HEMIPTKRA. 173 



anterior margin towards the middle of the postero-lateral margins. 

 Coriaceous portion of the elytra with the nervures fulvous ; mem- 

 brane pitchy black. Body beneath pitchy or black, smooth, 

 shining, very minutely punctured, with the lateral margins yel- 

 low. Head with a longitudinal stripe on each side and the edges 

 of the rostral canal yellow. Legs black, with the base of the 

 thighs and generally one or two more or less distinct longitudinal 

 lines, a broad ring near the base of the tibiae and the tarsi orange. 

 Rostrum black, with a yellow streak on each side of the basal 

 joint and a dull orange one on each side of the second. Antennae 

 black, with a ring near the base of the second joint*, the base of 

 the third and the whole of the fourth joints, fulvous ; the apex of 

 the latter brownish. 



a. New Holland. Presented by Sir John Richardson, M.D. 



3. EUMECOPUS longicornis, n. s. 



E. praecedenti valde affinis, antennis longioribus, tenuioribus; 

 supra fuscus, punctatus, fulvo-lineatus, subtus piceus flavo- 

 marginatus, sulco ventrali flavo. S 9 . 

 Long. lin. 12. 



This species resembles the preceding, but has the antennae 

 longer and more slender, and the ventral furrow marked with a 

 broad pale yellow band. 



. New Holland. From Mr. Children's Collection. 

 b. New Holland. 

 Genus 18. ECTENUS, n. g. 



Head somewhat elongated and pointed in front ; central lobe 

 projecting beyond the lateral, with the lateral margins sinuated 

 about the middle. Antennae long and slender, inserted towards 

 the apex of the head ; basal joint stoutest, clavate, shorter than 

 the head but reaching beyond its apex ; second and third joints 

 equal, much longer than the first; fourth and fifth wanting. 

 Rostrum long, reaching the posterior margin of the third seg- 

 ment of the abdomen, inserted a little behind the base of the 

 antennae ; first joint not passing the base of the head ; second 

 and third very long, about equal ; fourth joint shortest. Thorax 

 hexagonal, with the postero-lateral margins shortest, the antero- 

 lateral margins indented in the middle, the lateral angles \m~ 



* The second joint of the antennae has at its base an indication of 

 an additional joint, the true second joint ; but as the division does not 

 appear to be complete, I have preferred considering the antennae as 

 four-jointed ; the fulvous ring follows immediately upon the obsolete 

 articulation. In the other two species the base of the second joint is 

 slightly thickened, but there is no indication of any division. 



