100 [April, 1899. 



BRITISH DIPTERA UNRECORDED OR UNDESCRIBED BY ENGLISH 



AUTHORS. 



BY E. H. MEADE, F.R.C.S. 

 {Continued from page 33). 



IIelomyza. INORNATA, Lw. 



Thorax and abdomen testaceous ; antennae yellow with a short haired arista ; 

 thoraTt covered with verj minute black hairs and punctures, the ordinary bristles 

 being small ; scutellum ochreous, covered with minute hairs ; abdomen with 

 dark edges to the segments ; legs yellow with the distal ends of the tibiae and the 

 last four joints of the tarsi tinged with brown ; wings with the transverse veins 

 nebulous, but the ends of the long veins unclouded. Length, 5—6 mm. I found 

 this rare species in Nab Wood, near Bingley, Yorks. 



Helomyza fceda, Lw. 



pect oralis, Lw. ? 



The colour of this species is also yellowish-brown ; antennae yellow with a long 

 haired arista ; thorax marked with sub-distinct brown stripes, and covered with 

 minute black hairs ; ordinary bristles long, and seated upon black spots ; scutellum 

 yellow with brown sides and pale yellow stripe down the centre, which is quite 

 smooth, while the sides have minute black hairs upon them ; abdomen marked with 

 transverse black lines ; legs including the tarsi quite yellow ; wings brownish with 

 a thick and dark costa ; the ends of the second, third and fourth long veins, as well 

 as the transverse veins, nebulous. Length, 8 mm. 



I found both sexes at Newton, near Bicester, Oxon. 



Allophyla atricobnis, Lw. 

 Helomyza atricornis, Mgn. 



This species forms a connecting link between the Helomyzince and 

 BlepharopterincB of Loew. It possesses the oval third antennal joint, and the 

 haired arista of those species in the former group, and the humeral bristle and 

 smooth unpunctured thorax of the species in the latter one. The colour is yellow 

 or testaceous ; frontal space ochreous ; face pale yellow ; antennae with third joint 

 black ; oral setae one on each side ; abdomen marked with narrow transverse black 

 lines ; legs quite yellow with the exception of the last two tarsal joints which are 

 fuscous ; wings clear, veins quite unclouded ; costal setae long but rather far apart. 

 Length, 4 mm. I found a specimen of this fly at Richmond in Surrey in 1889, and 

 another at Windermere in 1892. 



This species must not be confounded with the Heteromyza atricomis, Mgn., 

 which is quite distinct. 



SCOLIOCENTEA TILLOSA, MgD. 



In this species the frontal space is ochreous, the face yellow with a whitish 



glimmer ; antennae rufous with a very long bare arista ; oral setae two and long ; 



j^^'\orax with dorsum and sides ash-grey, with rufous shoulder points, and covered 



.,v -'ong, soft black hairs ; scutellum yellow and nude ; abdomen rt'd, with long 



