SPH^KOPHTHALMA. 339 



punctate, the rest of the segment being closely punctured ; the second segment is 

 closely, rugosely punctured ; the third segment is shining, finely transversely striated. 

 The first and second segments bear long black hairs ; the fourth and following segments 

 are fringed with longish silvery hair ; the basal segment is reddish, suffused with black, 

 the second black, with two transverse yellow marks bordered with reddish, the third 

 blackish at the apex, reddish at the base, the others black. The legs covered with 

 silvery hair ; the hinder femora suffused with fuscous. 



b. The head ferruginous. (Species 45-52.) 



1 (2) . The thorax laterally with long sharp spines subgracilis. 



2 (1). The thorax without long spines. 



3 (4). The abdomen black, with four yellow marks on the second segment; the 



thorax deeply incised cephalica. 



4 (3) . The abdomen for the greater part ferruginous, without yellow marks ; 



the thorax not deeply incised. 



5 (6) ; The thorax at the apex with short blunt teeth odiosa. 



6 (5,)».i The thorax at the apex without teeth. 



7 (12). The second abdominal segment without a broad yellow band. 



8 (9). The thorax elongate, narrowed towards the apex, and with four black 



marks down the sides above, much narrower than the head .... ludovica. 



9 (8). The thorax not elongate, not narrowed towards the apex, and without 



black marks. 

 „0 (11) . The thorax a little incised at the middle, entirely ferruginous ; the black 



marks at the base of the second abdominal segment widely separated . rustica. 



11 (10). The thorax not incised, and with a black line down the middle . . . ingrata. 



12 (7). The abdomen black, with a broad yellow band on the second segment. 



13 (14). The part of the head behind the eyes equalling them in length; the apex 



of the abdomen black minutoria. 



14 (13) . The part of the head behind the eyes not equalling them in length ; the 



apex of the abdomen golden . gratiosa. 



\/45. Sphaerophthalma subgracilis. (Tab. XIV. fig. 21, $ .) 



Long. 6 millim. $ . 



Hal. Panama, Volcan de Chiriqui 4000 feet {Champion). 



Colour rufo-testaceous, the apex of the second, and the third and fourth abdominal 

 segments black. Head with the eyes a little wider than the thorax, slightly convex in 

 front, much narrowed behind, the hinder angles rounded, the central part somewhat 

 convex ; the part behind the eyes slightly exceeding them in length, the eyes them- 

 selves projecting largely ; finely rugose, and covered with a golden pubescence, but not 

 so thickly as to hide the sculpture; the clypeus impunctate, shining; the mandibles 

 entirely ferruginous, sparsely covered at the basal half with long hairs. The scape of 



2 xx 2 



