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Acerataspis formosana Cushman, 1937, holotype, ♀

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posted on 2019-03-21, 10:33 authored by Andreas TaegerAndreas Taeger
Cushman R.A. (1937): H. Sauter's Formosa Collection: Ichneumonidae. Arbeiten über morphologische und taxonomische Entomologie aus Berlin-Dahlem, Berlin 4: 291

"Acerataspis formosana, new species
Differs from the generic description in tliat the propodeum is not completely areolated, but Uchida's figure contradict's the description in this respect. The basal area and areola are confluent, as are the petiolar and apical lateral areas. Also the areolet is rather broadly sessile, the claws in the female have a few large teeth rather than dense pectination, and the carinae of the abdomen extend nearly to the middle of the fourth tergite. Despite these differences, which are of specific rather than generic significance, there appears no doubt that the present species is properly referred to the genus.
Female. Length 8 mm.
Differs from the original description of the genotype, clavata Uchida), in the characters mentioned above and in having the flagellum much paler below and the apical corners of tergite 1, tergltes 2 and 3 except laterally and medially toward base, and more than apical half of tergite 5 yellow. Also the scutellum and a line below the tegula are yellow; these markings are not mentioned in Uchida's description, but the pale scutellum is shown in his figure.
Male. Like the female except that the tarsal claws are thickly pectinate, the propodeum is more coarsely rugose, and the black of the abdomen is somewhat more extensive.
Type locality. Suisharyo, Formosa.
AIlotype. No. 51997, U. S. National Museum.
One female (type) and one male (allotype)."

Photos were taken at the SDEI with a Leica DFC 495 digital camera and M205 C microscope. Composite images with an extended depth of field were created from stacks of images using the software CombineZP, and finally arranged and partly enhanced with Ulead PhotoImpact X3.

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