39G Mr. R. S. Bagnatl on new Tlnjsanoptera. 



Megallinj)s quadrkuherculatus (Bagn.), 



As shown above, the ^ examjDle referred to this species 

 proves in the lic^ht of further material to be another species. 

 Mr. Lewis captured two examples of each sex of the true 

 M. quadrituhercidafus by swee|)ing grass at Kobe on June 30th, 

 1916 — so I am ahle to charactoriz ; the male. 



^ . — As in ? . Sixth abdominal segment widened before 

 michlle and furnished with a pair of stout tubiform processes 

 curving outwards and not reaching the line of the posterior 

 margin of 7 ; 7 witii a minute tootii at each posterior angle, 

 and 8 slightly widened near middle and then produced to a 

 stout tooth before posterior angles. 



Differs from M. honoris in the coloration of the tibiae, the 

 more massive armature of abdominal segments 6 and 8, in 

 the weaker chaitotaxy of the tube, wliich is also longer in 

 this species compared to the length of head. 



Genus Bactrothrips, Karny. 

 Syn. Krinothrips, Bagn, 1918. 



On account of the pressure of the past five years, due to 

 war conditions, I am afraid tliat in my last contribution to 

 this series I erected the genus Krinothrips quite overlooking 

 Karny's Bactrothrips, though it was previously known to 

 me. Krinothrips must be regarded as a synonym of Bactro- 

 thrips^ but the description establishes the fact that Karny's 

 diagnosis was based upon a male example, the S differing 

 from the ? in exactly the same way as do c? c? of MegHhrips 

 and allied genera. 



Bactrothrips divergens (Bagn.). 



Bactrothrips longiventris, Karny, is a smaller insect than 

 B. divergens (Bagn.), and' differs in several directions, in- 

 cluding the colouring of the tibice, which are all yellowish in 

 the distal half in Karny's species. The tubiform abdominal 

 processes of the male appear to vary in size. 



I have recently received extimples of B. divergens from the 

 Imperial Bureau of Entomology (no. 16o), taken in plenty 

 on cacao in the Belgian Congo {[{. Mcvjne). 



