NEUROPTERA. ll 
Ephemeridz, and Perlide, which are aquatic in their preparatory 
states. I term the species of this division Biomorphotic insects. 
2. -Those which have quiescent incomplete pup, which, however, 
acquire the power of locomotion shortly before the assumption of the 
perfect state. This division (Subnecromorphotica) comprises the families 
Myrmeleonidze, Hemerobiide, Sialidze, Panorpide, Raphidiide and 
Mantispide.* Other arrangements might be adopted by considering 
other characters as of primary importance. The succession of the fami- 
lies proposed by Pictet appears the most natural of any hitherto pub- 
lished. The families, 1. Termitide ; 2. Psocidz ; and, 3. Perlidz, have 
the greatest relation to the Orthoptera; to these succeed the 4th family 
Ephemeride, and the 5th Libellulide ; the 6th family Myrmeleonidz, 
in the general form of the body and wings, appears to be the nearest 
to the Libellulide ; to these succeed, 7th, the Hemerobiidz ; 8th, the 
Sialidz ; 9th, the Panorpide ; 10th, the Raphidiide ; and, 11th, the 
Mantispidee, which last also manifest a near relation to the Or- 
thoptera. 
The family Termirip + is composed of the various species of 
exotic insects, known under the name of white ants, placed by Lin- 
neus in the order Aptera, on account of the apterous condition of 
* This arrangement nearly corresponds with that suggested by Latreille in his 
Hist, Nat. Gen. Ins. tom. xiii. p. 100., as more natural than that adopted in the 
body of his work. 

+ Bistiocr. Rerer. to tHE TERMITIDA. 
Fabricius, J. C. Nihere bestimmung des Geschlechts des weissen Ameisen, in 
Besch. der Berl. Ges. Natur. fr. b. i. 1775. 
Koenig. Naturg. weis. Ameis. in ditto, b. iv. 1775. 
Smeathman. Some Account of the Termites in Phil. Trans. vol. Ixxi. 1781. — 
Ditto. Separate. Lond. 1781. 8vo. — Ditto. Transl. by Rigaud. Paris, 1786. 
Swartz, in Vetensk. Acad. nya Handl. 1792. 
Sparrman. Voy. to the Cape of Good Hope, 2 vols. Lond. 4to. 1785. 
Latreille. Decouverte de Nids de Termes, in Mag. Encycl. 1797, and Bull. Soc. 
Phil. t. i. 1798. — Ditto, Hist. Nat. Insectes, vol. xiii. 
Kalm, in Scheved. Acad. Abhandl. 16. st. and Fuessl. N. Ent. Mag. 3 band. 
Besch. der Berl. Nat. Gesellsch. 1 band (on the Queen of the White Ants). 
Kollar. FBrasiliens Vorzuglich lastige Insecten. Wien. 1832. — Ditto, in Isis of 
Oken, 1833. (T. flavipes). . 
De Geer. Mémoires, vols. ili. and vii. 
Perty. Delect. An, art. Brasilia. 
