T. D. A. COCKERELL. 237 



Pilam and Kagi. One in the U. S. National Museum is from 

 Horisha, Formosa ( T. Fukai) . 

 X. sauteri Friese. 



Formosa {Satiter) . Berlin Museum. The localities are 

 Teraso( April), Chikutoge (May) and Pilam (February). 

 X. sautei'i var. uigrescens Friese. 



Formosa {Smiter). Berlin Museum. The specimens are 

 from Teraso (April), Taihanroku (August), Kaukau (April), 

 and Fuhosho (April). A remarkable scarlet-red beetle, with 

 very large mandibles, was found in the nest of this bee in a 

 tree. I sent a drawing of it to the British Museum, and Mr. 

 Gahan informs me that it is a Cissites, probably C. ynaxillosa 

 Fabr. 

 X. ruficeps Friese. 



Formosa i^Sauter) . Berlin Museum. The locality is Tai- 

 hanroku, August, 1908. The male has the head much smaller 

 than that of the female ; it resembles X. ridescens, but differs 

 in the head. The female is not at all like X. rufescens. 



THYGATINA n. g. {AnthophoHdcz) . 

 Related to the Neotropical genus Thygater Holmberg, but 

 with the second submarginal cell receiving the first recurrent 

 nervure at the end of the the third fifth or second third, the 

 lower side obtusely angled at the junction, so that the cell is 

 pentagonal ; female with clypeus wholly without a keel, and 

 third antennal joint shorter than in Thygater, being about as 

 long as the next two united. Maxillary palpi 3-jointed ; first 

 joint stout, brown; the other two slender, pale ferruginous, 

 the third much longer than the second (in type species third 

 joint is about 145 microns long). Labial palpi with first 

 joint about twice as long as second, the two apical joints very 

 minute. 



Tliygatina fumitla n. sp. — 9 . Length about \2\ mm., width of 

 abdomen a little over 41 ; robust, black, but the labrum slightly red- 

 dish, especially at base, the mandibles with a broad orange-fulvous 

 stripe (but no basal spot), and the tegulae ferruginous with a dark 

 patch anteriorly ; head broad, eyes parallel, facial quadrangle a little 

 broader than long ; mandibles notched at extreme apex ; labrum 

 covered with coarse pale ochreous hair; clypeus dull, with dense elon- 



TRANS. AM. ENT. SOC. , XXXVII. 



