MTZINE. 253 



a pale pubescence. Abdomen shining, with distinct bluish reflections; the first seg- 

 ment at the base, and the sides and the apices of the ventral segments, densely covered 

 with long white hair; the third, fourth, and fifth segments above sparsely, shortly 

 haired ; the pygidium longitudinally striolate, glabrous, the apex reddish. Legs 

 densely covered with long white hairs ; the tarsal spines white ; the apices of the tarsal 

 joints and the tibial spines reddish. The wings hyaline in front, suffused from the 

 basal nervure to the apex. A short line on the inner side of the eyes at the top, two 

 marks on the pronotum in front, two small marks on the mesonotum behind, the post- 

 scutellum, a mark on the sides of the first to the fourth abdominal segments above, and 

 one on the sides of the first and second ventral segments, yellow. 



7. Myzine centralis. 



Long. 18 miilim. 



Hab. Costa Rica, Cache, Volcan de Irazu 6000 to 7000 feet (Rogers). 



Agrees with M. toluca in having eight yellow spots on the abdomen, but they are 

 very much larger, and the two on the basal segment are almost united ; there is no 

 yellow on the pronotum or median segment ; there is a yellow mark below the tegulge ; 

 the postscutellum is yellow ; and there js a narrow yellow line on the inner orbits of the 

 eyes. Head with large, deep punctures, closely pressed together above the antenna?, 

 widely scattered on the vertex ; the front ocellus in a pit, and there is an impunctate 

 space in front of it ; there is a furrow down the front ; clypeus finely rugose, with some 

 punctures, the apex fringed with pale hair. Antennas with the scape of the flagellum 

 with large punctures, and bearing long pale fulvous hair ; the flagellum covered with 

 fuscous pubescence. Pronotum coarsely punctured throughout ; the base of the meso 

 notum is impunctate, then follow a belt of minute and another of large punctures ; 

 scutellum with large punctures on the sides, the middle impunctate ; median segment 

 alutaceous, the sides with pale down ; mesopleurae punctured and covered with long 

 white hair. Abdomen shining; the fourth and fifth segments slightly punctured; the 

 pygidium rugose, not very thickly covered with long pale hair ; the sides of the abdomen 

 and the ventral surface also covered with long pale hair. The legs bearing long white 

 hair ; the calcaria white, the tarsal spines reddish ; the metatarsus beneath fringed with 

 fulvous pubescence. Wings subhyaline, the apex broadly fuscous. 



The example from the Volcan de Irazu has on the pronotum two marks in front and 

 an uninterrupted band behind yellow. 



V 8. Myzine parvimaculata. 



Nigra, maeulis abdominis 2 flavis ; alis f usco-violaceis. 

 Long. 18 miilim. 



Hah. Panama, Bugaba 800 to 1500 feet (Champion). 



Head below the ocelli strongly, above them very sparsely, punctured ; a transverse 



