288 



bulletin: Ml skim of compakative zoology. 



the nest is clisturhed. Tliosr individuals not completely hidden remain 

 motionless. It is fond of plant-juices and workers are commonly 

 seen on smaller plants. 



Excepting; the uniformly larger size and the black color, T can detect 

 no ditferenee that will separate the workers oi froggatti from arancoides 

 described originally from Bougainville. 



13. DiscoTHYREA CLAVicoRNis Emery. 

 Term, fuzet., 1897, 20, p. 593, pi. 15, fig. 39, 40, S . 



A small colony containing three females and a dozen workers was 

 found beneath a log in a swamp near Fulakora, Ysabel. The worker 

 is more active than those species of Proceratium and Sysphincta that I 



Fig. 6. — Discothyrea clavicornis Emery. Wing of female. 



have seen. The rich brownish red color, with the microscopic silky 

 pubescence give the living insect an elegant, shagreened appearance. 



The female measures 2 mm. in length and is rather more robust, 

 but otherwise similar to the worker, except for the usual sexual differ- 

 ences. The eyes are larger and somewhat convex. The ocelli are 

 distinct, arranged in an equilateral triangle. The wings (length 2 mm.) 

 are hyaline and densely covered with fuscous hairs; veins and stigma 

 are fuscous. 



14. EcTOMOMYRMEX EXARATA Emery. 



Term, fuzet., 1902, 26, p. 156, g . 



I am referring to this species three workers. The mandibles are 

 heavily strigose, with 6-7 teeth on the blades. The third funicular 



