164 [J«iy. 



almost equally lonp^ and strong' preapical bristles. Abdominal dark 

 patches small, first segment extensively greyish at sides 



.... 3. contriictifro7is Zett. 



$ . Frons at narrowest part ratlier wider than third antennal 

 joint, sometimes half as wide agiiin. Thorax dull brownish- 

 black, but iippearing more greyish when viewed from behind, and 

 then with darker stripes in front and a black patch above each wing- 

 base: hnmeri and notoplenral stripe as usual grey. Third (lower) 

 sternopleural bristle not placed as usual almost immediately beneath 

 the hind upper one, but opposite a point nearer midway between the 

 two upper ones. Abdomen verv little flattened dorsoventrally, being .;| 



as deep at the end as nt the base, grey with comparatively small tri- 

 angular dark patclies, first segment extensively greyish at the sides, 

 patches on the se(!(mil and on the third segment usnally se])ara1ed 

 by a dorsal grey line almost as wide as one of the patches, but there 

 is sometimes a darkened central stripe down this grey line on second 

 .segment ; fourth segment with a darkened central area. Front tibiae 

 with a bristle behind at middle ; middle tibiae with one anterodovsal 

 and two ptisterodorsal bristles ; hind tibiae with 1-2 anteroventral 

 bristles towanls tip, two anterodorsal and 1-2 smaller posterodorsal 

 bristles. Hind femora witl) 6 7 long anteroventral bristles on apical 

 half (the bristly hairs on the basal lialf being comparatively short), 

 and with a postevoventral row of long bristles and bristly hairs, 

 those towards the base and tip being shorter and finer, but two or 

 three about the middle of femur long and bristly. 



2. Interfrontalia extending but little more tlian half-way down 

 frons. Thorax greyish with three more or less distinct brown stripes, 

 and brownish about the middle of di.sc to a variable extent. Abdo- 

 men grey with rather conspicuous brownish patches on at least the 

 2nd or 3rd segments, visible from all points of view : ovipositor with 

 distinct terminal hairy lamellae. Legs stouter and tarsi distinctly 

 shorter and stouter than in liforoa or ■•'in-'/n,, the In'istles as in the 

 male but stronger ; hind femora with 4-5 long hairs posteroventrally 

 on basal half. 



Length about 5 mm. 



This species appears to occur fairly freely in Scotand in June, 

 Mr. Verrall having taken it in the fsle of Arran and at Tongue 

 (Sutherland), Col. \'erbury at Loch Assynt (Sutherland), and 

 Mr. A. K. J. Carter at Comrie (Perth). Col. Yerbury also caught 

 specimens on the hills round Llanganimarch Wells (l^recknock) at 

 an elevation of about 1250 feet in August 19L3. Male specimens 

 may occasionally be found with four pairs ofpostsutural dorsoceutral 

 bristles, but the.se are not difficult to distinguish from curuta by the 

 differently shaped abdomen and smaller dark patches thereon, as well 

 as by other characters mentioned under curata. Specimens without 

 the bristle in front of middle tibiae may be distinguished from 

 bnltica by the other characters in the Table. 

 9 (8) Middle tibiae without a bristle in front and front tibiae without a 

 bristle behind. Hind tibiiie with much shorter (and in male 



