ICHTHYURUS GESTROI. 



83 



the male /. discoidcdis ^) , tliat I caunot consider Dr. 

 Gestro's species as identical with Prof. Westwood's. I have 

 dedicated the new species to Marquis Doria's learned 

 assistent. 



Length about 8 mm. — Male. The head, the parts of 

 the mouth and the antennae black ; the face beneath and 

 a short line along the inner orbit of the eyes above the 

 antennae pale yellow ; the base of the mandibles pale yel- 

 low, their tip chestnut-brown; the labrum tinged with 

 brown ; the three basal joints of the antennae pale yellow. 

 The pro thorax fuscous, its margins more or less brighter; 

 the scutellum fuscous. The elytra yellow , paler towards 

 the base ; the wings almost hyaline , fuscous towards the 

 costal nervure. The legs fuscous , with the tip of the coxae 

 and the trochanters pale yellow ; at the anterior pair the 

 under surface of the femorae, at the intermediate pair the 

 whole femorae except a large fuscous patch on the outer 

 surface of the apical half, the under surface of the defor- 

 med portion of the tibiae and the apical not deformed 

 portion of the tibiae, and at the posterior pair the base 

 of the femorae pale yellow. Upper surface of the abdomen 

 yellow , the four or five basal segments fuscous , margined 

 with yellow; the apical segment fuscous. The under sur- 

 face of the body fuscous ; the segments of the abdomen 

 margined with yellow , the apical segment with a yellowish 

 stain at the base. 



The head subopaque, the face shining, verry narrow 

 between the middle of the eyes; the eyes surrounded by a 

 slightly raised line ; a longitudinal sharp carina on the 

 cheeks , curved backwards at the top ; a slightly raised 

 longitudinal carina at the vertex. The prothorax shining; 

 a row of confluent punctures near the front margin, the 

 hind margin sinuated near the lateral angles ; a curved 

 impression before the middle of the hind margin. The 



1) The female of this species seems to be unknown, at least undescribed, 

 Note» from tlie Leyden Museum. 



