24 



tralia is thirteen, making a total of twenty-one orthopterous insects. Mr. 

 Tepper reports that sixty are known to him. 



Prof. Wood-Mason, Ann. Mag. Nat. Hist. July 1877, describes and 

 records new orthopterous insects of the families Phasmidse and Mantida; 

 from Northern Australia. 



Order Homoptera. — 165 is the number of Australian Cicads and 

 their allies catalogued by Mr. F. Walker (*), " List of Homopterous 

 Insects," four parts, eight plates, 12 mo., 1850-1858 ; forty-two of 

 these are referred to by name, whilst 123 are fully described ; in the 

 former are two South Australian species, figured in Eyre's expedition ; 

 and in the latter are nine, obtained at Adelaide. Though seven species of 

 thrips and scale insects are known to occur in Australia, yet so far as 

 regards published sources of information, no South Australian species has 

 been determined. 



Order Hemiptera. — Much of our information respecting the Aus- 

 tralian examples of this order is contained in the works of Dallas and 

 Walker, published by the British Museum authorities under the mislead- 

 ing titles of (*) " List of Hemiptera," 12-mo., part i., 11 pi. (1851) ; and 

 part ii., 4 pi., (1852) and (*) " Catalogue of Hemiptera Hetero- 

 ptera," 8 vols., 8-vo., 1867-1873. The latter work by Walker, is 

 supplementary to and in continuation of the former; taking 

 the two together, there are recorded 298 species belonging to 

 Australia ; of these, forty-four are South Australian. In Dallas's 

 List ten South Australian species are described, and in Walker's 

 Catalogue nineteen ; for the remaining thirteen we need to consult no 

 less than eight separate publications. These are : — Donovan, Insects of 

 New Holland ; H. Schaff, Wanz. Insects ; Erichson, Archiv f. Naturg.-, 

 vol. 8 ; Ouerin, Voy. Coquille ; Hope, Catalogue (1837) ; Serville Hist. 

 Hemiptera ; Westwood, Trans. Entomol.Soc; Stal,Ofv. K.Vet.Ak.Forb, 

 xxiii. Some of the types of the new species from this province form 

 part of the collection in the National Museum at Melbourne. 



Class Myriapoda. — The British Museum (*) " Catalogue of the 

 Myriapoda" (L856) gives a complete description of all the genera and 

 species of centipedes, millepedes, and their allies known to exist. Of 

 the 23 Australian species therein recorded, only one is with certainty 

 known to be South Australian. 



Class Arachnida.— In Koch's (t)"Arachnides Australiens" we have 

 a masterly monograph of Australian spiders. The work was commenced 

 in 1871, and up to the end of last year 21 fasiculi of 968 pages and 84- 



