448 Mr. T. D. A. Cockerell on 



zori. The latter, on account of the better state of its 

 preservation, has been selected as the type. 



In the form of its vulva this species approaches both 

 A. rvjipalpis (semiannulatus) and A. haploscnpus, and in 

 other features most nearly resembles the latter, but certainly 

 differs in the actual form of the vulva &c. 



EXPLANATION OF PLATE XTIL 



I'lff. 1. Eresus inomatus, sp. n. Vulva. 



Fig. 2. Araneus streptoceros^ sp. n. Vulva. 



Fig. 2 a. Ditto. Palpal organ. 



Fig. 3. Gasteracantha macrura, sp. n. 



Fig. 4. Sturena nyikce, sp. n. Palpal ororau, outer view. 



Fig. 5. Sparassus croceiceps, sp. u. Vulva. 



Fig. 6. Sarotesius Tnelanognatht^, gen. et sp. n. Palpal organ from 



below. 

 Fig. 6 a. Ditto. Tibial spur of palp. 

 Fig. 7. Platythoynisus 2Mntherinus, sp. n. 

 Fig. 8. Cgrtarachne Jactea, sp. n. 

 Fig. 9. Araneus paehanus, sp. n. Vulva. 

 Fig. 10. Araneus coccinella, Poc. [This species, based upon a specimen 



from Natal, was described bv me in the Ann. k Mag. Nat. 



Hist, for September last (p. 211). I take this opportunity 



of publishing a full figure of this interesting spider.] 



LV. — New and Jittle-hnoion Hymenoptera taken hy Prof. 

 G. H. T. Townsend and J/r. C. M. Barber in New 

 Mexico in 1898. By T. D. A. Cockerell, Professor of 

 Entomology, New Mexico Agricultural College. 



Andrena Barheri^ sp. n. 



? .— Length about 13 millim. 



Rather stoutly built, black. Head rather broad, facial 

 quadrangle about square, vertex granulate, front below ocelli 

 strongly longitudinally striate ; clypeus minutely tessellate 

 and strongly punctured, the median line free from punctures 

 but not smooth ; mandibles wholly dark, process of lahruni 

 broad and deeply emarginate ; antennce xoholly black, first 

 joint of flagellum as long as the three following together ; 

 face, especiall}' at sides, cheeks, and occiput with fairly abun- 

 dant greyish-white conspicuously plumose hair, on the vertex 

 more or less blackish. Thorax with greyish-white pubes- 

 cence, except on the mesothorax and scutellum, where it is 

 sooty] mesotliorax dull, minutely tessellate, and with rather 

 large shallow punctures ; enclosure of metathorax triangular, 



I 



