352 



groundwater. They lived thus however in water or could at least reach 

 water, but in moist places Camhari can live quite well without being 

 submerged in water. This can, for instance, be proved by the fact 

 that the late Capt. C. E c km an at Savannah Ga. collected Camhari 

 [Blaiidingii] in the hollow trunk of a fallen tree two english miles from 

 any open water. The inner side of the carapace covering the branchial 

 chamber of these Camhari was also very hairy, so this adaption seems 

 to be common to several crayfishes with similar habits. 



Parastacus Hassleri Faxon seems to be a good fighter but when it 

 comes to a tight squeeze it sometimes saves itself by sacrificing one or 

 more of its legs. The autotomy seems nearly always to take place at 



Fig. 3. 



the joint between the second and third segments of the legs. Only 

 once have I seen this at other joints and then the reproduction seems 

 to follow rather quickly as can be seen" on Fig. 3. This shows namely 

 the normal ends of the third (III), fourth (IVj and fifth (V) pairs of legs 

 as well as the reproduced parts of corresponding legs (III, IV, V) 

 which have not yet attained either normal shape or full size. 



2. Flügelrudimente bei den Caraben. 



Von Jaroslav E,, v. L o m n i c k i , Lemberg. 



eingeg. 25. April 1898. 



Große Lauf käferarten, welche der Gattung Carahus Linn. ange- 

 hören, werden von den Entomologen schlechtweg als un geflügelt 

 betrachtet. Es wird natürlich das Fehlen des zweiten Flügelpaares 

 gemeint, da das erste Paar als Flügeldecken, welche bei allen For- 

 men groß genug sind, ja meistens ungefähr zwei Drittel der ganzen 

 Körperlänge einnehmen, wohlbekannt sind. Es wird zwar von eini- 

 gen i Formen berichtet, daß unter flügellosen, manchmal geflügelte 



1 Ludwig Ganglbauer, Die Käfer von Mitteleuropa. Wien, 1892. Im ersten 

 Bande, p. 40, spricht der Verf.: Geflügelt sind nur in sehr seltenen Fällen einzelne 

 Individuen weniger Arten [clathratus, granulatus). 



