2. XOMADA. 



besccnce ; the wings subhyaline, faintly clouded at their apical 

 the nervures and teguhe rufo-testaceous : legs black 



SB3 ESS^S above, the tibi^and t^i ferru 

 rinous: the anterior and intermediate pairs have a b lacWtem 

 behind Abdomen obscure ferruginous, the base black, ^etraes 

 two yellow or ferruginous spots on the basal segmeu the second 

 having a broad transverse yellow fascia, attenuated m the middle 

 and usuallv interrupted ; the four following segments hav^each a 

 narrow transverse fascia, the first two usually slight!} mtenupted, 



sS ^ «■ r \ utire : be r ; h obsc r wfrns: 



— * ■ -^ : ^ nf l fourth segments '- ^#^? b V^r 



sometimes the ina-<T~i?d&i&- l , A r Xx\\J- -:T A9 da.\e^ . I\\l. 



n L ■ i_ ^ Vf "- i i y i,"-i"pie • nhdO- 



verse vellow stripe, but are usually immaculate. " a minute u 



•j 



This species is the parasite of Aadrena clarl-ella. It has been 

 taken with that bee as early as the 10th of April, on Hampstead 

 Heath : it has also been found at Leominster, at Newcastle, and at 

 Carlisle. Specimens have been received from Dr. Nylander under 

 the name of N. borealis of Zetterstedt. It appears to be extremely 

 local, and probably at no time abundant. 



3. Nomada signata. 



N. atra, thorace lineis quatuor longitudinalibus ferrugineis, ab- 

 domine rufo fasciisque flavis ornato. 



Nomada signata, Jurine, Hi/m. tab. 10. gen. 81 $ . 

 Smith, Zool. ii. 602 <J $ ; Bees Great Brit. 12o. 

 Thorns. Hym. Scand. ii. 191. 



Ft male. Length 4-5 lines. — Head and thorax black, the clypcus 

 anteriorly, a spot above it, the orbits of the eyes, the antennae, 

 labruni, and mandibles ferruginous; the scape has a black lino 

 outside. Thorax — the collar, tubercles, a large patch on the breast 

 on each side, a minute dot under the wings, four abbreviated longi- 

 tudinal stripes on the disk, and the scutellum ferruginous ; wings 

 subhyaline, their apical margins having a dark fuscous cloud; the 

 tegulae ferruginous ; the legs ferruginous, the base of the femora 

 black ; the metathorax variegated on each side with irregular yel- 

 low stripes or spots. Abdomen ferruginous, the first segment black 

 at its base and having a broad, irregularly waved fascia, sometimes 

 interrupted ; the following segments have a broad yellow band, 

 leaving a narrow rufo-piceous border on the apical margins ; tho 

 second, third, and fourth segments beneath have a transverse broad 

 yellow stripe ; the stripes frequently obscure. B.M . 



Male. Length 4-5 lines. — This sex closely resembles the female, 

 but differs in having the labrum, margin of the clypcus, and the 

 mandibles yellow ; the antennas fuscous above ; the clypeus has a 

 silvery pubescence ; the thorax black, the tubercles yellow, tho 

 tegulaa and two dots on the scutellum ferruginous ; the basal seg- 

 ment of the abdomen has sometimes an obscure yellow fascia, but 

 it is usually obliterated and there are merely two black dots. B.M. 



i 



