138 MEMOIES OF THE QUEENSLAND MUSEUM. 



Male (macro pterous). — Length about 1-3 uuu. Colour and structure essentially 

 as in female, but with the longest bristles on segment 9 of the abdomen about 0-8 the 

 length ol tube. 



Measurements of allotype : — Length 1-25 mm. ; head, length 0-lSG aim., width 

 0-198 mm. ; prothorax, length 0-128 mm., width (inclusive of coxae) 0-322 mm. ; 

 pterothorax, ■width 0-326 mm. ; abdomen, width 0-341 mm. ; tube, length 0-139 mm., 

 width at base 0-066 mm., at apex 0-032 mm. 



Antennal segments : 12 3 



Length (/n) 40 49 54 



Width (/x) 34 28 25 



Total length of antenna, 0-367 mm. 



Described from three females and four males taken by sweeping foliage and 

 grass in forest at Pentland, K.Q., December 26, 1012, and January (J, 1913, by Mr. 

 A. A. Girault. 



RHYNCHOTHRIPS SOROR .'^p. nov. 



Female (7nacro/jlerous). — Length about 1-4 mm. Colour dark blackish brown, 

 with tarsi, both ends of middle and hind tibiae, distal portion and inner surface of fore 

 tibia", and third antennal segment, yellow or ochreus. 



Head 1-(I4 times as long as wide ; cheeks slightly arched, nearly parallel ; 

 lateral joortions of occiput reticulate with fine anastomosing lines ; vertex not produced, 

 nearly vertical, its front margin straight ; postocular bristles broadly capitate, two- 

 thirds as long as eyes. Eyes nearly' 0-4 as long as head, slightly wider than their 

 interval, rounded and not protruding ; ventral extent nuit-h less than dorsal, the 

 length and width equal and about 0-6 of the ventral interval, the inner posterior 

 angle about 90°. Anterior ocellus overhanging and directed forward. AntenntB 

 2-25 times as long as head, almost as in B//. dentijer (sec Proc. Ent. iSoc. ^^■ash., vol. 

 xiv, 1912, pi. vi, fig. 3), segments 7 and 8 compactly united ; sense-cones short ; 

 fornmla : 3, 0-1 ; 4, l-l + i; 5, 1-1 + i ; 6, I-l + i ; 7 with one on dorsum near apex ; 

 segments 1 and 2, and 4-8 concolourous with head, 2 i)aler at apex ; 3 ochreus, infuscate 

 apically. Mouth-cone very long, slender, e([ual in length to dorsum of head, sur- 

 passing base of jirosternum. 



Prothorax along median doisal line M<'arl\' e(|iiai in length U> heail and (inclusive 

 of coxae) 2-1 times as wide as long ; pronot um with shorf metlian thickening ; all usual 

 bristles present, pale, similar to ])o.stoculars and of about the same length. Ptero- 

 thorax with side.s rather strongly converging posteriorly. Legs moderately short and 

 stout, fore femora longer than head ; fore tarsus with a, lung, hoolscd tooth. Wings 

 clear. 



Abdomen broad anil of iiofmal structure ; tube about ()-s:{ as long as head, 

 less than twice as long as basal width, and 2-25 times as wide at base as at apex, 

 .slightly narrowed to middle and again at apex ; abdominal bristles pale, caj)itate, 

 those at ajM-x of segment 9 about lialf as long as tube; terminal bristles longer 

 than tube. 



