448 PSYCHINA [zygaena 



2. Z. lonicerae, Esp. 28-35 mm. Antemial thickening rather 

 slender, very gradual. Abdomen deep indigo-blue. Forewings 

 very deep green ; five deep crimson spots, first pair subbasal, 

 elongate, sometimes confluent, upper of second jjair small ; ter- 

 men slightly rounded. Hind wings deep crimson ; a terminal 

 streak and cilia blue-blackish. 



England to York, N. and W. Ireland, local ; N., C, and 

 SW. Europe, WC. and N. Asia ; 6, 7. Larva resembling that 

 of Z. filipendidae : on Trifoliii/m, Lotus, Lathyrus ; 8-5. 



3. Z. trifolii, Esp. 28-35 mm. Differs from Z. lonicerae 

 as follows : antennal thickening stouter, less gradually pointed, 

 second pair of spots larger, generally confluent, sometimes also 

 confluent with lower one of first pair and with fifth, termen 

 more rounded. 



England, Ayr, N. Ireland, local ; Europe, WC. and NW. 

 Asia, N. Africa ; 6, 7. Larva resembling that of Z. filipen- 

 dulae, but pairs of black subdorsal spots often appearing 

 X-shaped, lateral spots somewhat smaller : on Trifolium and 

 Lotus ; 8-5. 



4. Z, meliloti, Esp. 24-27 mm. Differs from Z. lonicerae 

 as follows : antennal thickening shorter, less gradual, wings 

 more thinly scaled, forewings greyer, upper spot of second pair 

 usually more elongate, a sixth spot sometimes obscurely indi- 

 cated, termen more rounded, hindwings dullei", terminal streak 

 and cilia blackish. 



Hants, Dorset, Lancashire, local ; C. Europe, WC. and NW. 

 Asia ; 6, 7. Larva resembling that of Z. Jilipendidae, but 

 black subdorsal and lateral spots almost wholly obsolete : on 

 Lotus ; 8-5. The egg of this species is said to be considerably 

 larger than that of the three preceding, though the insect is 

 much smaller. 



5. Z. exulans, Hoch. 26-32 mm. Antennal thickening 

 rather short and stout, obtuse-pointed. Abdomen with dense 

 rough black hairs. Forewings thinly scaled, blackish-green or 

 deep green ; five deep crimson spots, first extending along basal 

 half of costa to above third, second subbasal, third rather small, 

 fourth and fifth large. Hindwings thinly scaled, crimson ; a 

 terminal streak and cilia blackish. 



Aberdeen, above 2000 feet, local ; mountains of N. and C. 

 Europe ; 7. Larva very dark green ; an interrupted black 

 lateral stripe marked with series of yellow transverse spots ; 

 head black : on Silene, Alchemilla, Trifolium, etc. ; 8-6. 



6. Z. pilosellae, Esp. {minos, Fucsl. ; nuhigena, Ld.) 27-31 



