A HISTORY OF DURHAM 



Pachyrrhina comicina, L. 



— guestfalica, Westh. 



— analis, Schm. 



— quadrifaria, Mg. 



— lunulicornis, Schm. 



— annulicornis, Mg. 

 Tipula pagana, Mg. 



— confusa, V. de Wulp 



— longicornis, Schm. 



Tipula truncorum, Mg. 



— hortensis, Mg. 



— varipennis, Mg. 



— scripta, Mg. 



— plumbea, F. 

 — • lunata, L. 



— lateralis, Mg. 



— vernalis, Mg. 



Tipula vittata, Mg. 



— gigantea, Schrk. 



— lutescens, F. 



— oleracea, L. 



— paludosa, Mg. 



— fascipennis, Mg. 



— peliostigma, Schum. 



— ochracea, Mg. 



RHYPHIDiE 



Rhjphus fenestralis, Scop. 



Rhyphus punrtatus, F. 



STRATIOMYIDiE 



The Soldier-flies are not largely represented in this county. None of the three first sub- 

 families have as yet been observed, and of the rest only S. cuprariut and irr'uLitus and 

 B. chalybeata are common. 



Chrysonotus bipunctatus, Scop. Sargus iridatus, Scop. Beris vallata, Forst. 



Sargus flavipes, Mg. Microchrysa polita, L. — chalybeata, Forst. 



— cuprarius, L. — flavicornis, Mg. — geniculata, Curt. 



Of the next five families only the Cleg is common among the Tabamdeey although 

 C. ctscutlem is sometimes fairly plentiful. All the LcptidiS are common, except L. lineola and 

 5. craaicornh. D. rufipes, among the Asilida, is generally distributed and very common along 

 the banks of the Gaunless. Philonicm is only found on the sand hills near Hart. Our only 

 Bee-fiy is common in April where primroses abound, and the two Themndce are fairly 

 abundant among the Bent grass on the coast. 



Hjematopota pluvialis, L. 

 Therioplectes montanus, Mg. 



Leptis scolopacea, L. 

 — tringaria, L. 



Dioctria rufipes, Deg. 



TABANIDiE 



Therioplectes solstialis, Mg. 

 Tabanus autumnalis, L. 



LEPTID^ 



Leptis conspicua, Mg. 

 — lineola, F. 



ASILID^ 



Philonicus albiceps, Mg. 



Chrysopsccecutiens, L. 



Chrysopilus auratus, F. 

 Symphoromyia cr.issicornis 



Dismachus trigonus, Mg. 



BOMBYLIDiE 

 Bombylius major, L, 



THEREVIDiE 



Thercva nobilitata, F. 



Thereva annulata, F. 



EMPID^ 



Several species of these two-winged robbers are among our commonest flies. They may 

 often be seen with their long snipe-like beaks buried deeply in the body of some unfortunate 

 victim. Most of them are generally distributed, but Chersodromia is confined to the shore 

 rocks, while CHnocera and Ardoptera have only as yet been found in the upper dales. 



Hybos grossipcs, L. 



— fcmoratus, Mllll. 

 Cyrtoma spuria, Fin. 

 Rhamphomyia nigripcs, F. 



— sulcata, Fin. 



— dentipcs, Ztt. 



— variabilis, Fin. 



- unibripcnnis, Mg. 



— flava. Fin. 

 Kmpis tcsscllata, F. 



- livida, L. 



Fmpis borcalis, L. 



— stercorca, L. 



— trigramma, Mg. 



— punctata, Mg. 



— pennipcs, L. 



— vernalis, Mg. 



— vitripcnnis, Mg. 



— chioptcra, Fin. 

 Hilara maura, Y. 



— manicata, Mg. 



— quadriviitata, Mg. 



»34 



Hilara chorica. Fin. 



— thoracica, Mcq. 

 (Edalia holmgrcni, Ztt. 

 Oxydromia glahricula, l''ln. 

 Clinoccra fontinalis, Hal. 



— bistigma. Curt. 

 Ardoptera irrorata, V\x\. 

 Chersodromia arenaria, Hal. 

 Tachydromia flavipes, F. 



— cursitans, F. 



— bicolor, F. 



