Trachyphleus.] RHYNCHOPHORA. 183 
on the alternate interstices which are some- 
what convex ; anterior tibis with three teeth 
abapex . 2. , +... +... . . QT. ALTERNANS, Gyll. 
i. myrmecophilus, Seidl. Pitchy black or brownish, with the 
antenne and legs pitchy or pitchy ferruginous, very dull; head with a 
central furrow, antenne very stout; thorax with sides rounded and 
narrowed in front, very closely sculptured, and with an exceedingly 
obsolete central furrow ; elytra with well marked strize which are almost, 
if not quite, impunctate; apex of anterior tibie almost simple. L. 
23-3; Mm. 
Extremely local ; found by Mr. Moncreaff near Southsea, and recorded by him as 
at one time common at Lumps Pond, Southsea beach, at roots of grass and in sand 
holes, but the locality has been destroyed; Hastings district (Bennett and Ford) ; 
Mr. Gorham records it doubtfully from Freshwater, Isle of Wight ; according to 
Bedel it occurs under stones in May, and its name would seem to imply that it has 
been found in company with ants; it has been found in France and at the Escurial 
in Spain. 
The species is intermediate between 7’. aristatus and T. sqguamulatus, 
resembling more particularly the latter, from which it may be known by 
its stouter and more evident elytral sete, its larger eyes, laterally more 
rounded and bristly thorax, rather longer second abdominal segment, 
and less horizontal scrobes, which are directed at first rather upwards 
and then down towards the eye, and have their upper margin not 
so sharply defined. 
@. aristatus, Gyll.  Pitchy-rufous, with the head and thorax often 
darker and the elytra lighter, the latter with comparatively close and 
very distinct erect white scale-like sete ; scape of antenne stout; head 
furrowed ; thorax with the sides dilated and obtusely angled in middle, 
very closely, but distinctly, sculptured, and with a very distinct central 
furrow ; elytra subglobose, or globose-ovate, slightly rostrate and in- 
flexed at apex, with strong deeply and coarsely punctured strie, inter- 
stices finely rugose ; anterior tibiz almost simple at apex. L. 25-3 mm. 
Sandy and chalky places; in moss and at the roots of Lotus corniculatus; not 
common ; Hampstead, Micklebam, Shirley, Faversham, Coombe and Birch Woods, 
Merstham (Surrey) ; New Forest; Portsdown, near Southsea, on chalk ; Scotland, 
very local, Solway district. 
The castaneous or rather bright rufo-piceous elytra, strongly punctured 
striz, and very stout white erect sete, together with the shape and 
sculpture of the thorax, will easily distinguish this species. 
T. squamulatus, Ol. This species is allied to-the two preceding; 
from the former it differs as above described, and from the latter it may 
be known by having the sides of the thorax rounded and not obtusely 
angled, the erect sets of the elytra relatively tiner and the second ventral 
segment equal to, and not less than, the third and fourth united ; the 
