BY WALTER W. FROGGATT. 
417 
insect world, was followed in 1852 by Dr. Hagen's* work deal- 
ing with the fossil termites of the same locality; after describing 
the different species he states that the climate of Europe must 
have been much warmer in the Tertiary age than at present to 
have supported such an extensive insect world, and that out of 
sixty known species of termites nearly a third of them were fossil. 
During the years 1855-60 Dr. Hagenf brought out his Monograph, 
in which he worked out all the then known species, both fossil and 
recent, among others a fossil species (Termes grandcevus) from 
England, the exact locality not being given. This work still 
retains its place as the text book on matters relating to the 
classification of the Termitidat. 
In 1861 three species were noticed by Hagen in some Sicilian 
amber obtained by Hope for the Oxford Museum.^ 
In 1878 Sterzel described another for which he formed the new 
genus Mixotermes, from the carboniferous of Lugau.§ 
In 1883 Scudder|| published an account of his studies of the 
fossil termites of the Florissant Tertiaries of Colorado; in this 
interesting paper he gives a general account of all the fossil 
termites known from other places, and describes six new species, 
forming the genus Parotermes, to contain the first three, while of 
the others one comes in the genus Hodotermes and two in 
Eutermes. 
BrongniartH has made a magnificent addition to our knowledge 
of fossil termites in his Monograph upon the study of fossil 
insects, published last year. 
* Ueber die Lebensweise der Termiten und ihre Verbreitung. Konigsb. 
Naturwiss. Unterhalt.., ii. 3, 53-75. 
t Monographie der Termiten. Linncea Entomol. x. (1855), pp. 1 and 
270; xii. (1858), 1.; xiv. (1860), 73. 
% Hagen, H.A. Entom. Weekly IntelL 10, 151, 168, London, 1861. 
§ Sterzel, on Fossil Termites. Ber. Ges. Chemn. 1878-80. 
Ii Scudder, S. H. The Fossil White Ants of Colorado. Proc. Amer. 
Acad. Arts and Sciences, 1883, pp. 133-145. 
H Brongniart, C. Recherche pour servir a 1' Histoire des Insectes Fossiles 
des Temps Primaires, &c. Bull. Soc. dTndus. 'Minerale. 1893, vii. (3), 
p. 127. 
