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,
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