50 [March, 



finely shagreened than in T. halo2yhilus, with traces of four faint impressions on 

 the disc, sparingly pubescent and rather dull. Elytra pitchy-l>ro\\ai, i-ather 

 shining, quite half as long again as thorax, puncturation shallow and moderately 

 close, finer than in T. halophilus, Abdomen black, rather shining, finely aliitaceoiis 

 and pubescent. Legs reddish-testaceous. Length 1 '2 mm. 



One specimen taken in November, 1901, on the shores of a marsh at 

 Melleha, Malta, witli T. troglodytes, Er. Type in my Collection. 



I add a Table which may serve" to discriminate the small (length 

 not exceeding 1'7 mm.) species of this genus which are not furnished 

 with four distinct impressions on the disc of the thorax. 



1. Sides of thorax only slightly rounded in front and only slightly contracted 



behind. Species narrow and elongate 2 



— Sides of thorax more strongly rounded in front and more strongly contracted 



behind 4 



2. The whole l^pper surface densely clothed with thick grey pubescence ; deep 



black, dull, legs (except knees and tarsi) black Length 1'2 mm. . 



schneideri, Ganglb. 



— The whole iipper svu'face not densely pubescent : legs testaceous 3 



3. Antennae entirely testaceous ; head and thorax more finely shagreened ; 



abdominal pubescence more dense ; insect more slender ... suhtilis, Er. 



— Antennae inf uscate towards apex ; head and thorax more coarsely shagreened ; 



abdominal pubescence less dense ; insect more robust gracilis, Mann. 



4. Head and thorax very finely shagreened, more shining, not punctured ... 5 



— Head and thorax more coarsely shagreened, less shining, not pi^nctured 7 



5. Elytra coarsely and not very thickly punctured punctipennis, Kies. 



— Elytra more finely and thickly punctured 6 



6. Thorax aboiit as long as broad, elytra considerably longer than thorax 



exiquus, Er. 



— Thorax broader than long, elytra but little longer than thorax 



despectus, Baudi 



7. Eyes large, temples shorter than diameter of eyes viewed from above . . 8 



— Eyes small, temples as long as the diameter of eyes viewed from above ; 



elytra reddish rujipennis, Epp. 



8. Abdomen densely alutaceous and pubescent alutaceus, Fvl. 



— Abdomen much less densely alutaceoiis and pubescent 9 



9. Head larger ; size larger. Head and thorax more coarsely shagreened, sides 



of latter less strongly roiinded in front and less strongly contracted 

 behind ; elytra shorter, punctviration coarser 10 



— Head smaller ; size smaller. Head and thorax more finely shagTeened, the 



latter with sides more rounded in front and contracted behind ; elytra 

 longer, puncturation finer championi, n. sp. 



10. Colour dark ; thorax (usually) with small transverse impression at base ; 



antenna; and legs (usvially ) dark halophilus, Kies. 



— Colour of thorax and elytra reddish ; thorax at base without impression ; 



antennsB and legs reddish-testaceous v. simpUcicollis, WoU. 



January l^th, 1912, 



