456 Mr. R. Shelford’s Studies of the Blattide. 
i. SPECIES DESCRIBED BY LINNZUS. 
The Linnean species are twelve in number, viz. :— 
1. Blatta gigantea, Syst. Nat. (ed. x) i, p.424, No. 1 (1758). 
2 4, wgyptiaca, op. cit. No. 2 
3. ,, surinamensis, ,,_,, No. 3. 
4,  , americana, , 4 No. 4, 
5. , =nivea ahr No. 5. 
6. , ,afriwana aie a No. 6. 
7. 4, ortentalrs, By roles No. 7. 
8.  ,, lapponica, ee No. 8. 
9), oblongata, shed Aah No. 9. 
10. Cassida petwvertand, yy p. 364, No. 18. 
if, Cee Syst. Nat. (ed, x11) 1 (2), p. 577, 
No. 19 (1767). 
12. Blatta germanica, op. cit. p. 668, No. 7. 
With the exception of nivea and oblongata all the 
species have been determined with accuracy by subsequent 
authors.*  Petiveriana and 7-guttata, originally described 
as Coleoptera, are synonymous. As regards the types, 
gigantea, xegyptiaca and africana represented by unique 
male specimens are in the Queen Ulrica collection at 
Uppsala. The Linnean Society’s collection of insects 
contains a number of Blattide, but only five of these can 
be identified by the labels in Linnzus’ handwriting as his 
types, viz., lapponica (1 2, 1 2), germanica (1 f), orrentalis 
(did); petiveriana (dais) and 7- -quttata (2). The other 
species were added subsequent to the purchase of the 
Linnean cabinet and bear labels in various handwritings ; 
moreover the collection includes no species that can pos- 
sibly be identified with oblongata and nivea. The types 
of four species ‘have still to be accounted for, viz. 
surinamensis, americana, nivea and oblongata. I have 
some reason for believing that these are in De Geevr’s 
collection. De Geer in his “Mémoires pour servir a 
histoire des insectes,” vol. iii (1773), enumerates twelve 
species of Blattidee, six of which he describes as new and 
* Brunner however in his ‘Nouveau Systéme des Blattaires,” 
p. 357 (1865), identifies Polyphaga wrsina, Burm., with africana T., 
which is incorrect, for the species are very different, 
