Ixix] ENTOMOLOGICAL NEWS 99 distribution it seems safe to predict its eventual discovery throughout the colder northeastern states. Tidabius sp. [T-1*J. One specimen was captured, but its condition makes specific identification impossible. It is prob-ably either tiviiis, which Chamberlin reported from Janesville, or opiphilus, known only from the type locality at Beloit. SCUTIGEROMORPHA Sciitigera colcoptrata (Linne) [olini Scutigera forceps (Raf.)]. [N-3*, T-l*]. Ten specimens were collected. This common domiciliary species, which has been introduced from Europe, should be expected through the United States in, or oc-casionally near, human habitations. Some Robber Flies (Diptera: Asilidae) By FRANK M. HULL, University of Mississippi This paper presents the descriptions of some miscellaneous species and genera of Asilids. CHYMEDAX, new genus Type of genus : Chymedax dclicatuhis, new species. Minute, slender Asilids belonging to the Laphriinae. Char-acterized by the presence of only 4 posterior cells. Third an-tennal segment with a small microsegment at apex, more slender than the third segment, and above it, rising from the third seg-ment there is a small, bristle-like spine. Related to Despotisms Bezzi. Length 6.5 mm. Head: The head is comparatively long and quite convex an-teriorly ; face visible in profile only below ; proboscis quite small, short and cylindrical. Palpus reduced to a minute stub. An-tenna slender and longer than the head ; first segment twice as long as second; third segment, microsegment included, not quite twice the combined length of the first segments. At the apex the slender third segment bears a short, distinct microsegment,
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