2. NOMADA. HJ 



Male. Length 4 lines.— Head and thorax black ; the face clothed 

 with silvery pubescence, the clypeus, labrum, and mandibles yellow 

 the latter ferruginous at their tips ; the scape black, having some- 

 times a ferruginous line within ; the flagellum ferruginous, more or 

 less black towards the base above. Thorax— the collar, tubercles 

 tegulae, and two spots on the scutellum, frequently united, red •' 

 the legs red ; the coxae and trochanters black, except their extreme 

 apex ; the anterior and intermediate femora black at their base 

 beneath, the posterior pair black beneath, except their extreme 

 :\ ;j . , /"\ • \ ]v ;?- men ferruginous, black at the base, the second seg- 

 i - •<*— -n , s cu y, _ .l nr <r e rounded m- -^ -,fihe third a smnlW 

 nient has on each siae a &: ^ - ja, !'• , Limu d srnauer 



spot or line, the fourth a short stripe and usuaH^4sffiiSS^| dot 

 outside, the fifth a transverse interrupted stripe, the sixth a broaaei- 

 uninterrupted one, yellowish white ; beneath, a minute yellow spot 

 at the apex. B.M. 



(Small specimens of the male have usually the scape, coxae, and tro- 

 chanters entirely black. 



This species appears in May and is a parasite of Andrena labialis ; 

 it is widely distributed, but somewhat local. Kirby 's var. y of his 

 Apis rujicomigis a female of this species. 



7. Noniada lathburiana. 



N. atra, scutello punctis duobus navescentibus ; abdomine ferrugineo, 

 fasciis flavis, medio atteuuatis. 



Nomada lathburiana, Smith, Bees Greed Brit. 125. 

 Apis lathburiana, Kirby, Man. Apum Amjl. ii. 183 J. 

 Apis rutiveutris, Kirby, lilt. cit. 187 $ . 

 Xoniada rufiventris, Smith, Zool. ii. 590. 



Thorns. Hym. Scand. ii. 184. 

 Nomada ruarshamella, Nyland. Xotis. ur Scillsk. pro Faun, et Flo. 

 Fenn. i. 177. 



Female. Length 4-5g lines.— Head and thorax black, the clypeus 

 and a spot above it, the orbits of the eyes, the labrum, mandibles, 

 and antennae ferruginous ; the scape black above. Thorax, the 

 tubercles and two spots on the scutellum yellow ; a stripe down the 

 breast in front and the legs ferruginous ; the coxae more or less 

 fuscous, and the posterior femora and sometimes the tibiae having 

 a black stain beneath ; the wings subhyaline, their apical margins 

 having a fuscous cloud, the tegulae reddish yellow. Abdomen 

 ferruginous, the base black ; the apical margins of the first and 

 three following segments rufo-fuscous ; the basal margins bright 

 yellow, attenuated in the middle, the fifth entirely yellow ; beneath 

 ferruginous, the apical margins of the segments more or less black. 



B.M. 



Male. Length 4-5 lines. — Head and thorax black : the scape of 

 the antennae in front, the face below their insertion, the orbits of 

 the eyes, interrupted at their vertex, yellow ; the labrum and 



