NO. 1806. BEES IN THE NATIONAL MUSEUM. l.—COCKERELL. 647 



NOMADA FRIESIANA Cockerell. 



This has been known only by the unique type. The U. S. Na- 

 tional Museum contains 2 females collected at Denver, Colorado, 

 May 23, 1898. The name of the collector does not appear on the 

 labels. The insect has a curious superfcial resemblance to the 

 European Pasites maculatus. 



NOMADA HAKONENSIS. new species. 



Male. — Length slightly over 6 J mm.; head and thorax black, 

 densely punctured, with the usual amount of hair, which is pale 

 ochreous above and white beneath; head broader than long; lower 

 margin of clypeus, narrowly in middle, broadly at sides, lower cor- 

 ners of face, ending in a fine point above which hardly reaches level 

 of antennae, labrum, and mandibles except their ferruginous apices, 

 all yellow; mandibles simple; labrum densely covered with light hair; 

 eyes pale greenish; antennae long, black above, ferruginous beneath, 

 the red on the rather stout scape reduced to a streak; third antennal 

 joint hardly half length of fourth; fourth long; fifth longer than 

 third; tubercles and a little of upper margin of prothorax red, but 

 scutellum, etc., wholly black; area of metathorax shining and strongly 

 plicate basally ; femora with much black; tibiae and tarsi red, the tibiae 

 with a weak black stripe; hind basitarsi, dark above; tegulas fer- 

 ruginous ; wings strongly dusky on apical margin ; stigma and nervures 

 dark ferruginous; h. n. going far basad of t. m.; second s. m. about 

 as broad above as below, receiving first r. n. before the middle; 

 abdomen shining, without distinct punctures, dull ferruginous 

 marked with black, the markings suffused, the general effect being 

 very dark red; first segment with the basal half black, the black 

 broadly lobed in middle, and having a dark spot on each side; the 

 other segments obscurely blackish at base; hind margins of segments, 

 especially the posterior ones, more or less pale golden; apical plate 

 deeply notched; venter dark ferruginous. 



Habitat. — Hakone, Japan (Koebele). 



Type.— Cat. No. 13430, U.S.N.M. 



A small species of Nomada s. sir., quite different from all those 

 reported from Japan, but superficially like the European N. Jiavo- 

 guttata. In Schmiedeknecht's table it runs near to N. fabriciana 

 (Linnaeus), but it is by no means identical. 



NOMADA XANXmDICA Cockerell. 



A slight variety of the female having the metathorax wholly black. 

 Two from Peking, China (M. L. Robb). One is dated May 7, 1901. 



NOMADA ZEBRATA Cresson. 



Male. — At flowers of Heliantlius pumilus, Boulder, Colorado, 

 July 21, 1908 (S. A. Rohwer); female, Fort Collins, Colorado, 1899 

 (No. 26). 



