378 PROCEEDINGS OF THE NATIONAL MUSEUM vol. m 



Tomoplagia phaedra Hendel 



Figures 100,h-l; 102,c,d,- Plate 24, figure 21 



Tomoplagia -phaedra Hendel, 1914, p. 38. 



Tomoplagia tucumana (Blanchard in litt.) Hay ward, 1942, p. 32 (nomen nudum). 



Tomoplagia bosqi (Blanchard in litt.). 



A well-defined large species easily distinguishable by the characters 

 given in the key. 



Male: Length of body 5.1 (6.3) mm.; wing 5.0 (5.2) mm. long and 

 2.2 (2.1) mm. broad, 2.3 (2.5) times as long as broad. 



Head entirely testaceous yellow, 1.04 (1.11) mm. long, 1.71 (1.88) 

 mm. wide and 1.52 (1.63) mm. high. Antennae and mouthparts 

 testaceous yellow, antennae paler. Frons at vertex 0.86 (0.98) and 

 at anterior margin 0.66 (0.75) mm. broad, and in median line 0.80 

 (0.82) mm. long, without white pruinosity. Ocellar plate slightly 

 raised, vertex on both sides of ocellar plate considerably raised. 

 Postpedicel long-oval, 0.27 (0.32) mm. long and 0.22 (0.20) mm. 

 wide, 1.4 (1.6) times as long as wide; apical half of seta shining black, 

 basal half testaceous yellow; seta approximately three times as long 

 as postpedicel. Oral margin of mesofacial plate raised and prominent. 

 MaxUlary palpi wide oval, almost straight, with widely rounded tip. 

 Inferior part of cerebral plate very slightly raised, invisible in profile. 

 Eyes in profile 1.18 (1.27) mm. high and 0.59 (0.67) mm. wide, 2.0 

 (1.9) times as high as wide. Genae below eyes (0.20 (0.26) mm.) 

 and inferior region of postcranium in profile (0.43 (0.29) mm.) are 

 relatively wide. 



Cephalic bristles yellow to brownish yellow; anterior of the three 

 incurved orbital bristles (ori) as long as posterior of the recurved 

 upper orbital bristles (ors); posterior pairs or ori, anterior pair of ors, 

 ocellar pair and outer postvertical bristles are longer than the afore- 

 mentioned and subequal in length; inner postvertical pair usually 

 but slightly longer than these. Genal bristle indistinct. 



Thorax with scutellum 2.5 (2.7) mm. long and 1.8 (2.0) mm. wide, 

 testaceous yellow; mesonotum evenly and densely covered with yellow 

 dusting and with very short appressed yellow hairs, except for the very 

 narrow, shining hind margin; no dusted vittae of different color present. 

 Only the usual pair of wide-oval, almost circular, black spots present 

 on hind region of mesonotum; sides of mesonotum with three black 

 spots: a short vittalike one beneath posterior notopleural bristle, 

 a large half-circle spot above wing base, and a pointlike dot behind 

 (and beneath) wing base. Pleura shining except for the mesopleuron 

 and sternopleuron, the major part of which is covered with fine whitish 

 pruinosity. Pleura marked on lower hind part of pteropleuron (ane~ 

 pimeron), with only one brownish black to brownish yellow spot which 

 is quite variable in size and sometimes completely absent. Scutellum 

 subshining testaceous yellow with some scattered brownish yellow 



