The Termites of South Africa 19 



gren*s Eutermes s.lat. and c.str. He gives ample evidence to 

 prove that Eutermes has long been w^rongly applied to those species 

 with nasuti. Banks shows very clearly that the type of the genus 

 Eutermes, as erected by Heer (1849), is a termite known as 

 Microcerotermei, debilis. Consequently Microcerotermes disap- 

 pears and is replaced by Eutermes. The three South African 

 sections of this group are herein accorded generic rank tentatively. 

 Trinervitermes and Suhulitermes probably represent subgenera of 

 Nasulitermes, but Coarctotermes is without doubt independent. 

 Hamitermes is the spelling adopted by European authorities. 

 The genus was erected by Silvestri (1901) under the name 

 Amite'^mes. Subsequently Silvestri altered the spelling to Hami- 

 termes. As the change may be authorised under Article 19 of 

 the Rules of Nomenclature, Silvestri's revised spelling has been 

 followed. 



• Miroiermes slat, is a genus in which Holmgren (1912) in- 

 cluded those here given (and a number of others) as subgenera. 

 So far as the South African kinds are concerned I find it con- 

 venient to accept the distinctions as generic. 



SYNOPSIS OF GENERA. 



I,— WINGED IMAOOS* 



I. STUMP OF FOREWING PLAINLY DIFFERENT FROM 

 AND DECIDEDLY LARGER THAN THAT OF HINDWING. 



A. Radius well separated from Costa with a number of 

 oblique offsets to Costa ; Radius without strong sector-lihe 

 branches to inner margin of wing. 



(1) Media reaching to wing-tip; (yellowish insects). 



a. Media faintly chitinised; half way between R. 

 and Cu. or nearer to Cu. than R. 



(i) With Ocelli, these touching eyes. Calotermes 

 (ii) Ocelli missing. Porotermet. 



b. Media densely chitinised, close to and parallel 

 with Radius With ocelli touching eyes. 



Neotermes 



(2) Media not reaching wing tip. Small brownish in- 

 sects. M. joined to R. at half wing-length so form- 

 ing an elongated cell between R. and M. 



* Cryptotermes. 



*In this synopsis Radius is equivalent to Sub-costa of Hagen 

 and Sjostedt, Radial Sector of Holmgren and Comstock anti 

 Radius of Desneux. 



