360 Mr. R. S. Bagnall on some 



small, finely facetted. Ocelli rather large, posterior pair 

 placed immediately behind line drawn across the head at 

 the posterior margin of the eyes. Antennae separated at 

 their base, longer than head and prothorax together. Basal 

 joints cylindrical, first longer and wider than the second ; 

 three to six much elongated and mildly claviform, seven and 

 eight fusiform. Third joint twice the length of basal joints 

 together, fourth five-sixths of third, fifth three-quarters of 

 fourth, sixth a little more than two-thirds of fifth and slightly 

 less than the penultimate and apical joints together. Hairs 

 and sense-cones lightly coloured, small and inconspicuous. 

 Prothorax two-thirds the length of head, shortly and abruptly 

 raised to posterior edge. Anterior edge defined, widely 

 emarginate, and set with short inwardly directed bristles, 

 mid-lateral and posterior marginal spines also small. Disk 

 slightly rugose, more strongly rugose laterally ; the raised 

 edge wide and very strongly though evenly sculptured ; a 

 series of tubercles immediately behind this channelling and 

 two large upwardly directed tubercles forming posterior 

 angles. 



Anterior legs very massive and outwardly set with long 

 white bristles ; coxa abnormally produced, forming a genicu- 

 late horn which lies over the femur ; femur longer than the 

 head, very broad and slightly flattened, produced to a blunt 

 tooth at base within ; tibia broad and flat, granulate, armed 

 with two fairly stout teeth at apex within ; tarsus armed with 

 a long dagger-like tooth. Hind and intermediate legs simple, 

 hirsute, two or three bristles at knee especially long. Ptero- 

 thorax broader than prothorax and about as long as broad. 



Wings coriaceous, reaching to sixth abdominal segment ; 

 fringes short, especially at apices. 



Abdomen almost as broad as pterothorax and somewhat 

 heavy ; narrowing to base of tube from the sixth segment ; 

 wing-retaining bristles short. A peculiar brush-like patch on 

 lateral edges of metasternum, and similar but smaller patches, 

 composed of shorter and finer bristles, on lateral edges of the 

 abdominal segments 2 to 6, these patches diminishing in size 

 till those on segment 6 are scarcely perceptible. Spines 

 light-coloured and comparatively long, terminal hairs very 



long. Tube The apex of the ninth segment is 



ventrally produced. Dorsal surface shining and very finely 

 striate, a broad belt at base of each segment very finely 

 reticulate. 



Type. One male in British Museum (ex coll. Saunders). 



Bab. Dorey, New Guinea {Wallace). 



