394 INSECT MISCELLANIES. 



o, Scorpion-flies (Panorpina). 



b, Day-flies (Ariisoptera). 



c, Dragon-flies (Libellulina). 



d, White-ants (Termiiina). 



c, With large wings (Mes^aloptera). 



5. With four hairy wings (Trichoptera). 



6. With four unequal wings (Hymenoptera). 

 a, Borers, (Terehrantia). 



b, wasps, bees, ants, &c. 



c, ruby tails, &c. 



7. stylops (Strepsiptera). 



II. Insects with Suckers (Haustellata) . 



1. With powdery wings (Lepidoptera). 



a, Butterflies appearing by day (Diurna). 



b, Moths appearing at twilight (Crepuscularia). 



c, Moths appearing in the afternoon (Pomeri- 

 diana). 



d, Moths appearing at night (JVodurna). 



e, Moths appearing partly by day (Semidiurna). 

 f. Moths appearing in the evening ( Fespertina). 



2. With two wings (Diptera). 



3. With elonged jaws and two wings, or none (Ho' 



maloptera). 



4. With wings not perceptible — fleas (Aphanip- 



tera). 



5. Without wings (Aptera). 



6. With two wings and overlapping wing-cases 



(Hemipfera). 



a, Land insects (Terrestria). 



b, Water insects (AquaticaJ. 



7. With two wings and wing-cases not overlapping 



each other (Homoptera). 



THE quinary system. 



Mr W. S. MacLeay, the author of this system, pro- 

 poses to arrange insects in circular groups of fives, so 

 as to place those which have the nearest resemblance, 

 or (as he terms it) affinity^ contiguous to one another 

 in their several circles. We shall here give from the 

 Horse Entomologicse his arrangement of Clairville's 

 Mandibulaia, with translations, &.c, of his terms. 



