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



foUowed by a finel}^ impressed line; jaws curved inwards 

 and crossing över each other with tbe tips, the left with 

 four obtuse teetb (the lowest one the largest and sometimes 

 giving the impression of a double tootb), the right with 

 one large triangulär tooth in the middle and a large 

 rounded one further down; antennae ?-jointed, basal joint 

 stout and robust, 2nd much smaller, 3rd much longer than 

 the 2nd and more darkly coloured, 4th and following gra- 

 dually longer, rounded at the sides, lighter coloured at base 

 and tip; prothorax very broad and heart-shaped, with broadly 

 flattened sides, slightly emarginate at the anterior margin, 

 with three indistinct impressions in the middle near the 



front margin, meso- and metathorax 



/^^^ C ^^ flattened down at the sides; legs of 



/ / \ \ moderate size, claw^s darker; abdo- 



I \ \ men with more or less parallel sides, 



the segments with longer and shorter 



hairs in rows, tip rounded; cerciand 



styli small. 



Measurements: Length of body 



(with jaws) 13,5 mm, length of head 



/ U \ with jaws 6 mm, length of head 



/ /\ ) without jaws 4 mm, breadth of head 



\ ;' / ( 2,3 mm, length of prothorax 1,22 



'-- -- — i- J mm, breadth of prothorax 2,4 mm 



Text Fig. 7. Jaws of soldier breadth of abdomen 2,5 mm. 



of Calotennes paralleliceps -rTT ■, t\ ii ^ 'j. j.- r • 



Mjöb. n^ sp. Worker. DuUwhite, tips of jaws 



and a (dark) spöt in front on either 

 side of clypeus brownish-black. — Head rounded at the 

 sides and at the angles; clypeus with a broad narrow basal 

 part, the apical part semi-transparent, narrow, its side di- 

 stinctly converging towards the truncated anterior margin; 

 labrum very narrow at the base, much broader at the tip, 

 rounded, antennae 14(?)-jointed, the 3rd joint much longer 

 than the second, the 4th very short, the 5th and fol- 

 lowing very rounded, nearly circular; prothorax in shape 

 and form as in the soldier, with two indistinct darker spöts 

 in the centre near the anterior margin; abdomen somewhat 

 rounded. 



Measurements: Length of body 9 mm, length of head 

 2,5 mm, breadth of head 1,9 mm^ length of prothorax 0,86 



