

 fuscum, vitta dorsali et segmentorum marginibus posticis tes- 

 taceis ; tarsi fuscescentes ; alee subcinerece. 



Male and Fern. Testaceous. Head and thorax with white tomen- 

 tum beneath. Antennae tawny, small, slightly curved, with black 

 tips; third forming an obtuse angle above. Thorax with four 

 brown stripes. Abdomen brown above, excepting a dorsal stripe 

 and the hind borders of the segments. Tarsi brownish. Wings 

 grayish ; veins tawny ; stigma brown ; transverse veinlets black ; 

 first branch of the cubital vein simple; subanal vein joining the 

 anal close to the border. Length of the body 3^ — 4 lines ; of the 

 wings 8 — 9 lines. 



a—d. Auckland, New Zealand. Presented by Col. Bolton. 



Sandwich Islands 



455. Tabanus insularis. 

 Tabanus insularis, Cat. of Diptera, Pt. 1, 184. 



