Bombyliidae, 125 



base and some way out along the anterior margin brownish or 

 blackish tinged, the colour may be more or less saturated and more 

 or less extended; veins brown or blackish, the medial cross-vein 

 situated on the middle of the diseal cell or slightly before the middle. 

 Costa at the base with blackish brown, strong hairs at the margin 

 and depressed, yellow hairs above. Squamula yellowish with a yellow 

 fringe. Halteres yellow. 



Female. Agreeing with the male but the front broad, yellow 

 haired, the inner eye-margins parallel; the wings more hyaline, only 

 slightly tinged at the anterior margin, sometimes nearly quite hyaline. 



Length 6 — 11 mm. 



B. minor is not rare in Denmark, and has been taken in several 

 localities; Dyrehaven, Hillerød, Tisvilde, Rørvig, on the last locality 

 in great numbers ; in Jutland at Søndervig and Skagen, and on Born- 

 holm at Rønne. My dates are ^''/t — ''/s. The species occurs in woods, 

 on open sandy piaces and at the shore. I have especially taken it on 

 the flowers of Thymus serpyllum, Succisa praemorsa and Jasione 

 montana, but also on others flowers. The young larvæ were taken 

 at Hillerød in April in the cells of CoUetes daviesana. 



Geographical distribution: — All Europe; towards the north to 

 middle Scandinavia. Zetterstedt records that it frequents flowers of 

 Thymus serpyllum and other low piants. 



Remarks: — Zetterstedt (1. c. I, 190, 4) has a B. pumilus which 

 is not identical with pumilus Meig. and is as yet not recognised; he 

 records one specimen of this species as taken "in Jutlandia boreali", 

 and sent to him by Stæger; in the coUection in our Museum there 

 are specimens from Skagen which, so far as I know, originate from 

 Stæger's collection, and I think that Zetterstedt's pumilus is identical 

 with minor-, Wahlgren (Entom. Tidskr. Upsala, Årg. 28, 1907, 185) 

 also identifies pumilus Zett. with minor L. 



5. Systoeclius Loew. 



Species of somewhat small size, generally with a dense yellowish 

 pile which on the abdomen is often somewhat serially arranged. The 

 genus agrees in all main respects with Bomhylius. The head as in 

 Bomhijlius, the eyes not so narrow, touching or somewhat separated 

 in the male, well separated in the female. Antennæ inserted near to 

 each other, above the middle; their shape is as in Bomhylius, but 

 they are only three- (or four-) jointed, the terminal part being indi- 

 stinctly separated off, so that I could not assertain whether it is really 

 a separate joint or not. Mouth parts as in Bomhylius, proboscis 

 relatively longer, the maxillary palpi shorter. Thorax and abdomen 



