INSECUTOR INSCITI^ M^NSTRUUS 67 



The European C. annulata Schr. finds a representative with 

 us in C. maccrackenae D. & K., and C glaphyroptera Schin. 

 in C. impatiens Walk. Our C. incidens Thorn, seems to have 

 no European representative, which is surprising, as incidens 

 has both western and northern distribution and by the usual 

 rule might be expected to occur intact in Europe. The isolation 

 of C. inornatus Will, is more comprehensible, as this has a 

 southern distribution with us and disappears toward the north, 

 being thus well disconnected. 



The subgenus Culicella has two representatives in Europe, 

 only one with us, namely, C. dyari Coq., representing the 

 European C. morsitans Theo. 



Genus Orthopodomyia Theob. 



Quite unexpectedly our single species has reached us from 

 the north, O. signifer Coq. having a near representative in the 

 European O. pulchripalpis Rond. The other known species 

 have a tropical distribution, and the natural supposition would 

 be that O. signifer came from the south. The opposite con- 

 clusion, however, is clearly indicated. 



Genus Mansonia Blanch. 



This case exactly parallels that of Orthopodomyia, our M. 

 perturbans Walk, having a near European representative in 

 M. richiardii Eic. The other Mansonia are of tropical distri- 

 bution, and one of these forms has actually reached us in 

 southern Florida, M. titillans Walk. 



Genus Aedes Meigen 



Taking the groups of the subgenus Ochlerotatus as defined 

 by me (Ins. Ins. Mens., viii, 105-106, 1930), the scrratus and 

 scapularis groups are unrepresented in Europe, as befits their 

 southern distribution and evident origin. 



Group pullatus 

 This group appears remarkably stable, as three out of our 

 four species are still existing unaltered in Europe. A. aurifer 

 Coq. seems to have no European representative, and is probably 



