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. rufipalpis (semiannulatus) and A. haploscapus, and in 

 other features most nearly resembles the latter, but certainly 

 differs in the actual form of the vulva &c. 



EXPLANATION OF PLATE XIII. 



Fig. 1. JEresus inornatus, sp. n. Vulva. 



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



Fig. 2/i. Ditto. Palpal organ. 



Fig. 3. Gasteracaniha macrura, sp. n. 



Fig. 4 Storena nyikce, sp. n. Palpal organ, outer view. 



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



Fig. 6. Sarotesius melanognathus, geu. et sp. n. Palpal organ from 



below. 

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

 Fig. 7. Platgthomisus pantherinus, sp. n. 

 Fig. 8. Cgrtarachne lactea, sp. n. 

 Fig. 9. Araneus pachanus } sp. n. Vulva. 

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



from Natal, was described by me in the Ann. & Mag. Nat. 



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



of publishing a full figure of this interesting spider.] 



LV. — New and little-known Hymenoptera taken by Prof. 

 C. H. T. Townsend and Mr. G. M. Barber in New 

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

 Entomology, New Mexico Agricultural College. 



Andrena Barber i, sp. n. 



$ .— Length about 13 millim. 



Kather 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 labrum 

 broad and deeply emaryinate ; antenna} wholly black, first 

 joint of flagellum as long as the three following together ; 

 face, especially 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; mesothorax dull, minutely tessellate, and with rather 

 large shallow punctures ; enclosure of metathorax triangular, 



