36 [February, 



8 concolorous with head ; 3 light yellow with apical third touched with grey- 

 brown ; 4, 5, and 6 dark grey -brown with basal half, two-fifths and one-third 

 respectively yellow ; 7 with extreme base yellowish. Wings clear, except for a 

 very faint smoky tinge about middle ; cilia darker. 



Head about 133 times as long as broad behind eyes, and l - 75 times as long 

 as the prothorax. Cheeks with a few short spines, broadest behind eyes, gently 

 arcuate and as broad before the collar-like thickening at base as across eyes. 

 Eyes finely facetted ; post-ocular bristles set well back, longer than eye and very 

 slender. Ocelli fairly large, set on a slight prominence, the posterior pair some- 

 what close to the inner margins of eyes and on a line drawn through their 

 centre ; anterior one directed forwards and protected by a pair of setae. Mouth- 

 cone reaching about 0'7 way across prosternum. 



Antennae somewhat as in H. bidens (Bagn.), about 1'65 times as long as the 

 head; joints 3 and 4 clavate, broader than any of the succeeding. Eelative 

 lengths of joints .—14 : 21 : 32 : 31 : 27 : 23 : 20 : 12 :— 3 sense-cones on 3, 4 on 4, 

 and 2 on both 5 and 6. 



Prothorax transverse, twice as broad across hind angles as long ; all setae 

 present, long and blunt, the postero-marginal ones the longest, about 0'7 the 

 median length of the prothorax. Pterothorax as long as broad, broader than 

 width across fore-coxae ; sides of metathorax narrowing to abdomen. Legs 

 somewhat short and stout. Fore-femur strongly incrassate, with a pair of 

 moderately large teeth at apex within ; fore-tibia stout and only about - 6 the 

 length of the femur, apex obliquely produced and inner margin set with a 

 broad-based tooth at about basal third ; tarsal tooth long and stout. Fore-coxa 

 with one long blunt hair and several short stout spines. Wings reaching to 

 about 7th abdominal segment, not constricted near middle ; cilia long and not 

 very closely spaced, duplicated. 



Tube 0'6 the length of head, about 2-2 times as long as broad at base, and 

 about 05 as broad at apex as at base ; terminal hairs slender, colourless 

 except at base, and a little longer than tube. Bristles on 9th segment not quite 

 as long as tube ; tergite with a pair of spine-like setae near posterior angles, 

 about - 33 the length of tube. Lateral abdominal bristles on segments 2 to 8 

 yellowish, with the exception of one pair, blunt or " knobbed," longest on 7 

 and 8. 



9 . A little larger, fore-legs less strongly incrassate and without the 

 femoral and tibial teeth; genal spines more numerous but more minute and 

 therefore less obvious. Post-ocular and prothoracic bristles apparently slightly 

 shorter ; pair of spine-like seta? on 9th abdominal tergite absent. 



Type : In Hope Collections, University Museum, Oxford. 



Hah. : Several <$ $ and one ? (slightly immature) taken by beat- 

 ing dead branches, etc., at Balsall Common, Warwickshire, with 

 PMoeothrips coriaceus, September, 1913. I owe a nice series largely to 



