126 
ined it, he wrote to me that the species was very similar to his 
maculata, yet he found one distinguishing character, and this was 
the presence on the hind tibiæ of a dorsal subapical bristle not 
found in his maculata , and he sent me some imagines and pup- 
aria of his maculata for comparison. 1 now examined all my spec- 
imens and found, that they all had this bristle, and so was also 
the case with some few specimens taken with the net. lt thus 
was sure, that we had here two well distinguished species, the 
puparia of which were also different. The distinguishing charact- 
ers of the imagines are the following: maculata has on the hind 
tibiæ, besides the apical spurs, three bristles, a dorsal at the end 
of the first third, an anterodorsal about in the middle and a sub¬ 
apical anterodorsal bristle; my species on the other hånd has four 
bristles as it, besides the above named bristles, still has a sub¬ 
apical dorsal bristle; generally the spot on the wings is distinet 
and rather well defined in this species. The puparium of my spec¬ 
ies resembles that of maculata in shape, but is distinguished by 
the absence of a median longitudinal furrow and by the presence 
of a small marginal papilla on the sides of each segment, and 
further the lateral margins are not swollen as in maculata ; it 
fully agrees with Keilin’s puparium No. 2 (Keilin 1. c.) which spec¬ 
ies thus is identical with my species. 
It thus was evident, that there are two species, probably 
hitherto mixed together under maculata Meig., one with three 
bristles on hind tibiæ and a puparium with a longitudinal median 
furrow, swollen lateral margins but no marginal papillæ, and another 
with four bristles on hind tibiæ and a puparium without longitudinal 
furrow, not swollen lateral margins but with small marginal papillæ. 
I shall add, that both species show the 
same interesting sexual character as is 
found in P. Bergenstammi; the fem¬ 
ales have the claws and pulvilli en- 
larged, the empodium is long and curv- 
Fig. 1. P. notata Zett. Last joint of , , , , • , , 
middle tarsus, showing claws, pul- ed upwards, and the hair above between 
viiii. empodium and the band-shap- the claws is large, flattened and band¬ 
ed hair above. , , . . , . , 
shaped (rig. 1); this character is as in 
Bergenstammi , most pronounced on the anterior tarsi, but still 
fully observable also on the hind tarsi. 
