72 ANDEENID^. 



tured, and covered with ferruginous pubescence above, on the sides 

 and on the legs it is paler ; the posterior tibiae and tarsi rufo- 

 fulvous, the apical joints of the anterior and intermediate tarsi 

 ferruginous ; the floccus yellowish white, the scopa fulvous ; wings 

 subhyaline, faintly clouded at their apical margins, the nervures 

 ferruginous. Abdomen shining, subcordate, convex, and closely 

 and finely punctured ; the apical margins of the three intermediate 

 segments with narrow white marginal fasciae, the first usually 

 interrupted ; sometimes a little pubescence on the margin of the 

 first segment ; in very recent specimens the fasciae are yellowish 

 white ; the apical fimbria pale fulvous ; beneath slightly convex, 

 with the margins of the segments fringed with pale fulvous hairs. 



B.M. 



Male. Length 3|-4 lines. — The face with pale fulvous pubescence ; 

 the head a little wider than the thorax ; the antennae obscurely 

 rufo-piceous beneath. The disk of the thorax thinly clothed with 

 very pale fulvous pubescence, on the sides and on the legs it is 

 cinereous ; wings hyaline and iridescent, faintly clouded at their 

 apical margins. Abdomen oblong-ovate, the margins of the seg- 

 ments slightly depressed, all having narrow white marginal fasciae, 

 the first and second usually interrupted ; the abdomen is very 

 closely covered with fine shallow punctures. B.M. 



This species appears in April ; it is widely distributed, and usually 

 very abundant. In Kirby's type collection his var. 8 is, in my opi- 

 nion, a specimen of A. dorsata. A male is placed with the species, 

 which I believe to be that of A. convexiuscula. It should be borne 

 in mind that my descriptions are of very fine fresh examples ; the 

 males are very frequently entirely hoary. 



This species, and probably some others, occasionally partially 

 reappear late in the autumn. I have observed the same of Antho- 

 jphora acervorum, Melecta armata, and Nomada cdtemata. 



61. Andrena convexiuscula. 



A. nigra, griseo suDpubescens ; abdomiue ovato, convexo, segmen- 

 torum marginibus pallidis ; tibiis plantisque posticis runs. 



Andrena convexiuscula, Smith, Zool. v. 1927 ; Bees Great Brit. 102 



Nyland. Notts, ur Stilish, pro Faun, et Flo. Fenn. ii. 257. 



Schenck, Nass. Bien. 255. 



Thorns. Opusc. Ent. 157 ; Hym. Scand. ii. 106. 

 Melitta convexiuscula, Kirby, Mon. Apum Angl. ii. 166 9 . 

 Andrena xanthura, Nyland. lib. cit. Supp. 100. 



Female. Length 5 lines. — Black ; the face covered with short pale 

 fulvous pubescence, that on the clypeus cinereous ; the flagellum 

 slightly testaceous near the apex. Thorax very finely punctured 

 and thinly clothed above with fulvous pubescence ; on the meta- 

 thorax and sides it is much paler ; the tegulae piceous ; the wings 



