HYMEXOPTERA. 



8. CECODOMA INSULARIS. 



Atta insularis, Guer. Icon. Reg. Anim. iii. 422. 3 . 

 Hab. Cuba. 



9. (EcoDOMA MEXICANA. PI. X. fig. 20. B.M. 

 Atta fervens, Say, Bost. Journ. Nat. Hist. i. 290. 



Female. Length 8-9 lines. Obscurely ferruginous, nearly 

 black ; closely resembling (E. cephalotes, but the thorax is more 

 elongate; the second node of the abdomen wider, with the 

 lateral angles produced and acute; the base of the abdomen 

 truncated, the first segment longer than broad ; in other respects 

 resembling (E. cephalotes, but more hairy or downy. 



Male. In size and form resembling the male of (E. cepha- 

 lotes ?, but of a uniform pale reddish yellow; the second abdominal 

 node much wider. 

 Hab. Mexico. 



The insect described as Icevigata is probably the worker of 

 this species ; in the Museum are several specimens from Mexico. 



DIVISION 2. 



The first submarginal of equal width throughout, transverse 

 at both extremities, the recurrent nervure uniting with the trans- 

 verse nervure at the base of the marginal cell ; body tuberculate. 



10. (ECODOMA ASPERSA. PI. X. tig. 17- B.M. 



Female. Length 3i lines. Brown -black : the head and abdo- 

 men roughened, covered with short sharp spines ; the mandibles, 

 scape, sides of the face, its anterior margin, the caring between 

 the antennae and the spines on the vertex, ferruginous. Thorax 

 ovate, with two bright ferruginous longitudinal lines on the meso- 

 thorax; the scutellum and post-scutellum ferruginous; a straight, 

 stout, acute spine on each side of the thorax in front, and two longer 

 bent acute ones on the metathorax, ferruginous ; wings yellowish 

 hyaline, the nervures pale ferruginous; the legs of moderate 

 length, roughened with short spines and stiff hairs. Abdomen : 

 the first node armed with a stout blunt spine on each side ; the 

 second node with numerous short spines on each side, the sides 

 red; the first segment flattened towards the base, which has a 

 ferruginous spot on each side; the apical margins of the seg- 

 ments more or less ferruginous. 

 Hab. Brazil. 



The close resemblance between this species and (E. hystrix 

 leaves little doubt of the latter being the worker of the present 



