.'551 l\Ir. E. E. Austen on nev^ 



cenirum can at once be distinguishefl from Griiubcrg's genus 

 by, inter alia, the elongate and slender first antennal joint, 

 which is six or seven instead of only three times as long as 

 the second joint, and by the antennae not being situate on a 

 ))Vominent tubercle. In tlie shining face, expanded and 

 s])ining terminal joint of the pali)i, and coloration of the 

 wings the new genus exhibits resemblances to the Neotropical 

 Lepidosekifja, Macq., from which, however, it is readily 

 distinguishable owing to the elongate shape of the body, the 

 length of the first joint of the antennie, and the non- or 

 scarcely incrassate front tibipe, which in Lepidoselaya are 

 enormously swollen. 



Hijypocentrum versicolor, sp. n, 



5 . — Length (9 specimens) 7 to 9 mm. ; width of head 

 .2" 1 to 2'8 mm. ; Avidtli of front at vertex 1 mm. to just over 

 1 mm. ; length of wing 7*.25 to 8*75 mm. 



Body dusky, vnnys variegated, tibite for most part huff or 

 cream-bujf'^. — Dorsum of thorax blackish, covered with 

 (jreyish dust ; scutellum and abdomen clove-brown, second, 

 third, and fourth abdominal segments each ivith a more or less 

 deep thovgh not very distinct greyish hind border; wings for 

 most part dark brown, but ivith large hyaline or milky streaks 

 or blotches, extreme base and costal cells ochre-yellow. 



Head: front, face, and jowls shining clove-brown, a more 

 or less distinct tawny-olive band sometimes visible imme- 

 diately below antennae, extending from eye to eye; upper 

 half of front pearl-grey poUinose ; in rubbed specimens 

 pollinose area may appear to be confined to a somewhat 

 curved transverse band, occupying a depression above the 

 more or less tumid anterior half of the front, which forms an 

 ill-defined callus of considerable dej)th, lower portion of 

 which extends from eye to eye and has a nearly straight 

 lower margin, while upper portion is subtriangular ; in 

 middle line immediately below callus, with which it is in 

 contact, is a small dull clove-brown spot (as exhibited by so 

 many species of Hcematopota) , sometimes difficult to distin- 

 guish, situate between callus and base of antenupe ; terminal 

 joint of palpi clove-brown, clothed on outer side for most 

 part with minute and inconspicuous dark brown hairs ; first 

 and second joints of antennce pale mummy-brown or raw 

 umbcj'-coloured, second joint and distal half of first some- 



* For names and iUustrations of colour.s, see lUdgway, ' A Nomen- 

 clature of Colors for iSatiiralists ' (Boston: Little, Brown, & Company, 



1880). 



