ASHMKAD: CI,A88I|-I<ATI0X of the CIIALCID FLIES 429 



the apical lialf or more of front and middle femora and their tilji^e and tarsi, a large 

 spot on upper outer angle of liind femora and the hind tarsi, yellow. Abdomen 

 ovate, the basal half yt'llowish, the apical half black ; the petiole is short, hardly 

 twice as long as thick. 



Male. — Length 6 mm. Agrees well with the female, except the middle meso- 

 thoracic lobe is margined with yellow, the scutellum has two large yellow spots at 

 the sides, the front and middle legs, except the coxa3, are yellow, while the abdom- 

 inal petiole above is yellow and five or six times as long as thick. 



Brazil : Santarem ; Chapada, in August. One male and thi-ee female specimens. 



SiMI.OCHALCIS EUF0DOR.S.\LIt5, .sp. IIOV. 



Female. — Length *S' mm. INIostly red and almost smooth, the mesopleura, the 

 reticulated metathorax and the hind coxae, except at base beneath and at apex, 

 being black ; flagellum brown-black ; front and middle legs, tips of hind coxie, the 

 hind tarsi, and the petiole of the abdomen yellow. The abdomen is ovate, the 

 petiole hardly five times as long as thick. 



Brazil : Santarem. One specimen. 



Spilociialcis laticep.s, sp. nov. / 



Female. — Length 8.5 mm. Mostly red and feebly punctate, the sutures of thorax 

 dusky, the pronotum yellowish ; the scape, the front and middle legs, except the 

 thickened part of the front and middle femora and the middle tibite basally, and 

 the hind tarsi, are yellow ; hind legs reddish, the hind coxae with a dusky spot 

 above toward base. The abdomen is ovate, the petiole yellow and about thrice as 

 long as thick. The head is abnormal, seen from in front, about twice as wide as 

 long, the face being concave ; the eyes are large, rounded and occupy nearly tiie 

 whole sides of the head, the temples being flat, undeveloped. 



Brazil : Santarem. One specimen. 



SPir.OCHALClS NIGROPETIOLATA, sp. nov. 



Female. — Length 4 mm. Mostly red and faintly rugulosely ])unctate, the midtlle 

 mesothoracic lobe posteriorly and the petiole of the abdomen being black ; the 

 flagellum, except the first three joints beneath, is brown-black ; the front and middle 

 legs are yellowish ; the hind legs ai-e pale ferruginous ; while the body of the abdo- 

 men is pale ferruginous with a black spot on the disk above. 



Brazil: Santarem. One specimen. 



SPILOC1IALC18 RUFOSCUTELLARI.S, sp. UOV. 



Female. — Length 8 mm. Black, faintly punctate, the middle mesothoracic lobe 

 posteriorly, the lateral lobes and the scutellum red ; scape, tegula?, the front and 



