HYMENOPTERA. 11 



1. Lamprocolletes chalybeatus. B.M. 

 Andrena chalybeata, Erichs. Wiegm. Arch. (1842) p. 268. 24."J. 

 Hub. Van Diemen's Land. 



2. Lamprocolletes obscurus, n. s. B.M. 



Female. Length 5 lines. — Black, head strongly punctured, 

 particularly on the clypeus; apex of the mandibles ferruginous; 

 a few scattered griseous hairs on the face below the insertion of 

 the antennae, above it is fuscous. Thorax, the disk shining, 

 sparingly punctured, and clothed with fuscous pubescence, at the 

 sides and beneath ; on the coxae, fringe of the femora and the 

 floccus, it is of a dirty white ; the scopa above fuscous, beneath 

 of a pale golden yellow ; all the tarsi beneath fulvous, the claws 

 ferruginous, as well as the calcariae ; the wdngs subhyaline, 

 having a prismatic reflection, tneir nervures and stigma fusco- 

 ferruginous. Abdomen smooth and shining, the fifth segment 

 clothed with sooty-black pubescence ; beneath, the margins 

 fringed with pale hairs, which have a golden tinge. 



Male. Length 3^ lines. — Closely resembles the other sex, the 

 abdomen having an obscure aeneous tinge, and being of a short 

 ovate form ; the margins of the segments narrowly rufo-piceous. 

 The pubescence in this species slightly magnified is beautifully 

 plumose, particularly on the disk of the thorax, the floccus and 

 scopa of the female. 

 Hub. Van Diemen's Land. 



3. Lamprocolletes cristatus, n. s. 



Female. Length 4^ lines. — Black, the face covered with 

 griseous pubescence, the clypeus covered with large punctures. 

 Thorax shining, sparingly punctured ; the collar has a fringe of 

 fulvous pubescence, the tubercles, scutellum and post-scutellum 

 have dense tufts of the same colour ; wings subhyaline, slightly 

 clouded at the apical margins, the nervures fuscous, the scopa on 

 the posterior tibiae fuscous intermixed with silvery white hairs ; 

 the abdomen very shining, the second and following segments 

 finely punctured at their base, the anal fimbria black ; beneath, 

 the segments have a pale marginal fi-inge. 

 Hab. N. Holland. (Coll. W. Wilson Saunders, Esq.) 



4. Lamprocolletes carinatus, n. s. B.M. 



Female. Length 5 lines. — Head and thorax bright green, 

 with shades of purjole on the clypeus and disk of the thorax ; 

 strongly punctm-ed, particularly on the clypeus and scutellum ; 

 the face thinly covered with short white pubescence ; the thorax 



