ORTHOPTERA (_continued_). Fig. 1.--Xiphidium maoricum [M]. " 2.--Tenodera intermedia. " 3.--Oedipoda cinerascens. " 4.--Caloptenus marginalis. " 5.--Periplaneta fortipes. " 6.--Blatta conjuncta. " 7.--Forficesila littorea. " 8.--Deinacrida megacephala [F]. [Illustration] PLATE XVIII. ORTHOPTERA (_continued_). Fig. 1.--Acheta fuliginosa [F]. " 2.--Deinacrida megacephala [M]. [Illustration] PLATE XIX. ORTHOPTERA (_concluded_). Fig. 1.--Acanthoderus horridus. [Illustration] PLATE XX. HEMIPTERA. Fig. 1.--Cicada cingulata [F]. " 1a.--Pupa. " 2.--Cicada muta [F]. " 3.-- " iolanthe, n.s. " 3a.--Larva. " 3b.--Pupa. " 4.--Coelostoma zealandicum [M]. " 5.--Corixa zealandica. " 6.--Cermatulus nasalis. " 6a.--Larva. [Illustration] Notes. [1] For Lepidoptera I can strongly recommend "Jahncke's Patent Round Boxes" with glass lids. They may be obtained from any chemist, or from Messrs. Sharland & Co., Wholesale Druggists, Wellington. [2] Metrosideros scandens. [3] Hyperparasite is an animal parasitic in a parasite. [4] "Host" is a term applied to any animal harbouring a parasite. [5] Ovipositor, a boring instrument employed in depositing the eggs. [6] A genus of Hemipterous insects commonly seen skipping over ponds in England. [7] "n.s." is the accepted abbreviation for new species. [8] Thread-like. [9] For an extended account of these observations see "Transactions of the New Zealand Institute," vol. xxiii. (1890). [10] Metrosideros scandens. [11] Or lay eggs. [12] Scutellum: A horny plate situated on the mesonotum, usually somewhat triangular in form. [13] For life-history of this insect see page 73. [14] Mamestra composita, M. mutans, M. ustistriga, Erana graminosa, &c. [15] This genus, as represented in New Zealand, is often called Pyrameis. [16] For a more detailed account of the metamorphosis of this insect see _The Entomologist_, vol. xviii. p. 30. [17] For accounts of parasites and hyperparasites of this insect see pages 60 and 37, also _The Entomologist_, vol. xviii. p. 153. [18] On one occasion I enclosed a full-grown caterpillar of this insect in a pot of earth with a recently formed Noctua pupa, whose internal portions it immediately devoured, employing the empty shell of the unfortunate chrysalis as a cocoon. It is impossible to say whether this horrible proceeding often occurs in a state of nature. [19] The _Libellulidæ_, _Ephemeridæ_, _Perlidæ_, _Psocidæ_, and _Termitidæ_ are usually included in the _Neuroptera_. [20] One mutilated [F] specimen of this insect was sent to Mr. McLachlan, but was too imperfect to describe from. [21] For account of the earlier stages of this, or a closely allied insect, see "Transactions of New Zealand Institute," vol. xvi. p. 114. [22] This genus is frequently called Melampsalta.