1666 Insects. 



Male. — (Length 4 lines). Black, the antennae as long as the head 

 and thorax, the joints slightly curved; the face clothed with pale 

 brown hair. Thorax, the sides clothed with pale fulvous hair, very 

 thinly so on the disk ; the tegulae dark piceous ; wings subtestaceous, 

 the apical margins clouded, the posterior tibiae and all the tarsi rufo- 

 piceous ; the claws ferruginous. Abdomen lanceolate, nigro-piceous, 

 the apical margins of the two basal segments rufo-piceous, sometimes 

 of only the basal segment, the apical segment has a pale fulvous pu- 

 bescence ; beneath, the second, and sometimes the base of the third 

 segment pale ferruginous. 



This is the true Andrena Rosae of Panzer ; Mr. Kirby's varieties 4 

 and 5 belong to a distinct species, which I shall next describe. The 

 male of A. Rosae is the Melitta zonalis of Kirby's monograph. This 

 is one of the rarest species of the genus : some years ago, I captured 

 a single female at Darenth, Kent; and on the 11th of August, 1844, 

 at Shirley, near Croydon, I took twelve specimens, three males in com- 

 pany, and this circumstance, united to their specific resemblance, 

 satisfies me as to their indentity. Mr. Heales, also met with two or 

 three females at Hastings, in 1844. The range of variety in this spe- 

 cies is very great, every shade occurring between the highly coloured, 

 and black specimens ; the highly coloured are the most rare. 



Sp. 3. Andrena rubricata, Smith. 



Female. — (Length 6 J lines). Black, the face clothed with a yel 

 lowish-brown pubescence ; the antennae rufo-piceous beneath ; the 

 thorax has a pale fulvous pubescence, darkest on the disk ; the tegulae 

 dark piceous; wings subhyaline, clouded at their margins; thefloccus 

 at the base of the posterior femora beneath, is pale yellow, as is also 

 the scopa beneath, above it is dark brown ; claws ferruginous. Ab- 

 domen punctate, the apical margin of the first segment red, the second 

 laterally, its margin, also that of the third, and sometimes of the 

 fourth also, red ; the apical fimbria fuscous, beneath the second seg- 

 ment is sometimes red laterally. 



Male. — (Length 5 — 5j lines). Black, head rather wider than the 

 thorax, the pubescence on both pale fulvous ; the legs have a reddish 

 brown pubescence ; the tarsi are ferruginous. Abdomen punctate, 

 ovate-lanceolate, the margin of the first, and the whole of the second 

 segment red, the margin of the third rufo-piceous ; or, only the margin 

 of the first and second, and sometimes of the third, rufo-piceous ; 



