about one-third longer than the second ; orbito-frontal bristles scarcely extending 

 lialf way down the cheeks ; thorax and abdomen similar to those in P. ruricola ; 

 legs black ; wings with the outer cross veins sinuous, and less oblique than those in 

 the other species, the first (auxiliary branch) and third veins both spinigerous ; 

 cubital appendix short. Not uncommon. 



P. TEEPIDA, Mgn. 

 Eyes bare ; palpi and antennse black, the latter with the third joint about one 

 and half times as long as the second ; cheeks ciliated neai-ly to the bottom ; thorax 

 grey, with four black stripes, the central pair being narrow ; abdomen black, with 

 grey reflections, and armed on the central segments with both marginal and discal 

 seta) ; legs black ; wings with the outer cross vein straight and very oblique, and 

 with the third longitudinal ciliated from the base to a short distance beyond the 

 little cross vein ; cubital appendix rather long. Rare ; I captured one specimen in 

 1876 near Bicester, Oxon. 



P. CUBYINEEVIS, Ztt. 



Eyes bare ; palpi yellow ; antennse with the two basal joints testaceous, the 

 third black, and fully twice as long as the second ; cheeks ciliated about half way 

 down ; thorax grey, with four rather indistinct stripes ; abdomen as in P. trepida, 

 with white reflections, and spines both on the disc and edges of the segments ; legs 

 black ; wings with the outer cross veins very oblique, and with the third vein ciliated 

 along almost its whole length ; cubital appendix short. Grenerally distributed, but 

 not common ; Mr. Billups sent me one, bred from Pcedisca sordidana. 



12.— QYMNOCH^TA, Dsv. 

 Gen. ch. — The species in this genus are of a bright golden-green 

 colour ; the forehead and face are prominent ; the eyes hairy and 

 much nearer together in the males than in the females ; the antennae 

 arc drooping, with the second joint elongated and about two-thirds 

 of the length of the third joint ; the cheeks are bare, but the chin 

 hairjr ; the abdomen is subglobose, and has both discal and marginal 

 seta); the wings have the fourth longitudinal vein bent at an acute 

 angle, and the outer cross vein placed near to the angle. 



Gr. YIEIDIS, Fin. 

 This, the only recorded British species, has the sides of the frontalia glossy 

 green, the central stripe being rufous ; the palpi and antennee are black ; the thorax 

 and abdomen are of a brilliant green colour, with sometimes a coppery tinge ; the 

 legs are black, with the bases of the femora green ; the wings have a yellowish- 

 brown tinge, and the fourth longitudinal vein has a short cubital appendix. Not 

 uncommon. 



13.— MACQUARTIA, Dsv. 



Gen. cli. — This genus contains a number of moderate or small 

 sized species, with ovoid or oblong bodies, often of a bright metallic 

 blue-black or bronze colour ; the males have the eyes approximate or 



