T. D. A. COCKERELL. 245 



Greeleyella polytricha (Ckll.). 



Mr. Birkmann sends me numerous specimens of both sexes, 

 which he has taken mated. The female is Greeleyella resinata 

 Ckll., 1910, and the male Panurgimcs polytrichia Ckll., 1909. 

 From the description I thought it possible that Viereck's 

 Birkmania andrenoides (published about twenty-five days later 

 than P. polytrichits) might be the same insect, but Mr. S. A. 

 Rohwer, after comparing my despription of G. resinata with 

 Viereck's type, concludes that they are not identical. They 

 are, however, certainly congeneric. 



A male and female G. polytricha are marked as from 

 flowers of Allium. 



Nomioides perditellus Ckll. 



Described from the female. The male is more slender, 

 head greenish-blue, thorax shining blue ; eyes strongly con- 

 verging below; clypeus, labrum and mandibles (except 

 rufous tips) yellow; scape extremely short, yellow in front ; 

 flagellum long, brown above, pale yellowish beneath ; ab- 

 domen dark brown, with only one yellow band, on basal part 

 of third segment, this narrowly interrupted in the middle, 

 and squarely cut off some distance from lateral margins ; 

 apical plate broadly truncate, the truncation slightly emargi- 

 nate. Female ; var. a. Head and thorax yellowish-green ; 

 a short transverse yellow band on hind border of meso- 

 thorax, and a similar one on postscutellum. 



Hab. — Mackay, Queensland, March, 1900 {Turner 438). 

 The sexes were associated by the collector. This is the only 

 Australian Nomioides. 



Trigona tescorum sp. nov. 



Worker. Length about S\ mm., short and broad, black, head and 

 thorax dull, metathorax and abdomen shining ; wings strongly suffused 

 with reddish-brown ; face broad, with a fine white pruinosity. 



In Friese's table (Die Bienen Afrikas) this runs nearest 

 to T. clypeata, from which it is easily known by its larger 

 size, less shining face, clypeus not pale margined, and dark 

 wings. In T. clypeata the b. n. meets the t. m., in T. tescorum 

 it falls short of it. In clypeata the abdominal segments are 



TRANS. AM. ENT. SOC, XXXVI. AUGUST, 1910. 



