ERIC MJÖBERG, ISOPTERA. 7 



inner part finely serrated. Antennae distinctly 17-jointed, 

 long and slender, hairy, 1st or basal joint stout and large, 

 broadening towards apex, 2nd shorter and more cylindrical, 

 3rd very short, three times as wide as long, 4th and 5th slightly 

 longer and broader, 6th still broader and more rounded, 7th 

 to 16th gradually longer and slender, the apical joint elongate, 

 cylindricaJ, rounded at the tip. Prothorax more than twice 

 as broad as long, heart-shaped, slightly arcuate at the anterior 

 margin, almost triincate at the hind margin, with long hairs 

 at the sides; meso- and metathorax much broader, with a 

 dark median line. Abdomen long, broadest in the middle, 



i 



Text Fig. 2. a Left jaw of soldier of Stolotermes queenslandicus Mjöb. n. sp. 

 6 Labrum » soldier » » » » » 



rounded at the apex, cerci well developed, undistinctly 4- 

 jointed, styli (J*) seemingly 1-jointed. Wings long and broad, 

 rounded at the apex, hindwings broader but shorter than the 

 forewings. Costal and subcostal nervures more or less rudi- 

 mentary; radius unibranched, running from the base towards 

 the anterior margin through the basal fourth part of the wing; 

 radius well developed, sending out about 9 transverse, more 

 or less parallel, nervures to the anterior margin, mediana 

 running through the centre of the wings, sending off about 

 6 — 8 oblique simple or branched nervures; cubitus distinctly 

 developed, with 5 — 7 oblique nervures. Hindwings with very 

 similar nervature. The margin of the wing all round with 

 scattered hairs; between radius sector and mediana several 

 fine communicating nervures forming a light network on the 

 membrane. 



