594 Mr. R. S. Bagnall oti neio Tliysanoptera, 



(^ . — Smaller. Steniites 3 to 7 each with a strongly 

 transverse area much as in Baliothrips dispar, the first two 

 being the largest. 



Hah. W. Sarawak, Mt. Matang, at 1000 feet, December 

 20tli, 1913; 2 ?s and 1 J in a white flower (6^. E. 

 Bryant). 



Unfortunately imperfect. 



Suborder T U B U L I F E R A. 

 Family Phlceothripidae. 



A. Machothrips group. 



Adiajyhorotliiips ontennatus, sp. n. 



Length about 5*0 mm. 



Very like A. simplex, Bagn. ; head shorter and less thf>n 

 I'O times as long as broad, genal setae and the inter-ocellar 

 bristles distinctly longer and stronger than in simplex. An- 

 tennal joints 3 to 5 practically subeqnal^ 3 being apparently 

 shorter than 4 (approximately 21 : 23 : 22, instead of 

 29 : 26 : 21 in simplex), Male smaller, with the head com- 

 paratively longer, and the tube only about I'lo times the 

 length o£ the head as compared with 1'3 times the length in 

 the female. A distinct wart at extreme apex of each fore- 

 tibia within. 



Hah. W. Sarawak ; 1 ? , Mt. Matang, at 1000 feet, 

 from under b;irk of dead tree, Dec. 7, 1913, and 1 ^ , Quop, 

 March 28th, 19 14 ( G. E. Bryant). Mr. Bi yant also collected 

 examples of A. siiiip^ex from both localities. 



B. Triciiothrips group. 



Genus Tetracanthothrips, nov. 



Comes in Trichothrips group. Size small. Head broader 

 than long, cheeks arcuate, narrowed to base, and armed with 

 short strong spines. Mouth-cone .... Antennae .... 



Prothoracic setae very long. Fore-coxce with one long 

 strong seta and a few shorter ones. Anterior margin of 

 mesonotum armed on each side with two stout finger-like 

 spines and otiier smaller ones. Tube normal in shape, but 

 with distinct though somewhat weak longitudinal carinations 

 basally. 



The spine-like mesonotal processes are a peculiar feature. 



Type. Tetracanthothr ips horneensis, m. 



