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point of attachment of the wings, which character might be 

 in favour classing them with Teleopsis Rond. Although 1 

 have no Teleopsis for comparison, 1 consider the seta named 

 not to be homologous to the seta in Teleopsis Rond. The 

 reason why I hold this opinion is that in one of the species, 

 D. varians m., at least, there is yet a second seta situated 

 anteriorly to the point of attachment of the wings, and 

 which more probably corresponds to the seta of Teleopsis, as 

 Van der Wulp clearly states that in Teleopsis sijkesii the seta 

 is placed anteriorly to the point of attachment of the 

 wings. Besides, in different species of Teleopsis, according to 

 drawings of Westwood and Van d e r W u 1 p, we are dealing 

 with strongly developed spines, usually distinctly coloured, 

 and not with setae; that is why I consider it necessary to 

 classify D. varians m. with Diasemopsis R o n d. 



The seta situated on the notum more medially from the 

 point of attachment of the wings occurs in all my specimens 

 of Diasemopsis, it is, therefore, unexplainable why it is not 

 mentioned by other authors. It must be admitted, however, 

 that these setae easily break off, just as the scutellar setae 

 do. They might have been present in species described before 

 as well, but they are not mentioned in the specific diagnosis. 

 It is, therefore, impossible to state correctly which of the 

 species described before belong to Diasemopsis Rond., and 

 what generic characters, except- scutellar setae, appartain to 

 this genus. In my specimens there is one more general cha- 

 racter — the absence of spines laterally to the mouth. In all 

 the specimens the lateral spines are short and blunt, but the 

 setae on the eyestalks, excepting D. varians m., are strongly 

 developed. Distal spines on the hind femora are absent. Se- 

 xual dimorphism is clearly expressed in the colour of the 

 abdomen. In females the predominant colour, or the colour 

 that is, at least, present, is usually brown or brown-red, 

 whereas the males are usually quite black. The difference in 

 colour in some cases is so striking that it is sometimes dif- 

 ficult to decide whether these insects belong to the same 

 species, or to different ones. 



Amongst the D i o p s i d a e described before the genus 

 Diasemopsis was established only in two cases is the presence 

 of setae on the scutellar spines mentioned: these are D. macro- 

 phthalma Dalm. and D. signata Dalm. They must now be 



