INSECTA. 



337 



acuminate. Eyes distant ; of the male closer than those of 

 the female. 



* Thorax roughish, with elevated ftoints. 



The larvse of the species of this division of" the genus in- 

 habit the frontal sinuses. 



Sft. \.Ovis. Oestrus ovis. Clark, Trans. Lin. Soc. in. 



Inhabits the frontal sinuses of the sheep in the larva 

 state; the perfect insect is found on walls and stones in the 

 vicinity of sheep-folds. 



»* Thorax with square shining naked sfiots. 



The larvae of this section reside beneath the skin of 

 herbivorous mammalia. 



Sft. 2. Bovis. 



Oestrus Bovis. Clark, Trans. Lin. Soc. iii. 



The larvae of this species, named by the peasants War- 

 bles or Wornils, " are found beneath the skin on the backs 

 and loins of oxen, causing tumors as large as pullets' eggs." 

 The perfect insect, or gadfly, is found about the end of 

 summer, and is much dreaded by oxen. 



Genus DCCCX. Gasterophilus, Leach. Oestrus, of 

 authors. 



Wings, with all the hinder cells terminal. Thorax, with 

 its surface smooth. Abdomen, with its extremity inflexed ; 

 of the female, very much elongated and attenuated. Eyes, 

 in both sexes, equally distant. 



The larvs of the Gasterophili, as their name imports, in- 

 habit the stomach of herbivorous quadrupeds, and are call- 

 ed bots; the perfect insects botflies. 



Sft. 1. Equi. Leach, Mem. Wern. Nat. Hist. Soc. 

 vol.ii. 



Oestrus Bovis. Linne. 



Oestrus BquU. Clark, Trans. Lin. Soc. vol. iii. 



The larva inhabits the horse. 



Sect. II. Eproboscidea. 



The larvae are nourished within the abdomen of the mo- 

 ther, and, when full grown, are passed in the form of an 

 oviform pupa, covered with the indurated skin of the larva. 

 We have described the species in the second volume of 

 the Memoirs of the Wcrnerian Natural History Society of 

 Edinburgh. 



Stirfla 1. Wings, two ; the hinder cell only commenced. 

 Thorax anteriorly entire, acuminated. 



Genus DCCCXI. Hippobosca, of authors. 



Ocelli, none. 

 Sft. 1. Equina. Linne. 



Inhabits the horse, and is vulgarly called Forester. 

 Stirfts 2. Wings, two; the hinder cells complete. Thorax 

 anteriorly notched for the reception of the head. 



* Wings of nearly an equal breadth throughout. 



Genus DCCCXII. Olfersi\, Feronia, Leach. 



Ocelli, none. 



Sft. 1 . Sftinifera. Leach, Mem. Wern. Soc. vol. ii. 



Genus DCCCXIII. Ornithomyia. Latr. Oliv. Leach. 

 Ocelli, three, situated in foveolx. 

 Sft. 1. Avicularia. 

 Hiftftobosca Avicularia. Linne. 

 Inhabits the black grouse and tit pipit. 

 ** Wings acuminated. 



Genus DCCCXIV. Stenepteryx, Leach. 



Ocelli, three. 



Sft. 1. Hirundinis. 



Hiftftobosca hirundinis. Linne. 



Inhabits the nests and bodies of the house-swallow. 



Genus DCCCXV. Oxypterum, Kirby, MSS. Leach. 



Ocelli, none. 



Sft. 1. Kirbyanum. 



Oxyftterum Kirbyanum. Leach, Mem. Wern. S 

 vol. ii. 



Inhabits England. 



Stirfts 3. Wings, none. Thorax anteriorly notched for 

 the reception of the head. 



Genus DCCCXVI. Melophagus, Latr. Leach. 



Ocelli, none. 

 Sft. 1. Ovinus. 

 Hiftftobosca ovina. Linne. 

 Inhabits the sheep. 



INDEX. 



A Gen. Sp. 



OClltatUS 788 1 



Acrocera "4 



sunguinca 754 1 



Acroceride*. p. 313. 



Acromyia, Bonclli 742 



Actina '[' 



cliahbea 711 1 



Anisopui 699 



Anthomyia 790 



pluvialu 790 1 



Anthrvci<k-»,p. 333. 



A'" 1 '™* ill i 



Hottintotta 745 1 



Aphiitii W» , 



auro-pube»cen» 769 1 



crabromforimi "■<<* * 



nigrum 098 1 



Arto-rell* 753 



marginatft "«•* * 



Athena 7*8 



raaculata 728 1 



Atractocera. Meig. 708 



Vol. XI. Part I. 



B 



Bacta. Fabr. 

 Berii 



nigritarsis 

 Bibio 



huitulamii 

 Bombylides, p. 833. 

 Bombylim 



major 

 Burbot- us, Meig. 

 Buceutes 



cinereui 



Ctenomyia 



ferruginea 

 Call i cere 



;*>nea 

 Callomyia 



clegani 

 Calobata 



lilitiirmix 

 Ctcidomyift 



lute* 



Ceratopogoii 



fern unit us 

 Ceria 



Scopoli 



veipiformU 

 Ceroplatus 



tipuloides 

 Chamacmyia, Meig. 

 Cbtronomus 



plumosus 

 Chloropi, Meig. 

 Chrysogaster 



cneus 

 Chrysops 



Chrysotoxum 



arcuatum 

 Clitellaria 



ephippium 

 Cona, Sciiell. 

 Conophorus, Meig. 

 Co hops 



auuleata 

 Conopiides, p. 335. 

 Cordvla 



tusca 



Corethra 



culiciformii 

 Ctenophora 



atrata 

 Culex 



pipiens 

 Culcicoides 



punctata 

 Cyltenia 



macula ta 

 Cyrtus 



acephalus 

 Cytherea, Meig. 



Dae in, Fabr 

 Daaypogon 



punctatus 

 Dictya. Fabr. 

 Dilophus 



febrilis 

 Diuctria 



oelandica 

 Diopsis 



Gen.Sp: 



Dolychopidei, p. Hi. 





Dulvchonu, 

 nobilitatus 



738 



732 



Doras 



762 



eonopicus 



762 



E 





Echinomyia 



107 



Eloirbilua, Meig. 



807 

 760 



Empitlt-j, p. 333. 





Empii 



740 



V>realit 



740 



Eonothrix, Meig. 



80* 



Eoriita. Meig. 

 Ephippium.Lat." 

 Eprobockles, p. 337. 



801 



71S 





Era*, Scop. 



716 



Eriopteryx, Meig. 



696 



Eriopteryx 



696 



aire 



696 



EtuihIu 



597 



scneui 



774 



Narcini 



75» 



1 



U u 



