fTnoniiiLiuM 



black. Hindwings hyaline] costa yellow; veins, triangular 

 spot on npper part of transverse vein, and tcrmen black. 



5. England to Stafford, Westmoreland, local ; C. and S. 

 Europe, Asia Minor, N. America; 6, 7. Larva ochreous- 

 whitish, pinkish - tinged : head rod - brown ; plate on 2 

 brownish-tinged: in bark of oak; 8-5, but sometimes living 

 two years. 



6. T. myopiforme, Bhh. 17-21 mm. Head with white 

 vertical bar beforo each eye. Abdomen with red band on 

 4 ; anal tuft black. Forewings hyaline ; costal and dorsal 

 streaks, veins, a' thick bar on transverse vein, and terminal 

 fascia narrowed to tornus purple-black. Hindwings hyaline ; 

 veins, a triangular spot on upper part of transverse vein, and 

 tcrmen black. 



England" to York, local ; C. and SK. Europe ; 6-8. Larva 

 ochreous-whitish, pinkish-tinged ; head red-brown ; plate of 2 

 brown-tinged: in bark of apple, pear, and 1'yrus aumvparia ; 

 8-6. 



7. T. culiciforme, L. 23-28 mm. Differs from T. myopiforme 

 as follows: palpi beneath reddish-orange; forewings towards 

 base mixed with orange. 



Britain to Caledonian Canal, S. Ireland, local; N. and C. 

 Europe, Asia Minor, N. Asia; 6, 7. Larva ochreous-whitish; 

 head rod-brown ; plate of 2 yellow-brownish : in stems of birch ; 

 8-5. 



8. T. formiciforme, E.*/>. 20-2.'! mm. J lead with white vertical 

 bar before each eye. Palpi beneath reddish-orange. Abdomen 

 with 2 and 3 yellow-sprinkled, 4 red. Forewings hyaline; 

 costal and dorsal streaks violet-black mixed with orange-red ; 

 veins and a bar on transverse vein black ; terminal fascia 

 narrowed to tornus red. Hindwings hyaline; veins, a spot on 

 upper part of transverse vein, and tcrmen black. 



England to York, local ; N., C, and SE. Europe ; 6. Larva 

 whitish ; head brown ; plate of 2 yellow-brownish : in stems of 

 Salix viminalis and S. alba ; 8-5. 



!). T. ichneumoniforme, F. 17-20 mm. Face yellow-whitish 

 on sides or wholly. Abdomen with more or less developed 

 yellow rings on all segments. Forewings hyaline ; costal and 

 dorsal streaks, veins, a bar on transverse vein, and ternien dark 

 fuscous; dorsal streak anteriorly red-mixed, broader on posterior 

 half; bar red-margined posteriorly; terminal fascia dull red. 

 Hindwings hyaline ; veins, a spot on upper part of transverse 

 vein, and tcrmen dark fuscous. 



