1891.] 153 



ANNOTATED LIST OF BRTTISH TACniNIID.E. 

 BY R. n. MEADE. 



(ro)it i lined J'rom fage 129.) 



11.— PLAGIA, Mgn. 



Gen. ch. — "Middle-sized nigrescent species, with the outer cross 



veins of the wings extremely oblique. Eyes in some species hairy, in 



others bare ; widely separated, and with a double row of orh it o -frontal 



bristles on the frontalia in both sexes ; antennje with the second joint 



elongated, it being from one-half to two-thirds of the length of the 



third joint ; arista with the second joint slightly prolonged ; facialia 



unarmed ; ''heeks more or less deeply ciliated by a continuation of the 



orbits-frontal bristles, which in some species is prolonged quite to the 



'c;pistome ; wings with one or more of the veins setigerous, and with 



a cubital appendix ; fore tarsi of the males wath the last joint provided 



with long claws and bristles. 



Eondani divides this genus or group (Plagidce, Dsv.) into three 

 subgenera, viz., Gifrtophlceha, Blepharigejia, and Plagia, the first, which 

 has the eyes hairy, and the cheeks ciliated quite to the epistome, may 

 be looked ujion as a well marked genus, but the distinctions between 

 the other two are so slight as not to be worth notice ; Blephariqena 

 only differing from Plagia by having the cheeks rather more deeply 

 ciliated, and the middle abdominal segments with discoidal setae, which 

 characters I find to be very variable. 



1 (2) Eyes hairy {Cyrtophlaba.'RnA!) 1. ruricola, Mgn. 



2 (1) Eyes bare. 



3 (4) First and third veins setigerous 2. ruralis, Fhi. 



4 (3) Third vein only setigerous. 



5 (6) Antennffi wholly black 3. irepida, Mgn. 



6 (5) Antennae VFith first two joints testaceous 4. curvinervis, Ztt. 



P. ETJRICOLA, Mgn. 



Eyes hairy ; palpi yellow ; antennae with the first two joints testaceous, and the 

 third black, the second joint nearly as long as the third ; cheeks ciliated quite to 

 the epistome ; thorax black, covered with light grey tonientum, and having four 

 longitudinal stripes ; abdomen black, with wide, irregular, grey, transverse fascia, 

 expanded on the sides of the segments, no setffi on the middle of the second and 

 third rings, but having the median marginal spines placed at some distance from the 

 edge ; legs black ; wings with the third longitudinal vein ciliated from the base to 

 the little cross vein ; cubital appendix short. I have not seen a British specimen of 

 this species, but Walker has included it among his Tachince, the description being, 

 however, very vague. 



P. EURALIS, Fin. 



Eyes bare, palpi black with yellow ends ; antenna; black, with the third joint 



