SPH^EROPHTHALMA. 319 



v 12. Sphserophthalma beata. (Tab. XIV. fig. 4, $ .) 



Long. 6 millim. $ . 



Hob. Panama, Bugaba 800 to 1500 feet {Champion). 



Head slightly wider than the thorax, black, thickly covered with a dull silvery 

 pubescence, and with some rather long fuscous hairs ; behind deeply and roundly 

 concave ; the keel above terminating in a short tubercle. The thorax not twice the 

 length of the head, not much narrowed towards the apex, ferruginous, sparsely covered 

 with long fuscous hairs ; the sides not narrowed, with a small round incision at the 

 middle only, which has a tubercle at its base ; closely and rather strongly punctured ; 

 the median segment with a gradually rounded slope. The abdomen black, covered 

 with a short stiff pile, and with long black hairs ; down the centre is a straight line of 

 white pubescence, and in the middle is a transverse line of similar pubescence ; the 

 terminal segment is smooth; The ventral segments are covered with long white hairs ; 

 the basal segment is ferruginous. The legs are ferruginous and covered with white 

 hairs. The antennae are black, with the four basal joints ferruginous; the third joint 

 is nearly twice the length of the fourth. 



S, beata agrees practically in coloration with S. inimica; but that species may be 

 readily known from it by the thorax being longer compared to the head, and much 

 more narrowed behind, with the base oblique (not rounded) and ending in two teeth, 

 and the sides of the median segments stoutly spined. 



^ 13. Sphaerophthalma caltha. (Tab. XIV. fig. 6, $ .) 



Long. 7-8 millim. $ . 



Hah. Panama, Volcan de Chiriqui (Champion). 



Head a little wider than the thorax, black, rather thickly covered (especially on the 

 front) with long white hair ; broadly, but not deeply, concave behind, bluntly rounded 

 in front; the sides ending in stout curved keels. The mandibles are ferruginous. The 

 antennas are rather long, entirely black ; the third joint twice the length of the fourth. 

 The thorax is ferruginous, not much longer than the head, hardly narrowed towards 

 the apex; the base semi-oblique laterally; the middle slightly incurved, with a tubercle 

 in the centre ; the median segment with a gradually rounded slope. The abdomen 

 black, velvety ; in the centre of the second segment are two elongated, transverse, 

 yellowish-white maculse ; the pygidium shining, minutely punctured, densely covered 

 with a silvery-golden pubescence. The legs black, and covered with silvery 

 pubescence. 



Compared with S. inimica and S. beata this species has the keels behind the head 

 much more developed ; and it further differs in having the head black. 



