594 Mr. R. S. Bagnall on neto Thysanoptera. 



S. — Smaller. Steniites 3 to 7 each with a stvoiipily 

 transverse area much as in Baliothrips dispar, the tirst two 

 being the largest. 



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

 20tli, 11)13; 2 ?s and 1 c? i" a white flower (6^. E. 

 Bryant). 



Unfortunately imperfect. 



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

 Family Phlceothripidse. 



A. ]Macrothrips group. 



Adiaphorothrips antennatus, sp. n. 



Lengtli about 5*0 mm. 



Very like A. simplex, Bagn. ; head shorter and less than 

 1'5 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 subeqiial, 3 being apj)arently 

 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 1"15 times the 

 length of the liead as compared with 1*3 times the length in 

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

 tibia within. 



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

 from under bark of dead tree, Dec. 7, 1913, and 1 ($ , Qiiop, 

 March 28th, 19 1.4 ( G. E. Bryant). Mr. Bryant also collected 

 examples of A. siihp^ex from both localities. 



B. Trictiothrips group. 



Genus Tetracanthothrips, nov. 



Comes in Trichothr^'pn group. Size small. Head broader 

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

 short strong spines. Mouth-cone .... Antennse .... 



Prothoracic setae very long. Fore-coxae 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. Tetracanthothrips borneensis, m. 



