120 [^1-'^^' 



Head, front distinctly cnincal, wliole spinuloso, length equal to length of first 

 3 segments of the antennae. Host rum green, dark at the tip, reaching the 

 mid-coxa?, tip bluntly conical, with 2 haire on either side. Frdthurnx spiuulose, 

 devoid of any larger spines ; vtesothora.r uniformly covered witJi minute spines, 

 with a few longer spines interspersed ; vietatlwrax with localised spiuulose 

 areas, oiten chitiuised, with one or two larger spines in their midst, the 

 proportions of the head an-d -3 thoracic segments being 60, 51 . 75, 48. Abdomen 

 with small, more or lesa chitinised areas bearing minute spines, and at least 

 one large spine, a few still larger spines along Uie ui-ar^in and towards the apes 

 ■of the abdomen ; the general shagreeji visible with very great difliculty, even 

 in stained specimens. Cornicles very short little more than tubercles. Cauda 

 knobbed, ie^.f dull yellow; tar^l black, robust, the length of the hind coxa 

 •32 mm., tibia '38 mm., tarsi "16 mm. 



Length 1'7 mm., breadth •9 mm. 



Easily separated from 8. sclioutedeni Del G. by the localised 

 spinuh)se areas on tlie abddineii, the latter species being ttniformly 

 ■covered with minute spines. All the specimens examined (about 20 

 in number) showed this character very distinctly. So far, this species 

 is known only from Walker's original material, which was found on 

 grass, in the autumn, near Lancaster. 



Thripsaphis Gill. 



This genus was erected by Gillette (Canad. Entom. xlix,1917, p. 193) 

 for an American species which has the wings nornml apliidine (tlKuigh 

 the cubitus of the hind wing may sometimes be absent) ; eyes without 

 ocular tubercles, cauda knobbed, anal plate divided, body with spine-like 

 hairs, cornicles present as slightly elevated rings. At present four 

 .species are relegated to this genus, all from America. 



Thripsapkis ciji^eri (Walker) (fig. 1, A-C ; fig. 2, A-C). 

 Apliis ci/peri Walker, Ann. & Mag. Nat. HisL (2) ii, 1848, p. 45. 



Apterous Viviparous Female. — Elongate, narrow, rather flat, green with 

 ■.black marginal areas on all the abdominal segments, on the mesothorax, front 

 of the head, and at the base of the antennae. All the segments distinct, body 

 ■constricted at the third abdominal segment, with roughly two irregular, lateral, 

 longitudinal rows of black spots aud a broad, median, pale-green longitudinal 

 streak- Antennae very dark brown to black, basal segment pale, segments I 

 aud II subequal, III n^early equal to the sum of the two following, IV and V 

 ■equal, VI with base and spur nearly equal, segment III with from 2-5 small, 

 circular sensoiria on the distal third; proportions, 6, 6, S3, 18,17 (10+8) (some 

 specimeus 9+9): total length 1^96 mm. Head with front convex, two spines 

 laterad, a gland in the convexity, strongly chitinised, another at the base of the 

 antenna, and another situated behind the eyes near the hind margin, the latter 

 .not in a dark patch. Eyes without ocular processes. Rostrum 3-segmeuted, 



