282 NEW PERMIAN INSECTS FROM BELMONT, N.S.W., 



I think it very probable that Specimen No. 25, described briefly on pp. 

 740-741 of my previous paper, belongs to this species, though I have not had 

 an opportunity of further studying the specimen. 



It does not seem possible to say anything very definite about the affinities 

 of the Permofulgoridae at present, owing to the poor preservation and incom- 

 pleteness of the specimens so far discovered. It is clear that the venation of 

 the forewing, with the exception of the elavus, is very feebly developed. This 

 is a condition not infrequently met with in the Auchenorrhyneha, but it is 

 visually associated with a considerable thickening of the membrane of the tegmen. 

 The genus Permofulgor, however, does not seem to have had a thickened tegmen, 

 and we must wait until a more perfect specimen is discovered before we shall be 

 in a position to discuss its aflinities with any certainty. 



Division STERNORBHYNCHA. 



Family PINCOMBEIDAE, n.fam. 



Small insects with broad forewings having a long, narrow elavus ending 

 about half-way along the posterior border, with two strong, sub-parallel anal 

 veins. E, M and Cui all arising not far from base from a single strong 

 principal vein, at the same point. 



Genus P i n c o m b e a, n.g. (Plate xxxiv., flg. 4; Text-fig. 2). 



Forewing with nearly straight costa, the apex almost in line with it. Sc a 

 nearly straight, unbranched vein, running close to and just above E to end up 

 on the costa about four-fifths from base. Ei and Es both unbranched, the former 

 ending up just above, the latter a little below the apex; Es arising just before 

 half-way along the wing-length. M three-branched, Ms-i-i being unbranched and 

 arising from M at about the middle of the wing, while M1+2 is forked dicho- 

 tomically considerably further distad. Cui a very strong vein running obliquely 

 downwards across the basal half of the wing; before half-way, it forks strongly; 

 the anterior branch, Cuia, arches outwards, and ends up on the posterior border 

 well beyond end of elavus; the posterior branch, Cuib, continues the straight 

 line of the basal portion of the vein, and ends up exceedingly close to Cu2. Cu2 

 a weakly formed, almost straight, furrow vein. lA and 2A very strongly 

 formed. Distal border of wing from Ei to end of elavus wide and well rounded. 

 Only two cross-veins present, viz. a short basal one (sc-r) connecting Sc with 

 E, and a longer one {r-m) distally between Es and Mi, at right angles to both. 

 An apparent cross-vein joining Cui and Cu2 basally, and very weakly formed, is 

 almost certainly the true basal piece of Cui as marked in Text-fig. 2, in which 

 case the strong stump of Cui arising from the principal vein must be actually 

 Ms, as in Paramecoptera. 



Genotype, Pincombea mirabilis, n.sp. 



The genus is dedicated to its discoverer, Mr. Torrington H. Pincombe, of 

 New Lambton, near Newcastle, N.S.W., who has been assisting Mr. Mitchell in 

 the exploration of the Belmont Beds. 



Pincombea mirabilis, n.sp. (Plate xxxiv., fig. 4; Text-fig. 2.) 



Total length 3 mm.; greatest breadth 1.2 mm. 

 A perfect specimen of a forewing, and certainly the smallest Palaeozoic insect 

 wing yet discovered. The impression is on the smooth surface of a pale grey 

 cherty shale, and is remarkably clear. Ei, Cui and the anal veins stand up as 



