1889.] 237 



behaved when overtaken by the tide. It was clear that if they then left the flats 

 they went further than the margin of the harbour, for at high water very few were 

 there to be seen, while at low tide the mud where Salicomia and other salt-plants 

 grew was amply stocked. The first noticeable thing was that S. saltatoria did not 

 affect the flats far from the margin. S. lateralis, however, was plentiful where 

 spring-tides covered the mud for more than two hours at a time. As the result of 

 many observations, it appears that on feeling the flowing water, the Salda appresses 

 its femora to the body, and fixes itself along a stem or a blade of grass, which it 

 firmly holds to. In cases where the place was for some reason left for another, I 

 noticed the insect slowly crawl on the mud, under the water, to a fresh plant ; now 

 and again it happened that the water suddenly coming in, took the Salda unawares, 

 and bore it up on the surface : but it kept there no longer than until it got hold of 

 a stem or a blade, down which it slowly crawled, till near the mud, and there 

 remained. I watched one until the receding tide left, it after near an hour's sub- 

 mersion : so long as its body and surroundings were wet, it showed nothing of its 

 usual wariness and activity, and was easily taken up with the fingers ; it proved to 

 be S. saltatoria. — Jas. Eardley Mason, Alford, Lincolnshire : Jan. 2Qth, 1889. 



Hemiptera-Heteroptera in West Cornwall. — While on vacation in West Corn- 

 wall in September last, I met with the following, all near St. Ives and Hayle : — 

 Rhacognathus punctatus, L., out of a tuft of furze and heather ; Piezodorus lituratus, 

 Fab. ; Scolopostethus ericetorum, Leth. ? ; Calyptonotus lynceus, Fab., several on 

 Lelant Tonaus (sand-dunes), at roots of grasses ; Macrodema microptera, Curt. ; 

 Drymus brunneus, Sahib. ; Rhyparochromus chiragra, Fab., B. prcetextatus, 

 H.-Schaff. ; Peritrechus luniger, Schill. ; Plinthisus brevipennis, Latr. ; Stygnocoris 

 arenarius, Halm, S. sabulosus, Schill. ; Monanthia cardui, L. I beat many 

 hundreds of thistles, but got not a single individual ; all I took were from a hedge 

 of mixed vegetation. Derephysia foliaeea, Fall. ; Miris Icevigatus, L., M. calcara- 

 tus, Fall., M. holsatus, Fab. ; Megalocercea ruficornis, Fall. ; Phytocoris tilias, Fab., 

 P. longipennis, Flor, P. varipes, Boh., the last off thistles ; Oncognathus binotatus, 

 Fab. ; Calocoris bipunctatus, Fab. ; Liocoris tripustulatus, Fab. ; Lygns pabnlinus, 

 L., L. contaminatus, Fall., L. cervinus, H.-Schaff. ; Monalocoris filicis, L. ; Pithanus 

 MarTcelli, H.-Schaff. ; Chlamydatus ambulans, Fall. ; Orthotylus Scotti, Eeut. ; 

 Asciodema obsoleta, D. & S. ; Heterotoma merioptera, Scop. ; Plagiognatlius arbus- 

 torum, Fab. ; Anthocoris nemorum, L. ; Nabis lativentris, Boh., N. major, Costa, 

 N.ferus, L., N. rugosus, L. ; Salda lateralis, Fall., S.pallipes, Fab., S. saltatoria, 

 L. ; Qerris thoracica, Schum. 



In October, 1886, in the same localities I obtained, besides some of those noted 

 above : Picromerus bidens, L. ; Stenocephalias agilis, Scop. ; Dieuches luscus, Fab. ; 

 Charagochitus Gyllenhalii, Fall. ; Megalocercea erratica, L. ; Orthotylus ericetorum, 

 Fall. ; Nabis ericetorum, Scholtz. 



The paucity of individuals, especially on the heather and furze of the hills, was 

 in marked contrast to the abundance of insects there in 1886. 



Thinking that the Scilly Isles might be worth sampling, I spent two days there. 

 Any ideas I might have had as to possible abundance of something were soon dis- 



