308 ENTOMOLOGICAL SOCIETY 



Wheeler, in Texas, living in the nest of the harvesting ant, Pogo- 

 nomyrmex barbatus Smith, and was sent to me some months ago. 

 It may be predaceous upon some of the curious arachnids living 

 in ant nests in Texas. 



Myrmecosalius, n. gen. 



9- Wings rudimentary, narrowed, not quite reaching to the metathora- 

 cic spiracles, and with only two basal cells, the stigma, radial, cubital and 

 discoidal cells being wholly absent; head, legs, and abdomen as in Salius 

 {Priocnemis)\ thorax narrowed, the prothorax only two-thirds as wide as 

 the head, the mesothorax contracted, the mesonotum being rather small, 

 shorter, and much narrower than the pronptum ; the scutellum is small, 

 rounded behind, the postscutellum hardly one-third the length of the scu_ 

 tellum ; metathorax longer than wide, convexly rounded, the spiracles 

 linear. <$ unknown. 



Myrmecosalius nigriceps, n. sp. 



9- Length, 5.5 to 6 mm. Head, except the clypeus, the mandibles, 

 and the palpi, and the antennae, except the first three joints, which are 

 brownish-yellow, black; the clypeus, mandibles, thorax, legs, and the 

 abdomen, except the pygium and the hypopygium which are black, wholly 

 ferruginous. The head is finely, closely punctulate, opaque, the thorax 

 finely, microscopically shagreened, while the abdomen is smooth, shining, 

 although under a strong lens it is seen to be microscopically shagreened 

 and finely sericeous or downy. 



Type. No. 6820, U. S. National Museum. 



Dr. Howard referred to a recent paper by Mr. Charles T. 

 Brues in the Biological Bulletin on the messmates of ants of the 

 genus Jzciton. Among the species treated in this paper as found 

 in these ants' nests were some Proctotrypoids belonging to new 

 species in the Ceraphronidas, and a Telenomus. It was note 

 worthy, he said, that no aphids nor coccids were found in the 

 nests, but a large number of flies of the family Phoridse. The 

 Ceraphronids were probably parasitic upon the Phori-d larva?, 

 but what did the Telenomus parasitize ? Dr. Howard thought 

 they possibly attacked the ants' eggs. 



Mr. Ashmead said he thought they might be parasitic on 

 spiders' eggs, as spiders had been found in some of the ants' 

 nests. 



Mr. Warner showed a hymenopterous parasite belonging to 

 the Proctotrypoid genus Scelio, stating that he had found it 

 attached by its mandibles between the base of the wing and the 



