',)8 Orthonhapha brachyceia. 



of antennæ more or less yellowish beneath at the base; second joint 

 of paipi blackisli, ratlier long. Thorax a little lighter than in the 

 male, with the stripes more distinct; yellow haired. Abdonien black, 

 first and second segments broadly yellow on the sides, second segment 

 with a triangular or subquadratic yellow spot in the black middle portion, 

 the hind margins of the segments not pale. Venter with the two first 

 segments yellow with a black middle spot, the five last segments black ; 

 pubescence mainly pale. the grey pubescence towards the apex especially 

 distinct. Legs as in the male, but the middle tibiæ more or less brownish 

 from the base some way outwards. Wings hyaline between the basal 

 spot and the middle band. 



Length 8,5 — 11 mm. 



This species is easily recognised by its black or brownish middle 

 tibiæ, and the black abdomen in the male; the design on the abdomen 

 in the female is to some degree like that of C. relicfus, but it is 

 characteristically different however, for one tliing by the absence of 

 pale hind margins of the segments, that causes the yellow spot on the 

 second segment to be quite isolated. 



C. coecutiens seems to be not uncommon in most parts of Den- 

 mark; vicinity of Copenhagen: Funen near Odense; Jutland in Greis- 

 dalen near Vejle, at Silkeborg, Frijsenborg, Horsens and Frederikshavn, 

 in the last place in great numbers; moreover it is found on Bornholm 

 in Almindingen. I have records of it from '';« — ■■* -,. 



Geographical distribution; — All Europe, and Sibiria. 



Besides the five species of Chnjsops described we have still one 

 other species in Denmark, but I am not able to determine it with 

 certainty, as I have only the male, and it certainly belongs either to 

 nigripes Zett. or lapponicus Low, both species, however, only known 

 in the female sex. My species agrees in nearly every respect with 

 Low's descriptions of the two species named. It has the upper eye- 

 lacets larger than below, the dividing line is sharp. The calli moderately 

 large, those on the yowls small. Antennæ black. Thorax brown, with 

 two grey, narrow, distant stripes and the side margin of the same 

 colour. Pubescence yellow. Abdonien black, first and second segments 

 yellow on the sides, this colour also stretching on the side margins 

 of the third segment; the hind margins of all segments yellow, wide- 

 ning to triangles in the middle, with the light falling in from behind 

 distinctly greyish. The yellow colour leaves on the second segment 

 a black spot excised triangularly behind and concave on the sides, 

 the outer hind corners stretching a little out. Venter with the three 



