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new Species of Diploptera. 39 



small oval spot on mesopleurse on each side, a transverse line 

 on the scutellum, the petiole, and segments 2, 4, 5, 6, 7 of 

 the abdomen, the legs (with exception of coxse and tro- 

 chanters), ferrugineous. Wings clear hyaline, costa and 

 nervures ferrugineous. Scape beneath yellow. 



Clypeus slightly broader than long; prothorax narrow in 

 front, considerably more narrow than vertex of head, widening 

 considerably at the posterior angles ; median segment 

 slightly concave medially, rounded posteriorly. Petiole of 

 abdomen of almost even thickness throughout, slightly 

 constricted at base and apex ; second segment of abdomen 

 cup-shaped. 



Head and thorax throughout evenly and deeply punctured, 

 the abdomen more finely punctured, the mesonotum longi- 

 tudinally traversed by two shallow furrows. 



Length 10 mm. 



Hab. S. Australia; 2 $ . 



Elimus mackayensis, sp. n. 



? . Black ; two longitudinal marks on the sides of the 

 clypeus, a minute spot above the insertion of each antenna, 

 a small spot in the sinus of the eyes, a spot behind each eye, 

 the pronotum in front, posterior margin of the tegulae, the 

 transverse keel of the postscutellum, two minute spots on 

 the apex of the petiole, narrow border to apical margin of 

 each of the following abdominal segments, yellow. Mandibles, 

 the scape, second and third joints of the antennas, apex of 

 femora, tibiae and tarsi, tegulae in front, petiole of abdomen 

 at base and apex, ferrugineous. Wings clear hyaline, slightly 

 fuscous on the costa ; the stigma and nervures testaceous ; 

 second cubital cell subtriangular. 



The clypeus truncate, as broad as long, median segment 

 strongly depressed, the apical angles produced into spines; 

 petiole as long as the thorax, constricted at the ends. 



Punctured ; head and thorax deeply and evenly. Meso- 

 notum traversed longitudinally by two shallow sulci ; abdo- 

 men shining, minutely punctured. 



Length 11 mm. 



Hab. Mackay, N. Queensland (R. E. Turner). 



<J . Strongly resembles the female, but differs in the 

 following respects : — Mandibles and clypeus yellow ; terminal 

 joint of antennae bent back in a hook ; clypeus with a shallow 

 emargination at the apex ; second abdominal segment much 

 narrower than in female. 



Nearly allied to E. australis, Sauss., which it strongly 



