ö4 ICHTHYURUS GESTROI, 



elyka narrowed ; the outer margin much curved inwards 

 behind the prominent shoulders, the inner margin slightly 

 so behind the suture ; the apex rounded ; a longitudinal 

 slight impression at the middle of the broad portion , and 

 another more distinct one at the tip. The elytra for 

 about two thirds of their length covered with distinct 

 punctures. The anterior tibiae compressed and sinuated. 

 The intermediate trochanters very elongated , deeply grooved 

 at the under surface, bifurcated at the tip, the inner tooth 

 curved, compressed, slightly rounded at the apex; the 

 outer tooth hyaline , elongated , compressed and enlarged 

 at the apex ; the intermediate femorae very much inflated, 

 beneath excavated and the base armed with a compressed 

 spine obliquely rounded at the apex ; the intermediate 

 tibiae transversely dilated at the basal half; the dilated 

 portion deeply excavated beneath , its sides concave , its 

 posterior angles , especially the inner one , elongated and 

 curved inwardly; the apical half of the tibiae partly covered 

 by the dilated portion ; the first joint of the intermediate 

 tarsi elongated , longer than the tibia ; the posterior tro- 

 chanters truncated at the tip. The abdomen slender , 

 narrowed towards the apex ; the apical segment at its base 

 as broad as the hind margin of the penultimate segment, 

 not quite twice as long as broad at its base, its sides 

 convex ; the incision angular , almost reaching the centre 

 of the segment , its sides nearly straight ; beneath : the 

 under margin of the anus prominent, longitudinally grooved, 

 incised at the tip. 



Female. Differing from the male in having the face 

 above the antennae totally black, the basal half of the 

 elytra fuscous, slightly passing into bright yellow towards 

 the tip ; the legs totally fuscous ; the upper surface of the 

 abdomen bright yellow, the basal segments more or less 

 stained with fuscous ; the apical segment totally dark 

 fuscous. 



Less slender than the male. The face between the middle 

 of the eyes broader ; the longitudinal carina on the cheeks 



Notes from tlie Leyden ÜMuseum.. 



