322 Mr. J. E. Collin's Contribution towards knowledge of 



visible as a dark stripe when viewed from behind. Femora with 

 much shorter, bristles and bristly hairs; hind femora short-haired 

 posteroventrally. Middle tibiae with no bristle beneath. Hind 

 tibiae with only 1-2 short bristly hairs behind before middle, much 

 as in personata. Ungues and jjulvilli short. Wings with postical 

 cross- vein oblique but not very sinuate; last section of discal 

 vein at least half as long again as penultimate section. Squamae 

 more equal in size but thoracal projecting beyond alar when wings 

 are folded. 



$. Distinguished from any other British species by the strong 

 pendant bristles at end of the almost hidden sixth abdominal segment 

 which intercross over the anal end of abdomen. 



Length 5-5-7 -5 mm. 



H. huccata is apparently rare in Britain. At present 

 only a single male caught by Col. C. G. Nurse at Liver- 

 mere (Suftolk) on June 29tli, 1913, can be recorded, the 

 identity of Dr. Meade's specimens from Silverdale in 

 Lancashire (Ent. M. Mag. xix, 145) being very doubtful, 

 especially in respect of the males. 



The above interpretation of Fallen's species agrees with 

 that of Zetterstedt according to the specimens in his 

 Collection at Lund. Meade was the first to record the 

 species as British (v. supra); his specimens (whatever 

 they were) were found flying in association with Andrena 

 albicans and A. fulva. The species has seldom been cor- 

 rectly identified though Stein's species is undoubtedly 

 the same. Strobl, who mentions the presence of " langen 

 aufgerichteten Borstenhaaren " on the jowls, certainly 

 had not the true buccata before him. Schnabl and Dzied- 

 zicki (Nova Acta, xcv, 1911) figured the male genitaha of 

 H. obtusa Zett., as those of this species, and do not appear 

 to have known the true buccata at all. . The specimens in 

 Kowarz's Collection were correctly named and included 

 a pair from Zetterstedt labelled " Gottlandia " and " Typ. 

 Zett." 



8. Hy. sponsa Me'gen, Beschr. Eur. Dipt, v, 147 (182G). 

 (Plate IX, fig. 7.) 



cj. Eyes rather small and very little more separated on frons 

 than in other males of this genus. Head very silvery-gre5ash. 

 Fronto-orbital bristles consisting of 6-7 pairs of long bristles on 

 front part leaving a considerable space between the hindermost 



