NEW GENKBA AND SPECIES OF .lUSTSALIAN THYSANOI'TEHA—nOOV. 120 



Described from one female taken by sweeping, Proserpine, N.Q., November 

 2, 1912, by Mr. A. A. Girault. 



The broad wings, abrii|rtly narrowed at middle, without accessory hairs, 

 and with the subbasal bristles approximate and disposed to form a nearly equilateral 

 triangle, together with the darkly coloured antennoe and the presence of a sense-cone 

 on the inner surface of the third antennal segment, make this species readily dis- 

 tinguishable. 



HAPLOTHRIPS ANCEPS sp. nov. 



Female (nuicroplcrous). — Length about 1-4 mm. Colour blackish brown, 

 ^^-ith most of fore tibise, and all tarsi, lemon yellow ; antennal segments 3-5 yellow, 

 4 and 5 very shghtly infuscate. 



Head about I'l times as long as wide, cheeks very slightly arched ; vertex 

 sUghtly produced, the anterior ocellus overhanging, not attaining frontal costa ; 

 postocular bristles slightly more than half as long as eyes, blunt. Eyes about 0-4 as 

 long as head, narrower than their interval. Antennae of normal structure ; segment 3 

 slender and elongate, without sense-cone on inner surface ; segments 7 and 8 rather 

 closely united. Mouth -cone normal to genus. 



Prothorax smooth, all usual bristles present, blunt, the two pairs at the jiosterior 

 angles longest and about equal in length to postoculars, the others shorter ; anterior 

 marginals half the length of postoculars. Wings of fore pair narrow, sparsely fringed, 

 only slightly narrowed at middle, with about four accessory hairs ; scale and the 

 region of the three subbasal bristles shghtly browned : subbasal bristles knobbed, 

 disposed on a nearly straight line, the outer bristle much the longest. Fore tarsus 

 with a minute tooth. 



Abdomen of normal structure ; most bristles knobbed ; terminal bristles 

 distinctly longer than tube. 



Measurements of holotype : — Length 1-42 mm. ; head, length 0-192 mm , 

 width 0-175 mm. ; prothorax, length 0-144 mm., width (inclusive of coxae) 0-260 mm. ; 

 [iterothorax, width 0-312 mm. ; abdomen, width 0-324 mm. ; tube, length 0-115 mm., 

 width at base 0-058 mm., at apex 0-032 mm. 



Antennal segments : 12 3 



Length {/x) 35 46 45 



Width (/x) 33 28 24 



Total length of antenna, 0-321 mm. 



Male {macropterous). — Length about 1-2 mm. Colour and structure essentially 

 as in female ; fore tarsus with a stout, triangular tooth. 



Measurements of allotype: — Length 1-18 mm.; head, length 0-185 mm., 

 width 0-160 mm. ; prothorax, length 0-132 mm., width (inclusive of coxae) 0-257 mm. ; 

 pterothorax, width 0-258 mm. ; abdomen, viddth 0-241 mm. ; tube, length 0-115 mm., 

 width at base 0-057 mm., at apex 0-029 mm. 

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