Mr. B. S. Bagnall on neio Thysanoplera. 29 



twice as long as the protliovax ; sides parallel. Moiitli-coiie 

 reaching across prosternum, somewhat pointed. Eyes occu- 

 pying about one-third the length of the head, finely facetted ; 

 postocular bristles moderately long and stout. Vertex raised 

 in form of a hump. Ocelli large. Antenna3 1"5 times as 

 long as the head ; relative lengths of joints approximately : — 

 10 : 16 : -23 : 22 : 22 : 21 : IS': 13—7 and 8 broadly jointed, 

 8 narrowly pyriform, pointed apically. 



Protliorax very short and strongly transverse, at least 2'3 

 times as broad across posterior angles as long ; all bristles 

 present, long and rather stout, pointed ; postero-marginal pair 

 O'Sas long as the prothorax. Pterothorax a little wider than 

 width across fore-coxse and as long as broad. Legs normally 

 stout and long. Wings reaching to eighth abdominal seg- 

 ment, cilia smoky. 



Abdomen about as broad as tiie pterothorax, gently nar- 

 rowing from fifth segment. Tube 0*6 as long as the head, 

 slightly more than twice as long as broad at base, and twice 

 as broad at base as at apex. Terminal hairs coloured at 

 base and continued as long colourless filament^, about 0*85 

 as long as the tube. Lateral abdominal bristles yellow, long 

 and rather stout on segments 6-8 at least ; those on 9 parti- 

 cularly long and very slender (and indistinct) aj)ically, up to 

 1*7 times tiie length of the tube. 



Type. In the British .Museum of Natural History. 



Hub. Ceylon : Peradeniya, ex marginal leaf-galls of black 

 pepper [Fiper nigrum) ^ A. Kuthrrtbrd, 21, 7. 13 (Entomo- 

 logical liesearch Committee). 



(T^Jeniothrij^s (7) breuicollis, s{\ n, 



? . — Length 1*9, breadth of mesothorax O'-l mm. 



Colour of abdomen black, first segment brownish ; thorax 

 grey-brown; head yellow to yellowish-brown, cheeks darker. 

 Antennae with joints 1 and 2 yellow, 3-5 yellow, lightly 

 shaded with grey, the flftli dark(M- ; 6 chestnut-brown, rather 

 lighter at base, and 7 and 8 dark blackish-brown. 



Head only 0'9 as long as broad, and as long as the pro- 

 thorax, cheeks feebly arcuate, converging towards base. 

 Eyes occujjying about 0"34 the length of head. Ocelli 

 small, posterior pair widely separated, almost touching the 

 inside margins of eyes. Postocular bristles about as long as 

 the eye, and interocular pair oidy about 0"5 as long. An- 

 tennae Jiearly twice as long as the head ; relative lengths of 

 joints approximately :— 14 : 10 : 23 : 21 : 20 : 19 : 14 : 9. 

 Joint 2 constricted near base, '.) clavate, 4 and ') roughly 



