318 HYMENOPTERA. 



5 (2). The abdomen with a broad band or mark. 



6 (9). The head black ; the abdomen with a golden or silvery band on the second 



segment. 



7 (8). The thorax red, without teeth; the legs black caltha. 



8 (7). The thorax black, stoutly toothed ; the legs ferruginous euryclea. 



9 (6). The head ferruginous ; the second abdominal segment for the greater part 



golden,, with a black square mark at the base ■ . animosa. 



10 (1). The head not acutely produced behind, the edges rounded. 



11 (12). The third joint of the antennae twice the length of the fourth .... damia. 



12 (11). The third joint of the antennae not much longer than the fourth . . . extinctor. 



* 11. Sphaerophthalma inimica. (Tab. XIV. fig. 2, $ .). 



Nigra, basi antennarum, thorace pedibusque ferrugineis ; abdomine albo-lineato. $ . 

 Long, fere 9 millim. 



Hab. Panama, Volcan de Chiriqui 2500 to 4000 feet (Champion). 



The head wider than the thorax, quadrate, almost transverse in front, concave 

 behind ; the hinder angles sharply keeled, ending at the bottom in a blunt tubercle 

 the keel above projecting obliquely a short distance on to the vertex ; closely, but not 

 very strongly, punctured, and thickly covered with short silvery-fulvous pubescence. 

 The oral region and the mandibles ferruginous. The eyes project a little beyond the 

 back part of the head, this being nearly twice the length of the eyes. The antennae 

 with the scape, the second joint, and the base of the third joint broadly, ferruginous, 

 the rest black ; the scape bare, the third joint twice the length of the fourth. The 

 thorax is rounded at the base, contracted at the middle, the apical part narrower than 

 the basal ; the sides at the base are oblique, rough ; before the middle-contraction are 

 two stout curved teeth, the basal being the larger and thicker of the two ; on the side 

 of the median segment are five stout teeth. The upper part of the thorax is mode- 

 rately coarsely punctured, and bears a short, sparse, white pubescence ; the median 

 segment has a gradually rounded slope, and is more thickly clothed with hairs than the 

 mesonotum, the hairs, too > being longer. The pleurae are entirely impunctate. The 

 basal segment of the abdomen is obscurely punctured, sparsely pilose, and black ; the 

 second segment is black, with a straight line of white pubescence down the centre, 

 there being another white line across its apex ; there is an obscure white line down the 

 centre of the third segment ; the third and following segments are covered with an 

 obscure, dull rufous, depressed, velvety pubescence, which is seen best when the insect 

 is viewed laterally. The pygidium is distinctly punctured and sparsely covered with 

 white hair. The basal ventral segment is ferruginous, the apex bluntly keeled, the 

 keel more distinct and projecting at the top ; the second segment has the punctures 

 moderately large; the apical segments are ferruginous ; the hypopygium is punctured; 

 the pubescence is sparse and whitish. The legs are ferruginous throughout ; the hair 

 sparse ; the calcaria white ; the tibial spines are rather long, sharp, and blackish. 



