Portzon] 



BRITISH ICHNEUMONS. 



29 



strongly remote from each other basally, the mesosternum transverse and 

 metathorax much shorter than high, whereas in Porizon it is not or but 

 sHghtly shorter than high with mesosternum longer than broad and the 

 scrobes not abnormally remote. 



Table of Species. 



(2). I. Radius forming no angle with 

 stigma, but straight and emitted 

 from margin ; inner nervure of 

 areolet somewhat elongate {Por- 

 izon, Forst.) 



(i). 2. Radius forming angle with lower 

 margin of stigma ; nervure of 

 areolet short, often punctiform. 



(4). 3. Second segment short with small 

 thyridii. Head smooth and shin- 

 ing ; thorax short with petiolar 

 area extending beyond centre ; 

 anus densely pale -pubescent ; 

 legs stout with tibiae longer than 

 metatarsi ; size small ( Cyrto- 

 phioii, Thoms.) 



(3). 4. Second segment not short; thyridii 

 large and triangular. 



(8). 5. Apical joint of maxillary palpi obso- 

 letely bisarticulate, longer than 

 penultimate; vertex not smooth. 

 Flagellum elongate, extending 

 beyond thorax and apically atten- 

 uate ; terebra short, stout and 

 strongly reflexed ; abdomen cen- 

 trally and legs red ; size large 

 {Craiophion, Thoms). 

 Centre of metathorax apically car- 

 inate ; head not posteriorly con- 

 stricted 

 Centre of metathorax not carinate ; 



head posteriorly constricted 

 Apical joint of maxillary palpi sim- 

 ple, not longer than penultimate; 

 vertex somewhat smooth. 

 Basal segment, especially in 9 , short 

 and stout ; hind tibiae hardly as 

 long as metatarsi, with external 

 setae ; femora stout and subin- 

 crassate ; petiolar area not ex- 

 tending to metathoracic centre 

 {Barycfiemis, Fbrst.) 



(g). 10. Basal segment much more slender, 

 petiole double length of post- 

 petiole ; hind tibiae longer than 

 metatarsi, with no setae; anterior 

 femora not incrassate ; petiolar 

 area reaching centre ( Lepto- 

 pygtts, Fbrst.) 



(7). 6. 



(6). 7. 



(5)- 8. 



(10). 9. 



I. EXHAU-STATOR, Fab. 



2. DIS.SIMILIS, Grav. 



3. GRAViPES, Grav. 



4. AXGUSTIPENNIS, Hlmg. 



5. CLAVivENTRi.s, Gra%>. 



6. HARPURU.s, Schr. 



