ERIC MJOBERG, ISOPTERA. 



89 



bi- 



Head small, rounded; clypeus broad, rounded, apical parfc 

 witli the sides converging towards the front margin, which 

 forms a broken line; jaws triangulär with a dentition very 

 similar to the one described in ^. obtusidens Mjöb.; antennse 

 14-jointed, 4th joint the shortest, 6th and following gradually 

 becoming longer and longer, 12th and 13th nearly, 15th 

 twice as long as broad; prothorax ridged in front, tapering 

 sharply on the sides to the base, mesothorax 

 rounded on the sides; legs moderate; abdomen 

 elongate, whitish. 



Measurements: Length of body 3,7 mm, 

 length of head l,oo mm, breadth of head 0,9i 

 mm, length of prothorax 0,3 9 mm, breadth of 

 prothorax 0,49 mm, breadth of abdomen 1,22 mm: 



A distinct species, easily identified on the 

 14-jointed antennse and the very characteristic 

 shape of the jaws. It shows similarities to H, 

 heierognathus Silv. from South West Australia, 

 but the antennae have only 14 joints and 

 the jaws show different dentition, having the 

 tooth not quite so broad and not so much 

 directed forwards, and not situated so near 

 the tip. 



Numerous soldiers and workers under an 

 old log near Alice River in Cape York Peninsula. 



Text Fig. 44. 



Basal joints of 



antenna of 



Hamitermes 

 latidens Mjöb. 



Ahamitermes n. g. 



Body small, of Hamitermes-type, head small, longer than 

 broad, rounded behind; clypeus small, labrum long and broad, 

 tapering to the tip, rounded; jaws short and stout, standing 

 apart from each other, without median tooth; antennae very 

 short, 12-jointed; prothorax broad, only very slightly ridged 

 in front. 



40. Ahamitermes nidieola n. sp. 



Soldier (Text Figs. 41a, 43 b). Body whitish, head and 

 thoracic segments light yellow, jaws rufous. 



Head small, slightly tapering forwards, longer than broad, 

 rounded behind; basal part of clypeus very short, yellow, 



