104 TEliTIAKY INSECTS OF NORTH AMERICA. 



The family of Teniiitina is represented in the Tertiaries of Europe by 

 twenty -nine nominal species. Hagen, however, asserts that several of those 

 purporting to come from amber are in reality copal species, and this, with 

 synonyms and species merely nominal, reduces the actual number to sev- 

 enteen. It is doubtful if one of these, T. peccanse Massal., is a Termes at 

 all, and if it is, its position can not be further defined The number may 

 therefore be considered sixteen; besides this, a species has been indicated 

 without name from the English Tertiaries. 



Of these sixteen, six come from amber, belonging to three genera 

 (Calotermes two species, Termopsis three, and Termes one); six from 

 Radoboj, also of three genera (Hodotermes two species, Termes two, and 

 Eutermes two); and three from Oeningen, of two g-enera (Hodotermes two 

 species, Termes one — the same as found at Radoboj). Besides these there 

 is a Calotermes from Rott, and a Hodotermes from Schossnitz 



The section comprising the genera having a branched scapular vein is 

 therefore represented by eleven species (Calotermes three, Termopsis 

 three — from amber only, Hodotermes live), while the section with simple 

 scapular has only five species (Termes three, Eutermes two). The nominal 

 and doubtful species (and, it might be added, most of the synonyms) fall 

 into the latter section, and should doubtless increase it somewhat. As it 

 stands the first section has two-thirds of the fossil species. 



Thirteen of these sixteen species are entered in Hagen's Monographic 

 der Termiten; the others have since been published; and it is noteworthy 

 that of the eighty-four modern species contained in this monograph fifty- 

 five, or nearly two-thirds, belong to the second section; in other words, 

 only 31 per cent of the Tertiary, but 65 per cent of the i-ecent species, be- 

 long to the second section. 



The additions to the Tertiary Termite-fauna here made are in entire 

 keeping with these statistics; six species are described, of which four be- 

 long to the first, and two to the second, section, raising the number of Ter- 

 tiary species to twenty-two, or about one-fourth the number of recent 

 species. 



Of these six species, three belong to a new extinct genus, apparently 

 peculiar to America, but possibly including some of the species from the 

 European Tertiaries; another is refeiTed doubtfully, from want of sufficient 

 data, to Hodotermes, which has yielded species from Radoboj, Oeningen, 



