510 Rev. T, A. Marshall’s monograph of 
ally in carrion. Bouché has described the larva of this 
Alysia as: Oblong, fleshy, white, soft, glabrous, and 
semitransparent ; head somewhat rounded; oral parts 
indistinct ; dorsal segments elevated, the anal segment 
narrowed. Cocoon covered with a yellowish tissue of 
great tenuity. Length, 2 lines. 
2. Alysva soror, Marshall. 
A. soror, Marsh., Hymén. d’Europe et d’Algérie, 
Braconides, vol. ii., 377. 
Spiracles of the metathorax inconspicuous, punctiform, not 
margined. Antenne ? 40-jointed ; stigma triangular. (¢@ un- 
known.) Very like the preceding, but differing in the following 
particulars, which have obliged me to keep it separate. Form 
more elongate. Antennz subsetaceous, almost as long as the body, 
and with five additional joints, Wings hyaline, longer in propor- 
tion; 2nd cubital areolet differently shaped, produced in an acute 
angle towards the base of the wing ; 1stintercubital nervure twice 
as long as the 2nd ; in manducator the areolet is nearly square, 
the internal angle is hardly produced, and the 1st intercubital 
nervure is very little longer than the 2nd. First abdominal seg- 
ment longer, more narrowed at the base, not elevated in the 
middle, and without visible tubercles. Other differences are not 
apparent, but the structure of the antenne and wings forbids me 
to consider this a variety of manducator. Length, 2}; wings, 
53 Jin. 
I captured the only specimen in the London district. 
3. Alysia rufidens, Nees. 
A. rufidens, Nees, Mon., 1., 241; Hal., Ent. Mag., v., 
221, 3 9, pl. xvii, fig. 2 (wing). 
Antenne ¢ 9 22-24-jointed. Stigma elliptic. 9 black, pubes- 
cent; face finely granulated, dull; mandibles reddish ; palpi 
fuscous. Antenne black, filiform, shorter than the body. Meso- 
thoracic sutures three, the two lateral shortened ; metathorax very 
finely punctato-rugulose. Wings hyaline; nervures fuscous; 
squamula and stigma piceous, the latter oblong, elliptic, emitting 
the radial nervure from its exterior third ; radial areolet lanceo- 
late, not reaching the extremity of the wing ; 3rd abscissa slightly 
curved towards the end ; Ist intercubital nervure curved, almost 
twice as long as the 2nd abscissa ; Ist abscissa rather long, directed 
