of Hemiptera Ileteroptera from Japan. 3G1 



the male, when viewed from behind, with an external spoon- 

 shaped process. 

 Length 5f-6 lines. 



Dr. St°d, who has seen this insect, says it is allied to his 

 U. JZavomaculatus, with which I have no means of comparing 

 it. But as several of the species of this genus are so similar 

 in colour and puncturing as to be scarcely distinguished from 

 each other in life, setting aside description, I was for some 

 time puzzled how to get over the difficulty, until it at last 

 struck me to examine the genital segments of the male, in 

 which evidently the easiest mode of separation lies, as may be 

 judged from the three species now described. 



I have only seen two male examples of this species. 



Urostylis annulicornis. 



Yellowish or somewhat ochreous, black-punctured, sparingly 

 clothed with short, erect, fine pale hairs. Antennce yellow; 

 third joint entirely, and apical half of the fourth and fifth 

 black. Membrane pale, with the inner margin and four streaks 

 between the nerves, extending from the base to the apex, 

 fuscous. 



Head yellow, unpunctured. Antennce as in U. striicornis, 

 except the fuscous streak on the first joint. Rostrum yellow, 

 apex black. 



Thorax. — Pronotum yellowish or somewhat ochreous, irre- 

 gularly black-punctured, the punctures somewhat more thickly 

 disposed than in U. striicornis, and finest next the anterior 

 margin. Scutellum and elytra yellowish or somewhat ochre- 

 ous, irregularly black-punctured, the puncturing similar to U. 

 striicornis. Membrane pale ; base between the two exterior 

 and inner nerve fuscous ; inner margin and the four spaces be- 

 tween the third exterior and the inner nerve fuscous, generally 

 the two outer darkest. Sternum yellowish white, unpunctured. 

 Legs yellow : thighs darker than the tibiae ; knees of all the 

 pairs black. 



Abdomen entirely yellow ; posterior margin of the last 

 genital segment above thickly clothed with long pale hairs ; 

 external process, viewed from behind, broad, flat, slightly di- 

 lated at the apex. 



Length 5|-5f lines. 



Very similar to U. striicornis ; but the difference in the pro- 

 cess attached to the last genital segment will at once determine 

 the species. 



There are two males and one female example which I can 

 with certainty refer to the above. 



