SPHiEKOPHTHALMA. 367 



long, pale at the base, blackish at the apex ; the second segment is coarsely punctured 

 on the black base and apex, where the hair is black ; on the orange band the hair is 

 pale ; the third and fourth segments are covered with long black hair, the fifth and 

 sixth densely clothed with silvery pubescence all over. The ventral surface is black, 

 except the base of the fourth segment, which is pale yellow ; the apices of all the 

 segments are fringed with long silvery hair ; the second segment with large punctures ; 

 the basal segment strongly punctured laterally, its base and apex oblique, the keel a 

 little depressed in the middle, not raised at the base or apex. The wings are fusco- 

 violaceous, clear at the base and in the middle ; the radial cellule short and broad, 

 about as long as the first cubital cellule ; the basal abscissa of the radius oblique, the 

 apical abscissa a little curved ; at the bottom the first cubital cellule is as long as the 

 second ; the first transverse cubital nervure is curved, the second elbowed in the 

 middle ; at the top the second cubital cellule is a little longer than the space bounded 

 by the first transverse cubital and the first recurrent nervures ; the latter is received in 

 the basal fourth of the cellule ; the third cubital cellule reaches near to the apex of 

 the radial ; the lower part of. the third transverse cubital nervure is indistinct, and 

 reaches near to the second. 



118. SphsBrophthalma relata. 



Nigra; capite, thorace abdominisque apice albo-pilosis ; abdominis segmento 2° maculis 2 aurantiis ; alis fusco- 



violaceis. $ . 

 Long. 12 millim. 



Hah. Mexico, North Yucatan (Gaumer). 



The head distinctly narrower than the thorax, a little rounded in front and behind ; 

 covered all over with a dense dull silvery pubescence ; the part behind the eyes not 

 half their length ; the antennal tubercles rufous ; the mandibles black and bearing 

 rather long black hair. The antennae not much longer than the thorax, black ; the 

 scape covered with longish silvery hair ; the flagellum with a fuscous down; the third 

 joint a little shorter than the fourth. The thorax is more than twice the length of 

 the head, and half the length of the abdomen ; it is a little contracted behind the 

 points of insertion of the wings; black, the pronotum and the scutellum densely 

 covered with dull silvery pubescence ; the mesonotum is very coarsely punctured, and 

 covered with stiff black hairs ; the depression at the base of the scutellum is wide and 

 deep, and the middle of the scutellum projects into it as a shining, bare, triangular 

 tooth. The median segment has a sharply rounded slope and is coarsely reticulated ; 

 the base is covered with a depressed silvery pubescence ; and in the middle is an elon- 

 gated shagreened area, rounded at the apex. The pro- and mesopleura? bear lar^e, 

 round, widely separated punctures, and are sparsely covered with pale hair; the meta- 

 pleuras are coarsely reticulated, and bear long pale hairs. The abdomen is black, 

 except for two large pale orange-yellow macula? on the apex of the second segment ; 



