74 Mr. F. Smith on some new Genera and Sj->ecies 



1. Mynnicocrypta squamosa. (Plate IV, figs. 14-17.) 

 31. ochracea ; coi-pore asperrime sqiiamoso ; alis subliyalinis. 



Female. Length li line. Ocliraceous, and covered on every part 

 with separate and not very distant scales, which are of a glittering 

 semitrausparent white, — those on the scape of the antenna and legs 

 most dense, the Hagellmii alone being naked ; the mandibles stout, sub- 

 triangiilar, with seven acute teeth on their inner margin ; the eyes and 

 ocelli black ; the apex of the joints of the antennte fusco-feiTuginous. 

 Thorax : the disk rather darker than the sides or the legs ) the ante- 

 rior tibiaj armed at their apex with a stout flattened spur ; the inter- 

 mediate and posterior pair are not furnished with spines ; the scutellum 

 bidentate ; the verge of the truncation of the metathorax is also bideu- 

 tate. The abdomen is very finely and delicately reticulated, and of a 

 rather darker colour than the head and thorax; the wings slightly 

 colom'ed, semiopake, with the nervures pale testaceous. 

 Hah. St. Paid (Brazil) ; captured by Mr. H. W. Bates. In the National 

 Collection. 



Genus Pheldole, Westw. 

 1. Pheidole diver sa. 

 P. nigra, nitida ; capite maximo, elongato-quadi'ato, postice profmide emar- 

 ginato, antice striato. 



Worker major. Length 3i lines. Black and shining; the head 

 oblong-quadrate, deeply emarginate behind, and with a central deeply 

 impressed longitudinal line ; the scape of the autennte, the mandibles, 

 and anterior margin of the head obscure ferruginous ; the fiagellum 

 rufo-testaceous ; the head longitudinally striated, with the hinder por- 

 tion rugose. The thorax and legs feiTuginous, the former obscure 

 above and coarsely rugose ; the metathorax with two erect acute 

 spines ; the femora and tibite more or less fuscous in the middle above. 

 Abdomen ovate, very smooth and shining ; the insect thinly sprinkled 

 with erect black pubescence. 



Worker minor. Length 1^ line. Pale rufo-testaceous; the abdo- 

 men slightly fuscous above ; the head very smooth and shining, of the 

 ordinary size, as in Myrmica scahrinodiSf thinly covered with erect pale 

 pubescence. 

 Hah. St. Paul (Brazil). 



Subfamily Cryptocekid^, Smith. 



Genus Ckyptoceeus, Latr. 



1. Cryptoceriis quadrimaculatus, lOug. 



Focmina. C. elongatus, aterrimus ; abdomine flavo 4-maculato. 

 Operuria. C. niger, depressus, setis argenteo-nitidis oriiatus; capitis ante 



oculos margiuibus lateralibus pallide ferrugineis ; tibiis ferrugineis ; 



thorace latere utroque spiuis duabus armato. 



