COLICOPTKUA. 197 



A. Antennte sub-elongate; joints 7 to 10 not transverse; labrum strongly 

 bilobed ; size larger; (^. Uradt-'ti, Bris. 



B. Antcniiffi short ; joints 7 to 10 distinctly transverse; labrum only slightly 

 bilobed ; size smaller. <^. ■•'riiitilltina, Gr. 



It may be reintirked lliat in (J. kraatzii the usual dorsal scries of 

 thoracic ])iiucturcs is soiuctiiiies reduced from tiiree to two on each 

 side ; and the al)domen, besides l)cin<;' more densely pubescent than 

 Q. sciiifillans, has tiie patches of closer hairs on eacli side of the l^ase 

 of the sepneuts more distinct, and of a <>reyish yellow colour. Q. 

 kraafzii is a rij)arian species, but (J. srintiUauH is by no means 

 exclusively so. 



Q. rij)(irii(s, Kell., lias recently been added to our list by Mr. 

 Blatch (hut. Mo. Ma;/., April, 1896, p. 80), and by ^Ir. Chitty (Knt. 

 Mo. May., June, ]81i(i, p. 140), and it is not improbable tiiat i^. luci- 

 dnlus, Er., will prove to be British, as it is certainly not so rare as 

 Q. kraatzii. 



Beinsi- determined to establish its claim to our list on a sounder 

 footing- than that of live examiiles, I spent many days in searching tiie 

 banks of the stream up and down for several miles, iind at last, on 

 June 17th, struck on a muddy ridge, stretching into the stream, covered 

 with a dehi'is of dead leaves, twigs, etc. On this I found our insect ; 

 procuring a sack, I took as much of the refuse home as I could carry 

 on my back. By carefully seareiiiug it through I obtained eighteen 

 more specimens. 



The insect has a very beautiful appearance as it darts about over 

 the mud and among the dchris, and in the sunshine it readily takes 

 to the wing. 



The ])anks of the stream l>y wliicii this insect occurs are very 

 prolific in beetles. Other good things that I have taken here are 

 Trechxs rnhens, PotaminnH siibsfriatus, Ancyroi)horns anrens (in 

 plenty, at Easter) ; Miillama kraatzii, and many others. 



I might mention the fact tliat the stream has i'alU'U scmie ten feet 

 since tlie iirst s})ecimens of Q. kraatzii were taken. — I)enrandestii(ir])e, 

 Chiddingfold, Surrey, June, ]8';)8. 



;]§>RACTICAL HINTS. 

 Field Work for August and September. 



By J. W. TUTT, F.E.S. 



1. — The morning twilight in Se])tember is better than the evening 

 twilight to capture spJiin.r convolnili, at the blossoms of petunias. 



2. — During August, the bedstraw daJiiim rcrum and (i. moHuifo 

 siiould be searcht'd with a hunp, after (hisk. for hirvie of ( lio('roea)i\pa 

 jwrrellufi. 



3. — In late August, the small willows that fringe the sides of 

 ditches, streams and railway banks should be carel'nlly searched i'or 

 larv5\3 of Siiicrint/iKS orc/ir^tas. S.jwpiifi, ('crura vinuln, I'ti/odoiitis 

 palpina, Xotodoiita zirzar, etc. 



•t. — In early September, alder is one of the best jiayiug trees to beat 

 for larviu. Visions of the line larva of I'vrura In'rusjn's are always 

 well to the fore. 



f). — Tiie larvio of Sjii/asonui iirlirae sliould be searched for in 



