( 365 ) 



XVI. Descriptions of sixteen new species of parasitic 

 Cynipidae, chiefly from Scotland. By P. Cameron. 



[Read July 4th, 1883.] 



Allotria mficollis, n. s. 



Black ; antennae and legs yellow ; head, prothorax, 

 breast, metapleura wholly, mesopleura at the sides, and 

 base of abdomen, red ; tegulae piceous. Wings hyaline ; 

 nervures dull yellowish. The antennae are longer than 

 the body ; 3rd joint straight and little longer than the 

 4th ; the last a little longer than the preceding ; the 

 apical joints are somewhat fuscous. Base of abdomen 

 pilose. Badial cellule one-half longer than broad, closed. 

 Length, 1| mm. Male. 



In coloration this species comes very close to A. 

 pleuralis, Cam., but that has not the mesopleura black, 

 the antennae are only yellow at the base, the radial 

 cellule is not much longer than broad, and it is also a 

 smaller species. 



Hab. Mull, in June. 



Allotria ruficeps, n, s. 



Black ; pronotum, mesopleura on lower side, and 

 breast, piceous-red ; legs reddish yellow ; joints 1 — 4 of 

 the antennae yellow, the rest piceous ; head and petiole 

 red. Wings hyaline ; nervures fuscous. The antennae 

 are longer than the body ; 3rd joint straight, distinctly 

 one-fourth longer than the following ; the last is not 

 much longer than the preceding. The radial cellule is 

 closed and not much longer than broad ; the cubital 

 nervure is traced for two-thirds of the extent of the 

 wing. The pubescence on metathorax and base of abdo- 

 men is dense. Length, 1% mm. Female. 



The radial cellule is shorter than in A.flavicornis, and 

 the shortness of this cellule easily distinguishes it from 

 A. riiftcollis, with which it has some resemblance in 



TRANS. ENT. SOC. 1883. PART IV. (NOV.) 



