MYZIJS aBACiLlS. 
177 
Antennse rather short. Frontal tubercles obvious. 
Ocelli distinctly marked. Prothorax large, with a 
brown rhomboidal-shaped band. Mesothorax much 
developed. Three thoracic lobes small, and pointed 
anteriorly. Scutellum brown. Abdomen oval, with a 
few faint cross streaks of brown. Cornicles cylindrical 
and very thin. Tail fine. Legs moderate ; tibial joints 
and tarsi brown. Wings ample. Cubitus and inser- 
tions green. Stigma grey, veins dark brown. Found 
on the sycamore in company with Ghaitophoms aceris 
early in ISTovember at Shottermill, near Liphook. At 
that time I could find no larvae, and possibly the 
sycamore is not its usual food. 
Winged male. 
Indies. 
Expanse of wings 0*320 
Size of body 0*090x0*030 
Length of antennae 0*090 
,, cornicles 0*015 
Millimetres. 
8 * 12 . 
2*27x0*76. 
2*27. 
0*38. 
Bright ochreous yellow. Thoracic region largely 
developed. Abdomen small. Head, band on pro- 
thorax, thorax, and pectus rich brown. Also a patch 
below the wing-insertions rich brown. Abdomen 
with brown transverse bands, and five or six dots on 
each Carina. Tail small. Genito-anal valves large. 
Antennae black. Wings as in the winged female. 
Several of these males were found in November 
mixed with the preceding females, herding also with 
individuals of GJiaitopJiorus aceris. I could not dis- 
cover the oviparous female ; but as in other species she 
usually makes her appearance a little after the dis- 
closure of the male, probably at this advanced season 
she was hiding in the crevices of the bark, and at no 
great distance. 
12 
