Ielineumonidous Group Tryphonides schizodonti. 433 



Grav. et Holmgr., excl. $ ( = bigultatus, var. e, 

 Thorns.) ; = confusus, Woldst. This is a most 

 variable species and the sexes are dissimilar.] 



H. dbdominator, Eridg. The unique $ was taken by 

 Bignell at Dousland (Devon.), August 23rd, 1884, and 

 is in his collection. [This is probably no more than 

 a colour variety of H. bigultatus, though considered 

 valid by Thomson.] 



H. tarsatorius, Panz. (52.) Abundant in woods and marshes 

 in May and June, also occurs on flowers of Angelica 

 sylvcstris in the autumn ; Yorks. (Askrigg, Elliott), 

 Lines., Suffolk, Herts., Surrey, Sussex, Isle of Wight. 

 Also from Bucarest. It is said to have been bred 

 from Syrphus balteatus, Depressaria angcliella and 

 Coccinella sp. [ = insignis et exultans, Grav. et 

 Holmgr. == pulclielliLS, Desv., $ (nee Holmgr.) = 

 flavits, Desv., $ (var. c, alis areola completa, Thorns.). 

 This is the only species I know which may or may 

 not possess an areolet ; when present it is very small, 

 oblique, consisting of little more than the duplication 

 of its basal nervure ; only one $ of my fifty specimens 

 possesses it.] 



II. flavolineatus, Grav. (11.) Not very common, June and 

 August; Suffolk, Herts., Surrey, Devon. [= inter- 

 rupts, Holmgr., $ = bimaculakcs, Holmgr. $ ; nee Zett.] 



H. fissorius, Grav. (9.) Uncommon and always occurs 

 singly, May, July, and September; Kent (Hunting- 

 field, Morice), Surrey, Hants., Suffolk, Herts., 

 Gloucester. [ = punctatus, Bridg. ; nee fissorius, 

 Holmgr.] 



H. ornatus, Grav. (7.) Very uncommon, May, August, 

 and September; Suffolk (Lowestoft and South wold), 

 London (Blackheath and Plumstead, Beaumont), 

 Hants. (Lyndhurst, Adams), Isle of Wight (Ryde). 

 It has been bred from Syrphus sp. [ = frenator, 

 Desv., £ . = ornatus, Thorns., $ $. = var. ^; deplanatus, 

 Holmgr., "£"] 



H. deplanatus, Grav. (3.) In Dr. Capron's collection from 

 Surrey. It has been bred from Syrphus sp. {deplan- 

 atus, Grav. et Holmgr., excl. $ = nigricornis, Thorns., 

 £. Gravenhorst's Z differs from that of B. ornatus 

 (with which it is incorrectly synouymized by Thomson) 

 in its immaculate face, red antennae, immaculate 

 sternum, black-marked front coxae, simply white- 



