HANSEN, H. J,: HEMIMERUS TALPOIDES WLK. 89 



we find that is agrees very much with the Heniinierus in the 

 following particulars: The shape of the hypopharynx with the 

 maxillulœ, the structure of the maxillae and particularly of the 

 labium, with the same number of joints in the maxillular and 

 labial palpi, the direction of the head and the existence of a well 

 developed »labial sternum», the shape of the 3 thoracal sterna 

 (exceedingly striking is the accordance in the shape of the coxae 

 and their articulation with the body), the want of spurs on the 

 tibiffi, the number of joints in the tarsi, the absence of a sternite 

 in the ist abdominal segment, the bending downwards and in- 

 wards on the under side of the abdominal tergites, concealing 

 the lateral margin of the sternites, in the female the sternite of 

 the 7th segment being enlarged and the 8th and 9th segment 

 reduced and concealed, in the male the sternite of the 9th seg- 

 ment being enlarged and the 8th and 9th segment very well 

 developed. 



The more essential differences between Forficula and Henii- 

 nierus are: the long cerci in the latter form, undoubtedly being 

 homologous with the forceps, the smaller number of joints in the 

 antennae in the Heniinierus, some difference in the shape of the 

 head, mandibles and maxillœ, in the shape of the thoracal seg- 

 ments, the two basal joints in the tarsi being expanded in Henii- 

 nierus etc. The anomalous propagation of Heniinierus is the 

 most considerable difference. 



Thus we obtain the following result: Hemimerus belongs to 

 the Orthoptera, constituting a seperate family very closely allied 

 to the fam. Forficulina. I will leave to an Entomologist, dis- 

 posing of a much richer collection of the genera of Forficulina 

 than we possess in our Museum, to work out diagnoses for the 

 two families, thinking that my description and figures may be 

 furnishing him for this task with sufficient materials as to the 

 Heniinierus. 



Copenhagen, medio December 1893. 



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