ERIC MJOBERG, ISOPTERA. 67 



II. Antennas with 16 joints 2. 



H. kimberleyensia Mjöb. 

 III. Antennas with 15 joints. 



A. Fontanells ven^ large and rounded 3 



H. herhertensia Mjöb. 

 (Text Fig. 37 b.) 



B. Fontanelle of normal size, elongate. 



a. 13th and 14th joints of antennae twice as long as broad, fon- 

 tanelle broder and more rounded at the sides 4. 



H. lativentris Mjöb. 



b. ISth and 14th joints of antennae not twice as long as broad; 

 fontanelle more narrow, not so rounded at the sides ... 5. 



H. obtusidens Mjöb. 



Kaj 



to the Australian species of the genus Hamitennes based upon 

 the characters of the soldiers. 



I. Antennaj 17- (18-)jointed, body large, legs very long (subg. Deprano- 

 termes Silv.) (Text Fig. 35 a). 



A. Jaws very long with very broad and projecting tooth (Textfig 

 39c) 1 



H. perniger Frogg. 

 Distribution: C, W. and N. Aust- 

 ralia. 



B. Jaws shorter with triangulär tooth 2. 



H. ruhriceps Feoqg. 

 Distribution: C. Australia. 

 II. Antennae 15-jointed. 



A. Tooth of jaws sharp, pointing forwards (subg. Monodontennes Silv.). 

 1. Jaws long and sharp, tooth very long and sharp. 



a. Apical half of jaw not bent knee-like above tooth, wliich 

 is situated nearer the apex than the base 3, 



H. Hartmeyeri Silv. 

 Distribution: S. W. Australia. 

 (SiLVKSTRi, 1. c, Tab. XX, Fig. 147—153.) 



b. Apical half of jaw knee-like bent above tooth, which is 

 situated nearer the base than the apex 4. 



H. perarmatus Silv. 

 Distribution: S. W. Australia. 

 (SiLVESTRi, 1. c, Tab. XIX, Fig. 143—146.) 



I 2- Jaws short and stout, tooth broad and triangulär 5. 



, H. heterognathua Silv. 



f Distribution: S. W. Australia. 



• (SiLVESTRi, 1. c, Tab. XX, Fig. 15,7.) 



ii 



