no 



BRITISH ICHNEUMONS. 



Segments two and three vary from 



castaneous to black 15. mklanotis, ?. 



Hind tibiae basally rufous or flavo- 



rufous. 



Segments one to three red 7. multipictus, ? . 



Segments two and three, and some- 

 times also part of fourth, red 25. EXTEN.SORIUS, ?. 



Meso- much higher than metanotum ; 



antennae apically attenuate. 

 Scutellum entirely yellow. ^ 



Space between gastrocaeli not broader 



than centre of post-petiole. 

 Femora black. 

 Hind tibiae basally flavous ; coxae 



flavous-niarked 30. PRIMATORIUS, $. 



Hind tibiae basally red J coxae black 36. FORMOSUS, $. 



Femora mostly red. 



Hind femora apically black. 



Front femora red 33. GRACILICORNIS, ?. 



Front femora partly black 35. EMANCIPATUS, ? . 



Hind femora apically red. 



Areola sub-quadrate 46. quadrialb.\tus, ? . 



Areola transverse 32. bellipes, 5 . 



Space between gastrocaeli broader 



than centre of post-petiole. 

 Segments two and three red. 



Tibiae red, centrally yellow 41. CALOSCELIS, $. 



Tibiae red, apex of hind ones black. 



Abdomen parallel-sided 43. subcylindricus, ?. 



Abdomen somewhat rounded laterally. 



Pronotum pale-marked 6. CAEDATOR, $. 



Pronotum immaculate. 



Apex of first segment often red. 



Hind tibiae basally red 44. RAPTORIUS, $. 



Hind tibiae basally yellow 34. SILACEUS, ?. 



Apex of first segment not red 42. IN.SIDIOSUS, ?, 



Segments one to three red 40. rufidens, $. 



Scutellum not entirely yellow. 



Scutellum partly flavescent 33. GRACILICORNIS, (^ . 



Scutellum more or less, and segments 



one to three, red. 



Cheeks sparsely punctate 49. vulneratorius, 9- 



Cheeks very strongly punctate 48. STIGMATORIUS, ?. 



Abdomen with some segments wholly 



or partly yellow. 

 Apex of abdomen entirely black. 

 Segment four mostly yellow. 

 Segments one to four yellow, more or 



less black basally 3. XANTHORIUS, (J. 



Segments two to four yellow, fourth 



rarely black-marked 30. PRIMATORIUS, (J. 



Segment four mostly black. 

 Segments two and three entirely 



yellow. 



Segment three transverse 41. CALOSCELIS, ^, 



Segment three sub-quadrate. 

 Margins of cheeks sub-buccate below 



base of mandibles. 

 Flagellum black 16. BUCCULENTUS, (J. 



(147). 146. 



