RECLASSIFICATION OF MICROGASTERINI 139 



Face sharply punctate, the punctures of medium size ; antenna long, rather thick, 

 with the preapical segment almost twice as long as wide ; mesoscutum densely, 

 rather finely punctate ; propodeum with irregular transverse keel, situated far in 

 front and laterally more or less forking to enclose the spiracle ; hind tibia brown, 

 contrasting with the yellow hind femur ; palpi whitish with middle and front coxae 

 almost as pale ; claws larger than in the other species ; hypopygium short, vafer sp. n. 



Philippines: Mdro. Or., Mt. Halcon, 4,500 ft., 11. v. 1954, x ?> the TYPE, 3,000- 

 4,500 ft., 10. -1 1. v. 1954, 14 o*o", (M. 6- D. Townes). Type in Coll. Townes. 



Extremely like the two following species and readily separable only on the shape 

 of the basal tergites. 

 Tergite 1 slightly more constricted apically, its broadened apical part reddish and con- 

 trasting with the darker apical part (Text-fig. 134) ; flagellum imperceptibly 

 thickened towards apex ; abscissa 1 of the discoideus less distinctly shorter than 2 



siderion sp. n. 

 Java: Tjibodas, 5,000-7,000 ft., viii.1913, 1 $, the TYPE, (Koningsberger). Type 

 in the British Museum (Nat. Hist.). 

 Tergite 1 slightly less constricted apically, its broadened basal part not noticeably paler 

 than the rest of the tergite ; flagellum not thus apically thickened (difference 

 between the two species slight on this character) ; abscissa 1 of the discoideus more 

 distinctly shorter than 2 ; hypopygium much more strongly developed than in 

 siderion with the ovipositor slightly longer (Text-fig. 137) . . atylana sp. n. 



Java: Tjibodas, 5,000-7,000 ft., viii.1913, 1 $, the TYPE, (Koningsberger). 

 Type in the British Museum (Nat. Hist.). 



The MEROPE-Grovp 



Claws lobed with a short excision between the lobe and the short apex of the claw 

 (Text-fig. 143) ; in comparison with the sider ion-group, the hind tibia is very bristly, 

 the hind tarsus is shorter and has its ventral flange deeper and altogether more 

 noticeable ; the apical segment of the front tarsus shows a feeble, curved spine near 

 the apex (Text-fig. 143) (weakest in phoebe). Tergite 2 with a large, clearly delimited 

 subtriangular field with base longer than sides. 



In spite of their both possessing a hind tibial fringe, it seems that this group and 

 the s^mon-group are not very closely related. Apart from the differences already 

 pointed out, species of the merope-gvoup have the ocelli in a lower triangle with the 

 transverse, posterior tangent to the anterior ocellus cutting the posterior pair. In 

 the siderion-group, this tangent hardly touches the posterior ocelli. 



Key to Species 

 Females 



1 Eyes very large so that the shortest distance between an eye and a posterior ocellus is 

 hardly as great as the longer diameter of the ocellus ; 1st abscissa of the discoideus 

 distinctly shorter than the 2nd (Text-fig. 149). 



Face densely, irregularly pitted ; flagellum thick but attenuated towards apex 

 and with the preapical segment about twice as long as wide ; temples coarsely, con- 

 tiguously, almost rugosely punctate ; anterior half of the mesoscutum with a satin- 

 like sheen as well as a very strong, sharply discrete punctation ; hind femur only 

 very slightly infuscate apically ; median field of tergite 2 brown, rather sharply tri- 

 angular ; ovipositor strongly downcurved (Text-fig. 139) . . . me rope sp. n. 



