ALLOTRIA CALEDONICA. 257 



body, the fourth and fifth joints curved. Radial cellule small, twice as 

 long as wide; the basal abscissa of radius half the length of the 

 second, which is curved ; cubitus very faintly traced for half the length 

 of the wing ; fringe moderately thick. $ . 

 Length scarcely 1 mm. 



Comes near to piceomaculata, but the head is 

 reddish-testaceous ; the thorax is lighter in tint ; the 

 antennae are only infuscated towards the apex, not dark 

 fuscous ; the radial cellule is much shorter and wider in 

 proportion to its length, the apical abscissa of the 

 radius being not twice the length of the second, and 

 more distinctly curved. 



Rare. Mugdoch Wood, near Glasgow. 



Sweden. 



29. ALLOTRIA CALEDONICA. 

 PL XVII, fig. 2. 



Allotria caledonica, Cam , Fauna, 88, 24. 



Castaneous, the apex of abdomen black ; legs obscure pallid testa- 

 ceous, the femora darker coloured ; antennae pallid yellow, infuscated 

 at base and towards the apical half; wings hyaline, nervures testaceous 

 Antennae as long as the body, stout, thickened towards the apex ; 

 the third joint a little longer than the fourth ; the last longer than the 

 penultimate, and slightly thinner than it. Radial cellule short, broad, 

 about one-half longer than broad ; apical abscissa roundly curved, one- 

 half longer than the second. 



Length nearly 1 mm. 



This is the smallest species with castaneous head 

 and thorax, and is easily known by the legs being 

 castaneous, those with piceomaculata, &c., being clear 

 yellow. The European A. castanea is longer, has the 

 radial cellule more elongated, the base of the antennas 

 and legs yellowish-red, the thorax is not entirely cas- 

 taneous, the pro- and median segment being red. 



Mugdoch, near Glasgow, July 27th. 



VOL. m. 17 



