136 A Monograph of Culicidae- 
All the specimens I have seen labelled Culex ciliaris have 
proved to be only C. pipiens. It was undoubtedly described from 
a small Culex pipiens; the “ferruginous thorax” I have often 
noticed in true pipiens, and that is the only difference of 
importance one can detect in the description. The yellowish- 
ferruginous abdomen mentioned by Schiner can easily be 
produced in the common house gnat by denuding its surface. 
Ficalbi recently states that his C. phytophagus, described in 
1889, is only this common species. Certainly there is nothing 
to separate Meigen’s C. rufus from it, nor Linnaeus’s C. alpinus 
and C. vulgaris. 
Germar’s C. domeslicus may possibly be the same; certainly 
Stephens’s record for England refers to it. Ficalbi only says he 
has seen Rondani’s old specimen obtained in Italy. By the 
hinder parts of the segments I understand the basal part, and 
thus there is nothing of vital importance to differ in the 
description from C. pipiens. 
I have also seen denuded specimens of this species named in 
cabinets C. lutescens. 
112. Culex quasipipiens. n. sp. 
Thorax brown, with narrow curved golden scales. Abdomen 
brown, with curved very pale yellow to white basal bands, last 
segment often pale scaled. Legs unbanded, brown; knee spot pale; 
ungues equal and simple. Wings much as in C. pipiens , bat the 
stem of the first sub-marginal a little longer, and the posterior 
cross-vein considerably further off, and the relative positions 
of the sub-costal, costal, and base of the first fork-cell different. 
Head with pale scales. Thoracic scales broader than in C. pipiens. 
9 . Head deep brown, with very narrow grey curved scales 
on the occiput, and black upright forked scales, which form a 
black patch on each side near the neck, a narrow band of pale 
scales bordering the eyes, and a row of six bristles on each side 
projecting inwards and over the eyes; clypeus bright brown; 
palpi like C. pipiens , covered with black scales and black bristles ; 
proboscis deep brown; antennae deep brown, basal joint chestnut- 
brown, base of the second joint testaceous. 
Thorax deep brown, with narrow pale golden curved scales, 
which become paler in front of the scutellum; scutellum ochra- 
ceous-brown, with narrow curved scales and golden-brown border 
bristles.; metanotum chestnut-brown; pleurae pale ochraceous. 
