SOME BEES OF THE GENUS CROCISA. 219 



The pattern of the abdomen is nearly as in the African C. hraun- 

 siana, Friese. 



Hab. Penang (H. N. Ridley). 



Crocisa ir'isana, sp. nov. 

 5 . Length about 10 mm., expanse about 21 ; black, the colour of 

 the markings as in G. ridleyi ; scutellum W-like, but the median angle 

 very broad ; wings brownish, only moderately dark, the colour nearly 

 uniform on anterior pair ; pygidial plate small ; clypeus very minutely 

 punctured ; a strong keel between antennae ; face covered with light 

 hair, but most of clypeus bare ; mesothorax with six large spots, the 

 anterior ones largest, transverse, about half on prothorax ; median 

 line reduced to a small inconspicuous isolated longitudinally elongated 

 spot ; a small patch above each tegula, the teguliB minutely punc- 

 tured, and with a white patch behind ; scutellum dark, wdth some 

 bluish-wdiite hair above the notch, and long white hair (not at all 

 bluish) projecting from beneath ; pleura white-haired (very densely 

 above), with a very broad transverse strongly punctured black band ; 

 anterior and middle femora with some white hair at apex behind ; 

 tibiae and tarsi marked practically as in G. ridleyi ; abdomen marked 

 essentially as in G. ridleyi, except that the first segment is all light- 

 haired at sides, except along hind margin, the light area notched on 

 each side within. 



Hah. Irisan, Benquet Province, Philippine Islands, May 1st. 

 Collector unknown to me. C. emarginata, C. lamprosoma, and 

 C. nitidida have been listed from the Philippine Islands, but 

 their presence there needs confirmation. 



The following species have been previously described : — 



C. quartiiKB, Gribodo, var. a. Markings of abdomen violet. 

 Koepang, Timor. No. 483. 



C. verticalis, Ckll. Amboyua. 



C. basalis, Friese. Semao Island (off Timor). No. 480. 



C. rostrata, Friese. Singapore (H. N. Eidley). 



C. japonica, Friese. Japan. 



C. decora, Smith. Singapore (H. N. Ridley) ; Tjigombong, 

 Java (C. W. Andrews) ; Sadia (= I suppose Sadiya in Assam). 

 This is C. emarginata of authors, but not the true emarginata of 

 Lepeletier. Bingham (' Fasciculi Malayenses,' ZooL, iii. p. 56) 

 ■refers what I suppose to be the same insect to C. decora, and I 

 follow him, not without recognizing a possibility that the true 

 (Chinese) decora is different. The abdominal markings are of a 

 fine turquoise blue, of the same colour as those of C. basalis. 



C. luzonensis, Ckll. Irisan, Philippine Islands, May 30tli. 

 Evidently obtained by the same collector as that of G. irisaua. 

 The blue of first abdominal segment is deeply squarely incised 

 basally, and there are four broad entire bands. 



C. amboinensis, Eads. Amboyna. 



C. massurii, Rads. Dalhousie, N.W. India, July 7th, 1906 



