54o Insecta. Pterodlcera. 



tudine aut longioios, ])orreclfe; sela ( raro desiiiente ) in omni- 

 bus patellsc dorso iniposila. Proboscis , paucis exccptis (Oestrus) 

 snbmembranacea , in ca% ilate orali retralfcnda, liifra geniculala, 

 tunc porrecla, lahiis magnis , tmuescentilms , capilulum effi- 

 cienliljus, inlia parlim inflexis , termiuala; baustcllura selis 

 duabus, acutis, sul);eque lungis; supera laliore, cylindrico-conica, 

 compressa , inferam sublus vaginanle; palpi ut in familia pric- 

 ccdciiti , i)r()l)oscidis stipili , paulo anle gcniculum inferum , 

 supra inserli, membranacei , exserti,plerumqueclongali, subfili- 

 formes , paulo cxtrorsum crassiores et ad apicem rolundali 

 seu obtusi , pilosi , ullra basin imirticulali. 



Hahitns plerumque iNJusc^ e/o/Kra^irirp ; corpus aliorum magis 

 elougatnm, in nonnullis sulicylindricum aut sulifiliforme. Capui 

 cule membraiiacca , subalhida aul flavesccnlij molli , antice 

 sallcm, ut in familia pra^^ccdenti , vcslitum ; oculi trigono-ovales 

 aut subovales , pleruuique scssilcs, in masculis poslice magis 

 approximali yocelii tics, verlici, in triangulum , impositi. Hal- 

 tpres squamiilis magnis sa^|)ius occiiltali, yllce incumbenlcs aut 

 ilivaricala' , ad coslam scrraUi? , siculi in Myopis , Stomoxibus , 

 fcrc communiler rcticulatne ; ccllula prin^a limbi poslici areae 

 iiitcrmeiliie frcquculius lantnm incomplcla et angusliore. ^b- 

 clomen sa^pe trigonum , iii nonnnllis subcylindrico - conicum. 

 Pedes frcqiienler pilosi aut bispidi; larsi unguibus pulvillisque 

 duobus. 



Larra apoda , mollis , vcrmifurmis, annulata, cylindrico- 

 conica, anlice acuminala, poslice crassior el obtiisa , capite 

 variabili, biunguiculalo ;nnguibus rcctractilibus ; scgmento ul- 

 timu et sicpissime primo stigmatilms duobus,in 'nonnullis cor- 

 niformibus aut pioductis, instiuctis. Pupa larva; cule con- 

 Iracla, indui-ata , oblecta. 



/. Antennoe fvonli aiit vix inferiiis inserlce ; palpi iii 

 ca^^itate orali cum proboscicle retrahencli aut ohsoleti. 



1. Vavitas oralis nulla aut fere riulla ^ proboscis palpique suh- 



