274 Ml". 1^. l'^- Tumor on 



Genus POLEMISTUS, Saus3. 

 rolemt'stus exul, sp. n. 



9 . Mniuliblcs very broad at the apex, produceil into a 

 tooili at the outor an<;lo, clypeus sli;j;htly j)nKluccd at the 

 npex, smooth. Iload narrow, the eyes just touehiui!; tlie base 

 of the nianiliblcs, diverp^fiit towards the vertex. Front very 

 lonjj, concavely hollowed ; the scape of the antennaj lonj^, 

 resting in tiie hollow, the fla<Telluni short and stout. The 

 ocelli placed on the vertex near the posterior niar;^in. A 

 row of large punctures surrounding the eyes, interrupted 

 narrowly at the base of the mandibles ; a transverse, cniargi- 

 nate carina between the eyes above the concave front, a 

 longitudinal carina running from the anterior ocellus to the 

 transverse carina, and another short one on each side, 

 separated from the eye by the row of punctures only. Pro- 

 notum very short, transverse, showing only a row of large 

 ]iunctures, the anterior margin straight, with prominent 

 angles. Mesonotum longer tlian broad, with a longitudinal, 

 median double carina, the very narrow space enclos(^d by the 

 carinaj punctured ; on each side are two longitudinal carinre, 

 each with a row of punctures on the outer side, and another 

 short arched carina above the tegula. h>cutellum broad, 

 smooth, broadly truncate at the apex, with a punctured de- 

 pression at the base divided by a very short longitudinal 

 carina; and a depressed transverse row of jtunctures at the 

 apex. Median segment longer than broad, !ibruj)tly truncate 

 at the apex, very coarsely rugose ; the surface of the trun- 

 cation concave, divided by a fine median sulca, rugulosc. 

 Abdomen short, smooth, and shining; the first segment 

 vertically truncate anteriorly, with a shoit petiole; the 

 apical segment compressed, acute. The legs smooth, not 

 spinose. 



Black ; the mandibles at the apex ferruginous ; the 

 antennae, legs, and tegulai testaceous ; the vertex of the head, 

 the thorax, and the median segment dark green-bronze. 

 AVings hyaline, nervures testaceous. 



Length ^j mm. 



JJab. Mackay, Queensland (December to April). 



Two species ordy of this genus have been described, both 

 by Sauri.sure, the localities being Madagascar and Mexico. 



Genus Paracrabro, nov. 



5? . Head very large and broad, half as wide again as the 

 thorax ; the mandibles large, very strongly tridentate at the 



