104 



ARKIV FÖR ZOOLOGI. BAND 12. N:0 15. 



Measurements : Length of body with wings 8,8 mm, 

 length of body without wings 5 mm, length of head 0,8 9 mm, 

 breadth of head 0,8 4 mm, length of prothorax 0,3 8 mm, 

 breadth of prothorax 0,7 mm, length of forewing 7,2 mm, 

 breadth of forewing 1,7 9 mm, length of hindwing 7 mm, 

 breadth of hindwing 1,94 mm, breadth of abdomen 1,05 mm. 

 Soldier (Text Fig. 55). Yellow-whitish, head bright 

 rufous, jaws black. 



Head much smaller and shorter 

 than in M, serraiusYROGQ., apical part 

 of clypeus whitish, tapering on the 

 sides to the front margin, slightly pro- 

 longed in the middle; labrum not so 

 pointed as in M. serratus Frogg., but 

 more broadly rounded at tip, hairy; 

 jaws very much shorter than in the 

 species just referred to, and slightly 

 more bent, finely serrated at the inner 

 margin; antennse 14-jointed, much 

 shorter and thinner, reaching slightly 

 över the tips of the jaws, 3rd joint the 

 smallest, joints rounded and short, 

 apical joint pointed; prothorax small, 

 whitish, slightly ridged in front, taper- 

 ing from the broadly rounded anterior 

 angles to the hind margin; abdomen 

 shorter, whitish. 



Measurements: Length of body 

 with jaws 5 mm, length of head with 

 jaws 2,5 mm, length of head without 

 jaws 1,6 2 mm, breadth of head 0,8 6 mm, 

 length of prothorax 0,3 2 mm, breadth of prothorax 0,6i 

 mm, breadth of abdomen 1 mm. 



Queen. Whitish, head, thorax and legs and seven dorsal 

 chitinous small plates fuscous; abdomen cylindrical, the ven- 

 tral chitinous plates very small, lighter coloured in the middle. 

 Dimensions: Length of body 20 mm, length of ab- 

 domen 17,8 mm, breadth of abdomen 4,i mm. 



Worker. Very similar to the worker of M. Turneri 

 Frogg. and M. excisus Mjöb. 



Head longer than broad, light reddish yellow, jaws broad, 



Text Fig. 55. Head of sol 

 dier of Microcerotermes 

 parviceps Mjöb. n. sp. 



