192 fAngiist, 



Gyll., common on spruce ; Paramemsoma melanocephahim, Hhst., not uncommonly 

 swept beside a ditch; Maltliodes atotmis, Th., common in long grass; M. hrevi- 

 collis, Payk., one specimen beaten from a hedge ; my determination of this 

 specimen is confirmed by Ganglbaiier, who says that the name nigellus, Kies., 

 falls as a synonym before brevicoUis, Payk. ; the species is twice the size of 

 atomus and intermediate in size between atomus and 2)ellucidus ; if Dr. Power's 

 specimens do not (as Fowler states) seem to differ from atomus, they are 

 evidently too small for nigellus ; Mantura rustica v. suturalis, Ws., one swept ; 

 Rhytidosomus fjMndus, TDjst., one on Populus tremula. — J. E. le B. Tomlin, 

 Stoneley, Reading : Julij Sth, 1910. 



The dis2:>ersal of shells Inj insects. — Cases of this kind have been recorded 

 fairly frequently with freshwater Molhisca, but rarely with land shells. It 

 is therefore of some interest to be able to report the abduction of a Cyclostoma 

 elegans. While botanizing this spring at the foot of the Great Doward a little 

 below Symonds Yat, my Avife called my attention to a huge humble-bee, which 

 was flying sloAvly along and apparently carrying something. On being netted 

 and examined, the bee proved to have one of its hind legs firmly wedged 

 between the shell and operculum of a live adult Cyclostoma elegnns. Any one 

 who is acquainted with this species knows how tightly and exactly the oper- 

 ciilvim fits the mouth of the shell. The association of bee and molhisc was of 

 coiirse qtiite accidental and involuntary on the part of each, and one can only 

 theorize as to how it happened. I do not imagine the Cyclostoma would be 

 carried far enovigh to lead to any definite result of colonization, but it shows in 

 what unexpected ways shells may be transported. — Id. -. July Sth, 1910. 



Tinodes dives, Pict., at Malham, Yorkshire. — On Jiuie 4th last, when atten- 

 ding an excursion of the Yorkshire Naturalists' Union, I came across the local 

 Tinodes dives in plenty on the river Whai'fe at Malham. It occurred for some 

 distance on the river banks, sitting on grass stems close to the water, the day 

 being sunny but with a somcAvhat cold wind. At one point, however, Avhere a 

 bridge crossed the river, a stone Avail ran at right angles xip to the bridge, and 

 on getting over the wall, I found an old ash stiimp overgroAvn Avitli ncAV shoots 

 and leaves against the wall close to the AA^ater, and completely sheltered from 

 the wind by the wall. The sun was shining full on it, and the stiunp was 

 "alive" with Tinodes dives, various saAv-flies, beetles, Diptera, &c. It was quite 

 new to me to learn that T. dives (or indeed any Tinodes) was such a sun-loving 

 species, but it Avas constantly flyiug and pairing all over the leafy stump. I 

 boxed some fifty dives from it alone, and left Avith the species still visiting it. 



T. dives has only once previously been recorded for Yorkshire, in June, 

 1891, when I took two specimens on the same river at Grassington, but about 

 seven miles away from the Malham locality Probably it occurs on the open 

 parts of the river for many miles — Geo. T. Pobbitt, Dalton, Huddersfield : 

 July 9th, 1910. 



Ovi2)osition of Baccha. — At noon to-day my attention Avas attracted by a 

 female Baccha obsciiripennis, Mg., hovering about a leaf of bullace, which was 



