COLLECTED AT BACniAN, KAISAA, ETC. 107 



from a worker or ueuter insect. I have been unable to trace tbe 

 labial palpi, and had only a single individual for examination. It 

 will be seen that Mesoxena partakes of the characters of two very 

 distinct families, the Foneridce and the Gryptoceridce. ; of the 

 former, in the character, or form of the head, thorax, and pedun- 

 cvdar node; and of the latter, in the enlargement of the basal 

 segment of the abdomen. 



I. Mesoxena MiSTURA. M. nigra; antennis apice, femoribus basi, et 

 tarsis pallide ferrugineis. 



Worlcer. Length 2 lines. Black, subopake, smooth and impunctate ; 

 the antennae nearly as long as the thorax ; the apical half of the fla- 

 gellum rufo-testaceous ; the eyes very })rominent. Thorax oblong, 

 the sides very slightly contracted in the middle, slightly rounded in 

 front and behind ; the tip of the coxae, the trochanters, the extreme 

 base of the femora and tarsi, rufo-testaceous. Abdomen subovate ; 

 the node of the peduncle subglobose, truncate in front, and rounded 

 behind. (Plate I. fig. 10.) 



Hah. Bachian. 



Fam. MTEMICID.^, Smith. 

 G-en. Mtrmica, Latr. 



1. Myrmica OBLONGA. M. rufo-fusca ; abdomine fuscescente, ajtice 

 pallido ; metathorace declivi, mutico. 



Worker. Length 1| line. Obscure ferruginous, with the antennae, 

 head anteriorly, mandibles, legs, and the apex of tbe abdomen, pale 

 ferruginous. The bead oblong and delicately striated ; the eyes small 

 and placed forward at the sides of the head. Thorax smooth and 

 shining, with a few dehcate scattered punctures anteriorly. Abdo- 

 men oblong-ovate, the apex pointed ; thinly sprinkled with pale 

 glittering hairs. 



Hab. Bachian. 



2. Myrmica poneroides. M. fusco-nigra, sparse palUde pilosida; 

 mandibuhs, antennis pedibusque ferrugineis ; capite et thorace longi- 

 tudinaliter striatim rugulosis. 



Female. Length 2 lines. Dark fuscous, approaching blackness ; the 

 head and thorax subopake, the nodes of the peduncle and the abdomen 

 smooth and shining; the antennae, clypeus, mandibles, and legs, fer- 

 ruginous ; the club of the flagellum three-joiuted. The bead and 

 thorax covered with an irregular longitudinal rugose striation ; a 

 smooth shining line runs from the anterior stemma to the base of the 

 clypeus, and a similar line divides the thorax down the middle. Ab- 

 domen oblong-ovate, the apex with glittering pale pubescence. 



Hab. Bachian. 



This species has the general appearance of a Pnnera, and, were it not 



8* 



