150 [July, 



*Oscinis nitidissima, Mg-. — This is a small black species resembling 0. frit, 

 L, but the thorax is bi-illiantly shining" and the anterior tibise more extensively 

 pale. It does not appear to be uncommon in different parts of Sixffolk in June. 



Oscinis anthracina, Mg. (atricornis, Zett.). — This again is not uncommon 

 in England (Cambridgeshire, Norfolk, Suffolk, Herefordshire) and Scotland 

 ( Invernessshire) in June and July. It resembles the last species but is of 

 narrower build and the legs are entirely pale. 



*Oscinis cognata, Mg. {gilvipes, Lw.). — I have taken this very distinct species 

 at Brandon (Siiffolk) in June and at Chippenham Fen (Cambs.) at the end of 

 May, and there were a number of specimens in the late Dr. Capron's collection 

 probably taken near Shiere (Svirrey). The strongly punctate thorax, entirely 

 pale legs, and somewhat short wings tinged with yellowish-brown serve to 

 distinguish it from any other species. 



*Oscinis Ipevif ro7is, hw. — This most distinct species is easily recognised 

 by its very lai-ge and brightly shining black frontal triangle, its shining black 

 thorax with pubescence appearing pale in some lights, its brownish-yellow 

 antennse and pale legs with femora and tibioe more or less darkened. Col. 

 Yerbury took a male at Nairn on July 6th, 1904. 



*Oscinis sordidella, Zett. — This has the thorax somewhat greyish, face 

 jowls, frons extensively, and antennse yellowish, and legs entirely pale yellow. 

 I took one male and two females of this species (which I consider quite distinct 

 irova. frontella. Fin.) at Orford (Suffolk) in June, 1907, and a female near Eyn- 

 sham (Oxfordshire) on July 3rd, 1910. 



* Oscinis frontella. Fin. — I recognise this as a small shining black or slightly 

 greyish-black species, with the belly of the female pale, partly pale antennse, 

 frons narrowly pale in front and legs dark, with pale base and tip to the tibiae, 

 and pale tarsi (sometimes in what is possibly a variety of the female the legs are 

 entirely pale). I have seen specimens from various localities in England and 

 Scotland. Becker has undoubtedly included several species under this name. 



Oscinis fasciella, Zett. — I have no hesitation in considering this species 

 distinct from frontella Flu., it is a small grey species with pale antennae, face 

 and frons in front, abdomen with pale hind-margins to the segments, and con- 

 siderably pale at the base, the four anterior legs pale, the hind femora and a 

 broad ring on the hind tihiiB dark, the hind tibiae bear a distinct black spur at 

 the tip. I caught it at Aldeburgh (Suffolk) in September, 1907, and Col. Yerbury 

 has found it at Gravesend and Dartford (Kent) and Walton-on-Naze (Essex). 



Oscinis prateiisis, Mg. — Col. Yerbiuy caught five specimens of what I believe 

 to be this species at Torcross (Devonshii-e) in Augiist, 1903. It was recorded as 

 occurring in Britain Ity Ciu'tis, bvit has since been relegated to the List of 

 Reputed British species. It resembles my frontella. Fin., but is somewhat 

 stouter and larger (2-2.2 mm.) and is clothed with somewhat long yellowish-brown 

 pubescence. 



Oscinis alhipalpis, Mg. — This species, like the last, has been reputed to 

 occur in Britain ; specimens taken by myself in Sviffolk appear to answer to 

 Becker's interpretation of the species : it may be known by its black antennae, 

 pale palpi, face and front of frons, its greyish-black thorax with black pubes- 

 c enc?, and its partly pale legs. 



