48 ARKIV FÖR ZOOLOGI. BAND 12. N:0 15. 



apical ones, but without a smaller one corresponding to the 

 smaller third of the left jaw, basa] corner broad, black, 

 finely serrated; antennse 13-jointed, påle yellowish, basal joint 

 fairly slender, 2nd only half so long, 3rd shortest of all, 

 the following 5 broader than long, 9th— 12th longer than 

 broad, 13th more slender, elongate, rounded at tip, prothorax 

 narrow, raised in front to a ridge, saddle-shaped; legs com- 

 paratively short; abdomen rounded, dorsalplates light yellow. 

 Measurements: Length of body 4 mm, length of head 

 1,2 mm, breadth of head 0,95 mm, length of prothorax 0,2 9 

 mm, breadth prothorax 0,59 mm, breadth of abdomen l,i8 mm. 



A very typical species, 

 allied to E. fumipennis Walk . 

 butdistinct from this as well 

 as from all other Australian 

 species, in many respects. 

 The winged insect has onl\^ 

 14-jointed antennse, which is 

 the case with only one of 

 the already known species, 

 E.f^imigatusBR. But, whereas 

 this latter species has the 

 antennae in the soldier and 

 6 ^ worker 13- respectively 14- 



Text Fig. 20. a Head and prothorax of jointed, OUr newspeciesshows 



imago of E ut er mes o cellaris Mjöb. n. sp. only 12- respectively 13-join- 



b. Antenna of soldier of Eutermes / . .i u- j 



pluviaiis Mjöb. n. sp. ted antennae m the soldier and 



the worker. It is the only one 

 of the hitherto known Australian species with 13- jointed antennse 

 in the worker. In E. tumuli Frogg. the soldier has — apart 

 from many other differences — according to Froggatt only 

 12-jointed but in reality, as shown on pag. 35, 13-jointed 

 antennse, and the imago of the same species shows 16 joints 

 and the worker 15 joints in the antennse. 



The new species seems to be limited in its distribution 

 to the eastern parts of the Australian continent, being an 

 inhabitant of the rain-forests or jungles. My material contains 

 specimens from Blackal Range and Mt. Tambourine (southern 

 Queensland), Herberton, Malanda and Cedar Creek (winged 

 insects in April) within the large belt of serub of the Ather- 

 ton— Herberton tableland in North Queensland. 



