180 
G. J. FEJBRVÁRY 
Bana arvalis Nilss. s. str. 
1. Habit smaller* stout. 
2. Tibiotarsal articulation reaching 
the eye, in <$<$ about as far as nostril 
8. Tibia shorter than fore limb. 
4. Length of metatarsal tubercle 
6—times contained in length of 
tibia in $?, 8’3 — 8*8 times m the <$<$. 
5. Length of tibia about twice ((J) 
or more than twice ($) contained in 
length from snout to vent. 
6. When hind limbs bent at right 
angles to axis of body, heels reaching 
(?) or slightly overlapping ($). 
7. Biological note : when at rest, 
heels always distinctly sepèrated from 
eachother; knee far from elbow. — 
When leaping, leaps are numerous 
and short. 
B. arvalis Nilss. var. Wolterstorffi 
Fejbrv. 
1. Habit considerably larger, slen¬ 
der. 
2. Tibiotarsal articulation at least 
reaching about the nostril, the tip of 
snout, in <$<$ often exceeding the latter. 
8, Tibia generally longer than fore 
limb. 
4. Length of metatarsal tubercle 
8V 2 ~ 9 V 2 or even more times contained 
in length of tibia in $$, 972—12 times 
in the (JcJ. 
5. Length of tibia never contained 
twice in length of body (about l a / 3 —1 s / 4 
times). 
6. When hind limbs bent at right 
angles to axis of body, heels consi¬ 
derably overlapping, in more so 
than in $. 
7. Biological note : when at rest 
heels often overlapping or nearly so; 
knee reaching the elbow. — When 
leaping, leaps are but few, thus con¬ 
siderably long, as in B. agilis Thom., 
or B. graeca Blgr. 
The geographical distribution of var. Wolterstorffi Fejérv. cannot 
be accurately stated at this moment, the individuals actually at my dis¬ 
posal originating only from Budapest, the Transylvanian Counties and 
Sclavonia. The Hungarian National Museum possesses, beside Magdeburg 
specimens (No. 1992/185, leg. M. Koch, 6. IV. 1891) of Bana arvalis but 
North Kussian aDd Siberian individuals, belonging throughout to the 
typical form and agreeing with Scandinavian and German indi- 
viduals. Thus the geographical distribution of var. Wolterstorffi cannot 
nowadays be established regarding its occurrence eastwards from 
Hungary being still abundant in Transylvanian Counties. The 
Western limit remains also to be determined by future investigations ; 
Prof. Werner 1 stated the presence of Bana arvalis in the surroundings 
of Vienna, observing that these specimens agree with Magdeburg indi- 
' 
1 Üb. d. Vorkommen v. R. arvalis Nilss. in Niederösterr. &c., Zool. Anz., 
XVIII, Leipzig, 1895, p. 479—480, 
