308 Mr. F. Smith's Descriptions 



labrum concealed. The thorax oval; the collar transverse 

 and linear; the scutellum transverse; the metathorax 

 short, and truncate posteriorly ; the superior wings with 

 one elongate marginal cell tapering to a point at the apex ; 

 three submarginal cells, the first being three-fourths of 

 the length of the second and third, the second oblong- 

 quadrate, and narrowed towards the marginal cell, the 

 third oblique, and widest at its extremity; the legs of 

 moderate length ; the posterior tibiae incrassate, slightly 

 curved and denticulate on their outer margin. Abdomen 

 subtruncate at the base, incurved and tapering to its 

 apex; in the male, the second segment is produced into 

 a compressed tubercle beneath. 



Miscothyris thoracicus. 



(Plate YI. fig. 5, and details 5a and 5b.) 



Male. Length 4^ lines. Black, an interrupted line on 

 the collar, the post- scutellum, two large spots on the 

 second segment of the abdomen, and a transverse one on 

 the apical margins of the fifth and sixth segments in the 

 middle, all orange. 



Head : the clypeus with the basal half yellowish- white, 

 a minute spot above the clypeus, the scape in front, and 

 a narrow line at the inner margin of the eyes not running 

 quite so high as the anterior ocellus, of the same colour 

 as the clypeus ; the head is finely shagreen ed and semi- 

 opaque. Thorax: sculptured similarly to the head, with 

 the scutellum shining, and sparingly punctured at its base ; 

 the post-scutellum is smooth shining orange ; the wings 

 fusco-hyaline, with their base and apex clear hyaline; a 

 central small shining triangular space at the margin of 

 the truncation of the metathorax, which is obliquely and 

 finely striate ; the tibige, tarsi and knees ferruginous ; 

 the anterior tibi^ yellow at their apex beneath, the basal 

 joint of the posterior tarsi white. Abdomen finely sha- 

 greened, two large oblong orange spots on the second 

 segment, pointed inwardly, and nearly meeting in the 

 centre; a transverse orange lunate spot on the centre 

 of the apical margin of the fifth and sixth segments. 



Hah. — Australia (Champion Bay) . 



In the British Museum. 



