.1 FFENDIX—HYMENOPTEBA . 93 



above there is a distinct margin separating tlie posterior aciculatetl portion 

 from the anterior sulcated region. In front of the petiole, close to its 

 junction with the metathorax, is a l>lunt tnbercle, behind this the petiole is 

 tinely striated laterally. Directly in front of the metathorax it is aciculated, 

 above there is a distinct margin. The sides of the petiole are slightly com- 

 pressed. Separating the petiole from the abdomen is a broad (comparatively) 

 belt-like constriction, smooth, shining, very finely transversely striated. A 

 similar constriction is between the 1st and 2d segments ; it is contracted a 

 little at the side, expanding again on the ventral surface. The lower half of 

 the sides of the 1st segment is smooth, shining, impunctate, as are also the 

 remaining abdominal segments ; these liear above some short, glistening 

 hairs ; beneath some longer pale hairs. Legs stout, smooth shining. For 

 Figure see the accompanying Plate. 

 Length, 8 mm. 



Odontomachus, Latr. 



9. Odontomachus lurmatodes, Lin., Syst. Nat., ii, \k !)fi5. 



Hab. Guayaquil. Two examples. 



Pheidole, Westw. 



10. Pheidole inoaticola, sp. n. 



Hab. Cayambe village (9320 feet), workers ; Penipe to Rioliamlia (9000 

 feet), soldiers; the Panecillo, Quito (10,000 feet), females and workers. 

 Numerous specimens. 



Soldier. Blackish fuscous ; the abdomen more or less obscured with tes- 

 taceous, thorax with piceous ; mandibles ferruginous ; more or less of face 

 below the antennte and basal half of scape obscure ferruginous ; apex of last 

 joint of antennae castaneous. Mandibles shining, inner edge black, acute, 

 inner half with some minute punctures ; covered with a pale pubescence 

 longest on lower side ; apex bidentate. Head covered with a depressed 

 pile, shining, smooth, obscurely alutaceous in front ; frontal lamin;e curved, 

 dilated in middle ; frontal fovea absent, area raised, a depression at its base ; 

 separated clearly fi'om clypeus, which is obscurely imnctured, covei'ed with 

 a pale, scattered, depressed pile. Pronotum almost shining, scarcely punc- 

 tured ; meso- and metanotum minutely punctured, semi-opaque ; metathorax 

 Avith two stout, slightly diverging spines ; the space between these and 

 behind smooth, shining, almost impunctate. Petiole half-shining, completely 

 so at base, which is testaceous ; first node depressed in centre of top ; second 

 double wide as long, aciculated, sides projecting, rounded. Abdomen half- 

 shining, obscurely aciculated, the junction of segments pale ; covered sparsely 



