TROCHILIUM] AEGERIADAE 565 



common; N. and C. Europe; 6, 7. Larva whitish -ochreous, 

 pinkish-tinged ; head brown : in bark of birch ; 8-4. 



2. T. spheciforme, Gem. 27-30 mm. Head wholly black. 

 Antennae with broad ochreous- white subapical band. Abdomen 

 with yellow ring on 2 ; anal tuft black. Forewings hyaline ; 

 costal and dorsal streaks, veins, a thick bar on transverse vein, 

 and broad terminal fascia narrowed to tornus violet -black. 

 Hindwings hyaline ; veins, a triangular mark on transverse 

 vein, and termen violet-black. 



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

 Larva whitish-ochreous, pinkish-tinged ; head red-brown ; plate 

 of 2 outlined with brownish : in stems of alder ; 9-5. 



3. T. andreniforme, Lasp. (allantifwmis, Wd.) 20-22 mm. 

 Head wholly black. Abdomen with yellow rings on 2 and 4 ; 

 anal tuft partly yellow. Forewings hyaline; costal and dorsal 

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

 fascia narrowed to tornus violet - black, fascia mixed with 

 yellow between veins. Hindwings hyaline ; veins, a triangular 

 mark on transverse vein, and termen violet-black. 



Kent, Gloucester and Hereford to Leicester, local and scarce ; 

 Austria, Hungary, S. Russia ; 6. Possibly the larva may feed 

 in stems of Coinnus. 



4. T. tipuliforme, Cl. 18-20 mm. Head with white vertical 

 bar before each eye and yellow ring at back. Abdomen with 

 yellow rings on 2, 4, 6, and 7, one of two last sometimes absent, 

 anal tuft black. Forewings hyaline ; costal and dorsal streaks, 

 and broad terminal fascia narrowed to tornus violet-black mixed 

 with yellow ; veins, and a thick bar on transverse vein violet- 

 black. Hindwings hyaline ; veins, a triangular spot on upper 

 part of transverse vein, and termen violet-black. 



Britain to Argyll, common; N., C., and SE. Europe, Asia 

 Minor, N. America, Australia, New Zealand, but in the two 

 latter regions (perhaps also elsewhere) artificially introduced ; 

 6, 7. Larva ochreous-whitish, sometimes pinkish-tinged ; head 

 red-brown ; plate of 2 pale brownish : in branches of currant 

 (especially Eibes nigruni) ; 8-5. 



5. T. asiliforme, JRott. (cynipiformis, Esp.) 17-25 mm. Head 

 with white vertical bar before each eye and yellow ring at back. 

 Abdomen with yellow rings on 2, 4, 6, 7, one of the two last 

 sometimes absent ; anal tuft usually partly yellow. Legs yellow, 

 tibiae with black bands. Forewings hyaline ; costal and dorsal 

 streaks and bar on transverse vein purple -black mixed with 

 orange; veins and terminal fascia narrowed to tornus purple- 



