330 PROCEEDINGS OF THE NATIONAL MUSEUM vol. loi 



5. Inner pair of black spots closely placed between the usual pair. Incurved 



orbital bristles absent. Mesopleuron with triangular black spot, sterno- 

 pleuron black except for yellow upper margin, bordered with black line; 

 a black spot above the hind coxa on pleura and another on the pleuro- 

 tergites. Second to fifth abdominal tergites each with two pairs of 

 lateral black spots. Second basal cell entirely yellow. Ovipositor sheath 

 as long as last two tergites together, with tip black. Apical process of 

 anal cell about one half as long as entire cell. 5.3 mm. Perd. 



9 quadriseriata Hendel 



- Lateral pair of black spots exceptionjl, each stands between upper and lower 



postalar bristles (pa), inner pair commonly present. Inner vertical and 

 genal bristles, outer occipital cilia (occe), and genal hairs black. Three 

 pairs of incurved lower orbital bristles. Pleura with three black spots: 

 one on sternopleuron, one above hind coxa, and one on pleurotergites; 

 upper margin of sternopleura bordered with black line. Eyes in profile 

 wide ovfl, 1.6 times as high as wide. Fifth abdominal tergite 1.6 times 

 as long as fourth. Entire anal cell 2.0-2.2 times as long as the long apical 

 process. Dorsocentral bristle pair halfway between suture and supra-alar 

 (so) bristles. 4.9-5. 1 mm. Southern Brazil: SSo Paulo. 



cf carrerai new species (p. 341) 



6. Wing pattern as in kelloggi: a well-delimited large roundish opaque brownish 



black spot present on apical process of anal cell. Frons without vittae. 

 Pleura black except for reddish yellow upper half of mesopleuron and 

 pteropleuron. Mediotergite entirely shining black. A pair of small 

 black spots on mesonotum, each situated at termination of branches of 

 transverse suture; last third of mesonotum shining black, separated by 

 two longitudinal linear vittae into three large spots (the median being the 

 largest). Abdomen shining reddish yellow, third to fifth tergites each 

 with a pair of large lateral black spots, variable in form and size. 4.5 mm. 

 Bolivia c? atimeta Hendel 



- Wing pattern normal. Pleura yellow with black spots. Frons conspicuously 



vittate: two lateral vittae along eyes and a median one covered with 

 shining white pruinosity; between these, two testaceous yellow vittalike 

 intervals. Anterior part of mesonotum without black spots. Medio- 

 tergite shining testaceous yellow to reddish brown, without black 

 spots 7 



7. Apical third of median tibia brownish, compressed, and dorsoventrally dilated, 



with a dorsal group of about 20 strong black bristles as in penicillata. 

 Pleura with three black spots: a large one on sternopleuron, one above 

 hind coxa, and a double one on pleurotergites; narrow upper margin of 

 the sternopleuron bordered with black. Second to fourth abdominal 

 tergites each with a pair of large lateral black spots; the short fifth 

 tergite (only 1.3 times loS long as fourth) with pair of lateral black vittae. 

 Apical process of anal cell long (entire cell 2.3 times as long as process). 

 Stigma short, only 2.2 times as long as breadth at base. Eyes in profile 

 twice as high as wide. Dorsocentral bristles inserted halfway between 

 transverse suture and supra-alar bristles. Inferior mesopleural bristle 

 but slightly shorter than superior. Second basal cell yellow with a 

 large anterobasal hyaline spot. 5 mm. Southern Brazil: Sao Paulo. 



cf pseudopenicillata, new species (p. 387) 



- Legs without special f rmature. Pleura whitish dusted, with only one black 



spot on the pleurotergite. Third to fifth tergites each with a pair of 

 well-deUmited blackish lateral spots. Second basal cell almost entirely 

 hyaline. 5 mm. Paraguay cf tripunctata Hendel 



