hey: list of YORKSHIRE COLEOPTERA. " 53 



Berosus signaticollis Charp. 



4. Central. — Askham Bog {H. Hutchhison). 

 Limnebius truncatellus Thorns. Common and general, 

 but very liable to be overlooked. 



1. S.E.— Brough {E.B. W.). 



4. Central. — York district ( W.C.H.). 



5. S.W.— Wakefield {E.B.W.); Hebden Bridge 

 {S. Gibson). 



Limnebius nitidus Marsh. 



2. N.E. — Scarborough {R. Lmvsoii). 



Limnebius picinus Marsh. This rare and tiny insect is often 

 very abundant at Askham Bog. 



4. Central. — Askham Bog ( IV.C.H.) ; Stamford Bridge 

 ( W. IV. Foivler). 

 Chagtarthria seminuium Herbst. 



4. Central.— Askham Bog ( IV.C.H.). 

 Note. — It is stated in SteJ)/i. III.., Jan. i, 1829, ii, 125 

 that Sperchais emarginatus Schall., had been taken near 

 York. I do not myself place much confidence in the 

 record. 



helophorina. 

 Helophorus tuberculatus Gyll. The synonymy of this 

 genus is in a state of hopeless confusion, and the species 

 are not well distinguished. The present species is a well- 

 defined one, and one of the great 'finds' of the Scar- 

 borough collectors. 



2. N.E. — Scarborougli (/?. Lawson). 

 Helophorus nubilus F. 



1. S.E.— r.ridlington Sands ( W.C.IL); Market Weighton 

 (W.C.H.). 



3. N.W. — Hebden Bridge, 1831 (.V. Gibson). 

 Helophorus aquaticus T-. This insect swarms ill all ponds 



and [)uddles. 



1. S.E. — Bridlington {W.C.II.). 



2. N.E. —Scarborough, Redcar, ik.c. {W.C.JL). 



