212 NEW GENERA AND SPECIES OF THYSANOPTERA 



stout spines, a lateral spine immediately behind eye larger 

 and particularly noticeable ; head very slightly and gradually 

 broadened towards basal third ; vertex produced into a conical 

 lump in front of the eyes which nearly reaches the insertion of 

 antennae. Eyes comparatively large, finely faceted, distinctly 

 bulging; post-ocular spines moderately long. 6>^^/// medium 

 sized, placed as in /. quadrihiheradata, a long spine protecting 

 the anterior one on each side. Ajitennce approximate at base, 

 inserted under vertex ; stouter than usual and only about one 

 and one-third times the length of head ; first and second joints 

 practically subequal in length, the first cylindrical, and the 

 second not so wide and narrowed to base ; third to fifth mildly 

 claviform ; sixth to eighth fusiform. Third joint three times the 

 length of second ; fourth a little more than two-thirds of third ; 

 fifth three-quarters of fourth ; sixth nearly two-thirds of fifth, 

 and two-thirds the length of the penultimate and apical joints 

 together. Sense-cones long, light, and inconspicuous ; spines 

 also comparatively long. 



Prothorax only about one and one-quarter as broad as 

 long, widened very gradually from anterior margin to mid-line, 

 and from thence to base irregularly narrowed ; spines at each 

 angle rather long and stout, and set on slight prominences; 

 spine on the outer angle of each fore-coxa conspicuously long. 

 Ptefothorax longer than broad, more than twice the width of 

 head ; a rather long lateral bristle below each anterior angle. 

 JVwgs reaching to the sixth abdominal segment, heavily 

 fringed. Legs long ; femora slightly thickened and set with a 

 few more or less long and conspicuous spines, and a series of 

 stouter spines (both long and short) on the outer edge of fore- 

 femora, especially near the base ; each fore-tibia produced to 

 a spine-set tooth at the apex within, and each tarsus armed 

 with a moderately long and stout tooth. 



Abdomen long, slender, and tapering from base to tube ; 

 about two-thirds the length of the whole insect. Tube about 

 three times as long as the ninth abdominal segment, and two- 

 thirds the length of head ; narrowing from the apical third to 

 apex; hairs encircling apex very short, and those on ninth 



