INTRODUCTORY PAPERS ON ICHNEUMONIDiE. 81 



§ Postero-medial area of metathorax divided into three by two distinct 

 lines ; hind tibiae ahnost entirely obscure. 



29. divisorius, T^— 8-|- lines (I). 



§§ Postero-medial area of metathorax with two indistinct lines, or none 



at all ; hind tibiae towards the base whitish yellow or straw-coloured. 



28. fossorius, 6 — 7^ lines [I, a). 



A. Gastrocaeli small (males). 



2nd and 3rd segments fulvous-red, or 3rd segment more or less in the 

 middle, or entirely black, or 2nd and 3rd fulvous ; 2nd to 4th 

 apical margins yellow. - 23. uniguttatus, 6 — 7 lines ia, I). 

 Note. — In Marshall's list A. conspurcntus is No. 24, which 

 Wesmael says has a broader abdomen than A. uniguttatus, but is very 

 like it. He further says, ' Amblypygi Europaei,' p. 40, that in the 

 course of his experience of A. uniguttatus and A. conspurcatus he 

 has noticed many specimens which are very much aHke, and gives a 

 list of three females and ten males, but will not say they all belong to 

 the same species ; still it is a remarkable coincidence that Holmgren, 

 in his ' Ichneuraonologia Suecica,' although he describes forty-three 

 species, does not mention any one of these thirteen insects. This 

 certainly seems to confirm Wesraael's opinion that they may be 

 varieties of one species. Tischbein retains A, conspurcatus as a good 

 species, with the remark, " not found here " (Birkenfeld). 



B. Gastrocaeli moderate (males). 



a. Areae of metathorax, three. . 



* Abdomen reddish ; base black. 



•t" Colour of abdomen red. - - - 37. fusorius, 8 — 10 lines, 

 ft Colour of abdomen chestnut. - - 33. repentinus, 5i — 7 lines. 

 ** 2nd and 3rd segments red, or marked with black ; 4th sometimes 

 partly red. 

 I Hind tibiae white ; apex and below the base black. 



29. divisorius, H — 8^ lines ih, I, a). 

 II Hind tibiae red ; apex black. - 30. messorius, 6 — 7 lines (a). 



Ill Hind tibiae towards the base more or less straw-coloured. 



28. fossorius, 6 — 7^ lines (I, a). 



b. Areae of metathorax, indistinctly five. 



5th segment sometimes castaneous ; tibiae semiannulated with white. 



31. mesocastanus, 5 — 7 lines (h, a). 



Section 8. — Scutellum black ; abdomen red, or red and black. 



A. Abdomen red, base black (females and males). 



a. Gastrocaeli small ; areae of metathorax, five ; legs dark. 



25. castanopygus. Si — 7 lines. 



b. Gastrocaeli rather large ; areae of metathorax, three : greater part of 



femora and tibiae red. - 32. melanocastamis, 5? — 7 lines is, I). 



B. Segments 2nd to 3rd or 4th red, or marked with black (males). 

 =;= Antennae white-ringed ; abdomen sometimes quite black. 



26. sputator, b\ — 7 lines (/, a). 

 ** Antennae not white-ringed ; gastrocaeli small. 



3. spoliator, 6 — 8 lines {t, a, I). 



C. Segments 2nd to 3rd or 4th red, or marked with black (females), 

 t Tibiae black. 



