6 HEMICHEOA EUFA. 



Two broods occur in England ; but I believe there 

 is, as a rule, only one in Scotland. 



The difference between the two sexes is very great, 

 that in the coloration of the legs being especially note- 

 worthy. The $ is exceedingly rare. I have reared 

 females from eggs laid by virgin females. 



Common all over Britain ; the imagos appearing 

 first in May and early in June. 



Continental distribution : Sweden, Denmark, Hol- 

 land, France, Switzerland, Germany, Eussia. 



2. HEMICHROA RUFA. 

 Vol. I, PI. Ill, fig. 3, Larva. 



Tenthredo rufa, Pz., F. G.,lxxii, fig. 2; Klug., Berl. Mag.,viii, 



82, 71 ; Lep., Mon., 117, 341. 

 Hemichroa Ste., 111., vii, 55, 2 ; Cam., Fauna, 28, 2 ; Andre, 



Species, i, 85 ; Cat., 11,* 2. 

 stigma, Ste., 1. c., 56, 3. 

 Dineura rufa, Htg., Blattw., 228, 7 ; Toll., Tijd. Ent., viii, 



8993, pi. vi; Ent., 1872, 19, (1. h.) ; 



Kalt., Pfl., 608; Stein, Ent. Nach., 



1879. 

 Leptocercus rufa, Thorns., Hym. Sc., i, 77 ; Br. and Zad., 



Beob. Blattw. u. Holz. (2), 39, Taf . i, 



fig. 12 (lar.). 



Reddish ; antennae, labmm, breast, metathorax, coxae for the greater 

 part, anterior tarsi at the apex, and the whole of the posterior with 

 the apex of posterior tibise, black ; clypeus, apex of anterior femora, and 

 tibiae at base, pale white. Wings smoky, hyaline at the apex ; costa 

 fuscous ; nervures and stigma black. $ 



Length 2 4 lines. 



The only aberration I have noticed (except a slighter 

 or deeper intensity in colour) is a very small specimen 

 bred from a larva found at Bishopton in June on 

 birch, the imago appearing in August, after having 

 pupated in a cork. It is scarcely two lines in length, 

 the body is almost black, and very shining, scarcely a 

 trace of the usual red being visible ; the wings intensely 

 black, except at the apex, which is lighter in tint. 

 The transverse radial nervure is absent. 



The <? is certainly very rare, and was only recently 



