Goblet cells 157 in the male, or 120 in the female; stigmal plate shaped as shown in the figure ([figs. 150 a, b]). Montana, etc. D. andersoni.
[G] Professor C. R. Crosby who has been working upon certain capsids states that he and his assistant have been bitten by Lygus pratensis, the tarnished plant bug, by Chlamydatus associatus and by Orthotylus flavosparsus, though without serious results.
[H] Species marked with an * are known to transmit malaria. Species found only in tropical North America and not known to carry malaria have been omitted from this table, but all found in the United States are included.
[I] This table to the North American genera of the Tabanidæ is adapted from one given by Miss Ricardo.
[J] The classification of the Muscoidea as set forth by Schiner and other earlier writers has long been followed, although it is not satisfactory, being admittedly more or less artificial. Within the last two or three decades several schemes have been advanced, that of Brauer and Bergenstamm and of Girschner, with the modifications of Schnabl and Dziedzicki having obtained most favor in Europe. Townsend, in 1908, proposed a system which differs from Girschner's in some respects, but unfortunately it has not yet been published in sufficient detail to permit us to adopt it. From considerations of expediency we use here the arrangement given in Aldrich's Catalogue of North American Diptera, though we have drawn very freely upon Girschner's most excellent paper for taxonomic characters to separate the various groups.
It may sometimes be found that a species does not agree in all the characters with the synopsis; in this case it must be placed in the group with which it has the most characters in common.
[K] There are several genera of flies of the family Cordyluridæ; (i.e. Acalyptratæ) which might be placed with the Anthomyiidæ (i.e. Calyptratæ), owing to the relatively large size of their squamæ. As there is no single character which will satisfactorily separate all doubtful genera of these two groups we must arbitrarily fix the limits. In general those forms on the border line having a costal spine, or lower squama larger than the upper, or the lower surface of the scutellum more or less pubescent, or the eyes of the male nearly or quite contiguous, or the eyes hairy, or the frontal setæ decussate in the female; or any combination of these characters may at once be placed with the Anthomyiidæ. Those forms which lack these characteristics and have at least six abdominal segments (the first and second segments usually being more or less coalescent) are placed with the Acalyptrates. There are other acalyptrates with squamæ of moderate size which have either no vibrissæ, or have the subcosta either wholly lacking or coalescent in large part with R1 or have spotted wings; they, therefore will not be confused with the calyptrates.
[L] Pachymyia Macq. is closely related to Stomoxys. It differs in having the arista rayed both above and below. P. vexans, Brazil.
[M] The genus Eudasyphora Town. has recently been erected to contain D. lasiophthalma.
[N] Nitellia, usually included in this genus has the apical cell petiolate. Apollenia Bezzi, has recently been separated from Pollenia to contain the species P. nudiuscula. Both genera belong to the Eastern hemisphere.