Lathrobwm.] staph YLiNiDiF,. 301 



Male with the seventli ventral segment of hind hody broadly and 

 strongly impressed, and deeply and angularly excised on its apical 

 border. 



In moss, dead leaves, &c.; common and generally distributed tliroughout tlio 

 kingdom. 



There are two distinct forms of this insect, one fully winged with the 

 elytra longer than thorax, and the other apterous or with rudimentary 

 wings, with the elytra shorter than thorax ; in the latter form the 

 elytra are more finely and sparingly punctured than in the former. 



Xi. long'ulum, Grav. A very small, narrow, linear species, shining 

 black or pitchy black with the mouth parts red ; head oval-oblong, a 

 little broader than thorax, rather strongly and sparingly punctured ; 

 antennae red, rather stout, as long as head and thorax united, joints 

 4-10 submoniliform, penultimate joints slightly longer than broad ; 

 thorax much longer than broad, parallel-sided, rather strongly and 

 thickly punctured, with a smooth central line ; elytra distinctly shorter 

 than thorax, rather finely, and more or less thickly, punctured ; hind 

 body elongate, very finely and thickly punctured, less thickly towards 

 apex, very finely and rather closely pubescent ; legs red. L. 3-4 mm. 



JSIale with seventh ventral segment of hind body obsoletely furrowed 

 on central line, apical margin bisinuate. 



Marshy places; in moss, flood refuse, &c. ; sometimes in haystack refuse, sand-pits, 

 &c. ; London district, generally distributed ; Glanvilles Wootton ; Portsmouth ; 

 Kepton; Stratford; Lincoln; Northumberland district, rare; Scotland, scarce, 

 Sol way, Tweed, Forth, and Argyle districts. 



li. punctatum, Zett. [fovulum, Steph.). Entirely black with the 

 mouth parts red ; head somewhat rounded, about as broad as thorax, 

 rather strongly and sparingly punctured, very sparingly on disc ; antennae 

 reddish or ferruginous, about as long as head and thorax united, joints 

 4-10 oblong, gradually a little shorter ; thorax oblong, parallel-sided, 

 almost as broad as elytra, rather strongly but more or less sparingly 

 punctured with a narrow smooth longitudinal space in centre ; elytra 

 shorter than thorax, rather strongly and thickly punctured ; hind body 

 parallel-sided, suddenly narrowed at apex, very finely and thickly punc- 

 tured, dull, with fine and close greyish pubescence ; legs lighter or 

 darker pitchy red. L. 6 mm. 



Male with sixth and seventh ventral segments of hind body impressed, 

 and the latter deeply emarginate on apical margin. 



Marshy places ; in dead leaves, moss, flood refuse, &c. ; local, and as a rule rare ; 

 Loudon district, not uncommon, Lee, Darenth Wood, Walton-on-Tliames, Wimbl'jdon, 

 Barnes, Dagenham, TonbriJge ; Glanvilles Wootton, Dorset; Scotland, very raie, 

 " Sliiugle near Preston Bridge, Tweed district," R. Hislop ; it is possiljle the species 

 may be overlooked as it probably occurs in many other localities ; it is very like a 

 small L. brunnipes of the brachypterous type, but the head and thorax are more 

 sparingly punctured, and the legs are darker. 



Zi. atripalpe, Scriba. Very like the preceding, but rather narrower 



