20 Claude Fuller 



B. Radius quite close to and parallel with Costa; simple; 



reaching to wing-tip; both Costa and Radius of equal 



development. SchedorMnotermes. 



II. STUMP OF FOREWING PLAINLY LIKE THAT OF HINB- 

 WING, ABOUT THE SAME SIZE OR BUT SLIGHTLY 

 LARGER. 



A. Radius well separated from Costa, with a number of 

 oblique offsets to Costa, and WITH SEVERAL STRONG 

 SECTOR-LIKE BRANCHES TO INNER MARGIN OP 

 WING. Eodotermes. 



B. Radius quite close to and parallel with Costa ; both C. 

 and R. of equal development. R. simple, reaching to 

 wing-tip. 



(1) Media missing as a rule; weakly developed when 

 present. Cubitus highly developed. Small brownish 

 insects ; span 15 mm. Psammotermes. 



(2) Media always present; well developed but not 

 strongly chitinised, reaching to apex of wing. 



a. Head parallel sided, somewhat elongate. Small 

 black insects ; males decidedly smaller than fe- 

 males. Eutermes. 



b. Head never parallel sided ; ( rounded or broadly 

 oval.) 



(i) Costa and Radius, yellow or orange 

 coloured ; colour contrasting with more or 

 less smoky membrane of wing. Fontanelle 

 plainly triangular. Antennre XV to XVII 

 jointed. Insects medium sized ; body 10 mm. 

 Span 38 to 45 m.m. Trinervitermes, 



(ii) Costa and Radius concolorous with wing, 

 or, if contrasting, wings clear hyaline, not 

 smoky or brownish, 

 aa. Antennae XIX .iointed. 



1. Largest kinds ; Body 16 to 20 mm. 

 Span 54 to 88 mm. Body brown and 

 relatively smooth. Wings hyaline, 

 never smoky. Macrotermes, 



2. Large kinds : Body 12 to 15 mm. 

 Span 38 to 56 mm. Body usually 

 hairy (exception T. caffrariae). 

 Bodies brown or black ; wings hya- 

 line, brown, smoky or black. 



Termes. 

 S, Medium sized : Body 10 mm. Span 

 about 40 mm. Bodies smooth, yel- 

 lowish brown. Wings hyaline 



AUodo7ite7'iyies. 

 bb. Antenna} XV to XVIII jointed. Me- 

 dium sized. Body 10 mm. Span about 

 30 mm. Bodies smooth, pale yellow to 

 yellowish brown. Wings hyaline. (Com- 

 pare with Allodo7itermes, which it much 

 resembles.) Microtermes. 



