Dr. Papp Jenő szerk.: Folia Entomologica Hungarica 24/24-42. (Budapest, 1971)

fauna is rather young,since, in spite of the high mountain ranges and other harriers no forms of Mongolian origin can he disclosed and suchlikes had not developed during the glaciation. The fauna, therefore, may have Its origin in the times following the formation of harriers. Presumably, the invasion from Siberia was the earliest while the Chinese species, but more so the taxa which invaded from Central Asia may have settled in Mongolia later.

1 The comparatively small Mongolian distribution of the species that invaded from East-Siberian direction renders it likely that their invasion is also a more recent one. Unknown or little known larvae (Table 2) 1. Aspilapsis pallidus (FIEBER, 1861), 4th and. 5th instar larvae. Body elongate, broadening somewhat towards apex; abdomen broadest approximately at the middle. Body-surface with fine hairs, apparently almost bear. In the last two segments the abdomen becomes sharply pointed. Head taking after that of adult. Head in front of compound eyes 2.5 times longer than behind eyes. Head between the compound eyes round, looking somewhat swollen. Sides of head parallel behind compound eyes, almost as long as length of eyes. Ratio of antennal-joints 100 : 193 J 159 i 93» Length of first antennáijoint nearly same as headwidth. Smallest distance between compound eyes almost half of head-width. Ratio of first antennal-joint to head-width and to smallest distance between compound eyes 100 : 102 : 59« Pronotum somewhat shorter than head, its front margin only slightly wider than back of head,while its back margin scarcely wider than head with compound eyes, Pronotum longer than its greatest width. 34 conspicuous short spines on front margin of fore-, and middle-femora. Distance between spines nearly equal with distal end of femur. Scutellum slightly oval with crescent