THE SPHECODINE BEES OF THE PHILIPPINE ISLANDS 
By T. D. A. CockERELL 
(University of Colorado, Boulder) 
The genus Sphecodes Latreille consists of small or medium- 
sized bees, usually with red abdomen, widely distributed over 
both hemispheres. The venation, with three submargina] cells, 
well-developed stigma, and arched basal nervure, is much like - 
that of Halictus, but the end of the female abdomen is quite 
without the characteristic rima of that genus. The second sub- 
marginal cell is narrow, higher than broad. Sixteen species are 
known from India, three from Japan, one from Formosa, and 
three from Java. There are also a species in Celebes, one in New 
Guinea, and one in Australia. Up to the present time only one 
Philippine species has been known, but four others may now be 
added. They may be separated by the following table: 
Females eo cldeeaptrgetelniea ebb cinigs <Bxenn’ 1 
Males (joints of flagellum swollen or knotlike) -222..2..22-------ceeeseceeeeeeee- 3 
1. Mesothorax rough and extremely densely punctured...... bakeri Cockerell. 
Mesothorax smooth and shining between the well-separated punc- 
pi te SRE aan ALTE See OFA BEL as MTGE? ST Raaliioh hs Las as SOOO oS SPS IR DT 2 
2. Larger; head - subcireularciscc. chal Scio... rotundiceps sp. nov. 
Smaller; head transversely oval transversus sp. nov. 
8. Larger; head very broad; middle of abdomen red............ latifrons sp. nov. 
Smaller; head not very broad; abdomen dark................ tristellus sp. nov. 
Sphecodes bakeri Cockerell. 
Sphecodes bakeri COCKERELL, Ann. & Mag. Nat. Hist. VIII 16 (1915) 
489, 
MINDANAO, Dapitan (type locality) and Davao. Both from 
C. F. Baker. 
Sphecodes rotundiceps sp. nov. 
Female.—Length, about 9 millimeters; anterior wing, 8; 
black; with the first three segments of abdomen dark red, the 
others black; tarsi ferruginous at apex; head and thorax with 
white hair, conspicuous on sides of face, tubercles, a band ex- 
tending from tubercles down pleura and sides of metathorax; 
head subcircular; mandibles dark reddish apically and with a 
small inner tooth; clypeus short and convex, shining, with large 
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