254 



[ October, 



of file tibia (as 11 to 4) and twice tlie leiigtli of tlie femur (as 11 to 5) ; the tarsal 

 joints ill diniinisliing order rank ], 2, 3, 4 subeqiial to eaeh other, 5, tiie 5tli joint 

 being about two-thirds the length of the 1st joint. Fore leg of ? subcqual in 

 length to the body ; tarsus Ig the length of the tibia, which is hardly shorter than 

 the femur ; the tarsal joints in order of diminution of length rank 1, 2 equal to 5, 

 3, 4. Ungues in every tarsus each unlike the other, narrow. In the anal-asillar 

 interspace of the fore-wing the intercalate nervure next to the anal nervure is the 

 longer. Costal angle of hind- wing acute ; neuration of the axillar region, in the 

 specimen figured, partly indistinct through maceration in fluid. Forceps — basis of 

 (? roundly excised between the insertions of tlie limbs ; the basal joint proportionally 

 shorter than in Amelropus, and immovablj' anchyloscd to the 2nd, which is the 

 longest joint. Ventral lobe of the 9th 9 segment very short, transverse and obtuse. 

 Outer caudal seise of J imago about 1-J the length of the body ; in '^ imago as 

 long as the body ; in the subimago of either sex not quite so long as tlie body. 

 Type, M. norvegicus, sp. nov. 



Meteetopus norvegicus, .vp. nov. (fig. 2). 



Iinaqo (in alcohol).— <? . Body somewhat discoloured; thorax pitch-black 

 above. Abdomen in segment 1 and segments 7 — 10 bistre-brown ; the intervening 



segments translucent, liaving the apical margin dorsally bordered narrowly with 

 umber-brown, with a median longitudinal line and an oblique linear lanceolate 

 streak on each side produced forwards from it of the same colour, so as to constitute 

 a tridentate marking, enclosing on each side of the dorsum a largo almost right- 

 angled triangular translucent space, rounded at the posterior angle, the shortest 

 side of which is at the base of the segment. From the right-angle of this triangle 

 a fine tapering blackish streak proceeds towards the middle of its hypotenuse. Seta? 

 uniformly dark grey. 



The 9 has some degree of resemblance in its general colouring to Ileptagenia 

 sulphnrea, but exhibits markings on the abdomen similar in style to the translucent 

 spaces above described of the ni;ile. 



