446 ARKIV FÖR ZOOLOGI. BAND 1. 



Male. — Black; the following parts yellow: the lower 

 part of the clypeus, a spöt between the antennre, a stripe on 

 each sicle of the median segment, a narrow transverse line 

 at the apex of the second and a similar in the middle ab- 

 rupted one at the hind-margin of the third abdominal seg- 

 ment; dar k red-brown are the following parts: the npper half 

 of the clypeus, the inferior side of the antennse, the front- 

 side of the pronotum, the metapleuron, the inferior side of 

 the petiole and the legs except the tibiae and tarsi of the 

 posterior ones. 



The. clypeus much longer than broad nearly sixangular, 

 clothed with a very short whitish pubescence. The mandi- 

 bulae very lon g and slender, without teeth or emarginations. 

 The eyes reach the base of the mandibulas and are deeply 

 emarginated in their upper half. The longest interval be- 

 tween the eyes on the vertex as long as the 1 + 2 + the half 

 3 joints of the flagellum. The interval between the posterior 

 ocelli much longer than the distance from the eyes. The 

 front and the vertex densely punctured. The thorax den- 

 sely punctured and clothed by a very short dense whitish 

 pubescence. The petiole longer than the thorax, a little de- 

 pressed, continually tapering towards the base. The other 

 abdominal segments tapering to an acute apex. 



The wings hyaline, a little brownish along the costa and 

 towards the apex. 



Length 15 mm. Exp. 25 mm. 



Synagris Latr. 



Latreille, Hist. nat. Crust. & Insect. III, 1802, p. 360. 



Saussure, Études sur les Yespides I, III, 1852—1856. 



Saussure, Revision du genre Synagris in Mélanges hy- 

 ménoptérologiques II me fasc. (Mém. Soc. Phys. et d'IIist, nat. 

 de Geneve Torne XVII), 1863, p. 2. 



S. cornuta L. 



Saussure, Rev. genr. Synagris p. 10. 



Two males ( 3 %, 2 /i2 1891) and three females ( 22 /9 1891) 

 from Bonge. 



Of this, the most variable species of the genus Synagris, 

 Mr. Sjöstedt has brought home hve specimens. One of the 



