NEMATUS CADDERENSIS. 147 



68. NEMATUS CADDERENKIS. 



Vol. I, PL IV, fig. 10, Lar. ; Vol. II, PI. I, fig. 5 <? ; 

 PI. XXIII, fig. 4, Saw. 



Nematus cadderensis, Cam., E. M. M., xii, 127 ; Fauna, 39, 44 ; 



Andre, Species, i, 184 ; Cat., 23,* 

 167. 



Antennae a little longer than the abdomen, luteous, the two basal 

 joints black ; the third, fourth, and fifth joints almost equal in length, 

 the rest short. Head bright luteous ; the ocelli brownish, labrum and 

 clypeus whitish -yellow ; antennae at the base surrounded with black. 

 Thorax bright luteous, shining, punctured, the pronotum slightly 

 paler than the mesothorax ; two (often three) black longitudinal 

 stripes are on the mesonotum ; the large white cenchri are surrounded 

 with black. Abdomen short, thick, and broad, of the same colour as 

 the thorax, the upper surface from the base to the commencement of 

 penultimate segment black ; the cerci are very short, hairy, and of a 

 pale yellow colour, the anal segment being also hairy ; the blotch is 

 pale yellow ; the sheath of the saw faintly marked with black. Legs 

 pale luteous; the coxae, trochanters, and tibiae whitish-yellow; the 

 posterior tarsi with the apex of the posterior tibiae pale fuscous; 

 claws bifid. Wings longer than the body, hyaline, iridescent, with 

 a decidedly fuscous-yellowish tinge ; the costa and stigma testaceous ; 

 nervures black ; the second recurrent nervure is received a little in 

 front of the transverse cubital. The whole body is covered with close 

 whitish down. 



The $ has the antennae entirely black, sometimes faintly fuscous at 

 the apex, shorter and thicker than in the $ , and taper considerably 

 towards the apex. The head (mouth excepted), meso- and metathorax, 

 and abdomen above, black. The wings also are shorter in proportion 

 to the body than in the other sex, and in some specimens the eyes are 

 surrounded with luteous. 



Length nearly 4 lines. 



Differs from N. glottianus in being larger, the colour 

 is much brighter, the antennae are longer and more 

 attenuate, tarsi distinctly shorter than the tibiae and 

 the spurs longer ; the centre of the frontal area is 

 deeper, that of glottianus not being hollowed out at 

 all, so that its edges are much more clearly denned, and 

 its apical corners are more rounded ; the face and 

 tarsi are paler. 



Larva. Head punctured, deep black. Feet white, 

 tips of claws black, claspers whitish-grey. The ground 

 colour of the body is slaty-grey, darker on the top, 

 probably through the food shining through. On the 



