78 THE ENTOMOLOGIST. 



DESCEIPTION OF A NEW SPECIES OF ODYNERUS 

 (LEIONOTUS) FROM AUSTRALIA. 



By p. Cameron. 



Odynerus (Leionotus) hisulcatus, sp. nov. 



Black ; a small mark, rounded above, over the antennse, a broad 

 curved mark on either side of the clypeus above two marks, broad on 

 the outer side, gradually Ucirrowed on the inner side, on the pronotum, 

 a small mark on the sides of the scutellum, a small line or mark on 

 the angles of the metanotum, a large mark, longer than wide, trans- 

 verse at the base, rounded at the apex and below, on the mesopleurse 

 below the tegulfe, the apex of the latter and a band on the apex of the 

 first and second segments of the abdomen, the second broader and 

 more irregular than the first, and extending on to the ventral surface, 

 where the band is four-lobate, the outer lobes being more developed 

 than the inner, yellow. The knees and tibiae reddish testaceous, as are 

 also the tarsi, except at the base and apex. Wmgs hyaline, infuscated 

 in front and at the apex. Clypeus in male entirely yellow. Female 

 and male. Length, 12 mm. 



Head and thorax densely covered with fuscous pubescence, that on 

 the head longer and denser than it is on the thorax ; the abdomen 

 pruinose, the apical segments pubescent. Front and vertex rugosely 

 punctured, the punctures running into striations below. Clypeus 

 pyriform, longer than broad, shining, strongly but not closely punc- 

 tured ; its apex has a shallow but distinct rounded incision, the sides 

 below forming distinct triangular teeth ; above the incision there is a 

 distinct curved depression. Temples broad ; behind the top of the 

 eyes is a small yellow spot. Thorax twice longer than wide, transverse 

 in front, the sides at the base above distinctly angled, the part between 

 the angles margined. Mesonotum flattened at the apex, where there 

 are, in the centre, two, three times longer than wide, furrows or de- 

 pressions. Scutellum flat ; the post-scutellum is more prominent, 

 more rugosely punctured, and is gradually narrowed behind. Angles 

 of metanotum somewhat broadly rounded ; the metanotum is almost 

 transverse ; there is a deep distinctly defined furrow down the middle. 

 First abdominal segment cup-shaped, large, pedunculated shortly at 

 the base, narrowed compared with the second segment ; its apex is 

 slightly raised, and there is a short depression in the middle before the 

 apex. The second segment is large, narrowed at the base ; looked at 

 from the side the base above is seen to be obliquely depressed ; on its 

 basal ventral half is a distinct longitudinal central furrow ; the segment 

 is not tuberculate. The male clypeus is yellow ; it is longer than 

 wide ; its apex is roundly incised, the sides forming triangular teeth ; 

 the antennal hook is stout, black, and about three times longer than 

 wide ; the spot on the sides of the scutellum is minute, and there is 

 none on the sides of the metanotum ; it is more slender, more densely 

 pilose than the female, and the legs are of a brighter, more rufous 

 colour. 



Comes near to 0. hizunatus, Boisd. sec. Sauss. ; that species 



