NO. 1806. BEES IN THE NATIONAL MUSEUM. l.—COCKERELL. 641 



CROCISA JAPONICA Friese. 



One from Japan. C. centrimacula Perez, also from Japan, and pub- 

 lished in the same year (1905) is very closely allied, but apparently 

 separable by the pattern of the first abdominal segment, the white 

 (instead of blue) hair on hind basitarsi, and some other small details. 



BOMBUS SAPPOROENSIS, new species. 



Female. — Like the European B. terrestris Linnaeus, but hair on last 

 three abdominal segments pale reddish-fulvous; yellow bands on 

 second abdominal segment and prothorax pale and dull, the thoracic 

 one with black hairs intermixed; labrum with a transverse curved 

 ridge, and below this much red hair; third antennal joint about as 

 long as fifth, fourth a little shorter; malar space broader than long. 



Habitat. — Japan; from M. Matsumura, Sapporo Agricultural Col- 

 lege. This is a Japanese form of terrestris, regarded as a distinct 

 species because the European terrestris seems to present no such color- 

 variety. B. terrestris jajjonicus Friese, 1909, has the end of the abdo- 

 men black; it may perhaps be a variation of sajjporoensis, but if so, 

 the name japonicus is not available, having been earlier used by 

 Dalla Torre. B. liarmandi Perez has the abdomen colored like that 

 of sapporoensis, but it is a species w^ith elongated head, allied to 

 B. hortorum. 



Type.—Csii. No. 13425, U.S.N.M. 



BOMBUS SENILIS Smith. 



One worker; Sapporo Agricultural College, Japan, December, 1896 

 (M. Matsumura). Smith described only the female. The worker 

 looks exactly like B. silvarum, but the specimen before me has the 

 light pubescence creamy-white, with a strong yellow tinge on the 

 second abdominal segment. 



BOMBUS DIVERSUS Smith, 1869. 



Eleven from Japan; some collected by Mitsukuri. One is from 

 Tokyo. These agree with a diversus from F. Smith's collection. 

 Friese makes both diversus Smith and japonicus Dalla Torre {termi- 

 nalis Smith, 1873) varieties of B. hortorum, subspecies ussurensis 

 Radoszkowski, 1877. If this is considered correct priority demands 

 that diversus be used for the subspecies. 



BOMBUS IGNITUS Smith. 



Seven from Japan; some collected by Mitsukuri. Very like 

 B. lapidarius Linnaeus, but malar space shorter. Perez considers 

 that it is structurally nearer to B. terrestris. The pubescence of 

 ignitus varies, the black becoming a dark chocolate brown, as is also 

 seen in B. hsemorrlioidalis. This brown variation is especially marked 

 in a female labeled "South Cliina." This Chinese ignitus is readily 

 known from B. simillimus Smith by the paler wings. 



Proc.N.M.vol.39— 10 43 



