1881.] 137 



ON CERTAIN BRITISH HEMIPTERA-HOMOPTERA. 



BY JOHN SCOTT. 

 (Continued from p. 105). 



Deltocephaltts I-albtjm, sp. nov. 



? . Clear pale brownish-yellow. Crown yellowish-white with a brownish spot 

 on each side of the centre at the apex, a short brownish streak within the anterior 

 margin extending to within a short distance of the anterior margin of the eyes, and 

 a short transverse streak of the same colour in a line with the latter. Face bone- 

 white. Frons black, with three transverse, slightly curved, white streaks, the 

 upper two clubbed at their inner extremity, side margins narrowly black to within 

 a short distance of the apex, divided by one or two white spots, within the lower 

 margin two short, transverse, black spots. Clypeus yellowish. Rostrum brown, apex 

 narrowly black. Lorce pale yellowish-white, inner margin narrowly black. Cheeks 

 pale yellowish-white, with a small black spot on the inner margin near the apex. 



Pronotum yellowish-white with a somewhat indistinct, pale, longitudinal, 

 central line, and a reddish spot on each side of the same at the base. Scutellwm 

 clear pale brownish-yellow, with a short transverse channel in the centre, the space 

 between this and the apex white. Elytra clear pale brownish-yellow, shining, nerves 

 fine : davits, apex of the axillary nerve white, anal nerve pale brownish-yellow, apex 

 white, area enclosed between the latter and the suture white at the base, in which is 

 a dark spot : corium clear pale brownish-yellow, transverse nerve of the basal area 

 broadly white, the colour extending for some distance along the brachium and cubi- 

 tus, and forming an I -shaped character, posteriorly narrowly bordered with brown ; 

 nerves of the ante-apical and apical areas fine, white, apex of the latter margined 

 with black. Legs pale yellowish-white ; thighs : 1st pair with a black or pitchy- 

 black band next the base ; 2nd with a pitchy-black spot on the upper margin near 

 the apex, and another on the lower margin towards the base ; 3rd yellow, with three 

 or four minute black spots on the upper margin at the apex ; tibia : 3rd pair yellow, 

 apex narrowly black, spines brown, set in black punctures, some of which are in 

 pairs ; tarsi : 1st and 2nd pairs yellow, 3rd black, 1st joint at the base yellow : 

 claws of all the pairs black. 



Abdomen above, black ; basal four segments on the sides yellow : 5th and 6th 

 yellow, the former with a fine black longitudinal streak on the side, the latter with 

 two black spots on each side of the posterior margin, one placed at the lower 

 extremity, the other in a line with the streak on the former : underneath black, 

 posterior mai'gin of the 2nd, 3rd, and 4th segments very narrowly red, terminal two 

 yellow, postei'ior margin of the last [-shaped, with a black margin and a depression 

 on each side. Length, 1| line. 



This species forms one of a large group of which D. ocellatus, Fall., 

 D. oculatus, J. Sahib., &c, may be taken as types. It certainly does 

 not agree with any of the descriptions of the late Dr. Fieber, nor with 

 any of his types, either on the continent or in my collection. At the 

 same time as the genus is so remarkable for its variability, I am not 

 positively prepared to see the name retained which I have given to 



