List OF Material

(1) B. tasmaniensis. 1 male adult, tarsus of each second leg missing. Wings tattered Several larvae, somewhat macerated This material had been collected at the Ida Bay Caves in 1936 by Dr. J. W. Evans, of Sydney, and stored in alcohol.

(2) B. luminosa (NZ). 1 male (Waitomo Caves). 3 females (2 Waitomo Caves, 1 bred by Dr. Simon Cotton and writer). 3 pupae, one partly crushed. Numerous larvae, whole mounts and sections.

(3) Australian Form (N.S.W.). Several larvae (Dr. A. R. Woodhill and Mr. D. McAlpine).

(4) Sections of the end of abdomen of N.Z. male and female adult (see Gatenby, 1959).

All this material except the sections suffered somewhat during the long sea route from New Zealand and Australia.

As will be realized, this material is inadequate. No cave larvae of the N.S.W. species have been studied; though the N.S.W. larvae seen lived in situations somewhat like those where N.Z. larvae were collected. The relative positions of the organs drawn freehand in Pl. 39, fig. 3, depend somewhat on the contraction or

stretching of the body. In the case of Fig. 3, the larva was beginning to turn to the right and was stretched in front. Comparison between the cuticular parts of larvae from N.Z., N.S.W., and Tasmania, proved disappointing as taxonomic evidence. No really good hot hydroxide or lactic acid preparations of larvae were made, but Faure mounts of unstained larvae were adequate. The N.Z. female from which Fig. 12 was drawn is unusually small (10 mm body and head length), instead of 17 mm. It had been well fed, but chose to pupate sooner than expected, in early autumn. The room in which it was kept was heated only occasionally, and it must have experienced cold nights. The outer genitalia of the N.Z. male could not be studied in toto, because the hind segments had been removed for sectioning (see Gatenby, 1959, Plate 27, fig. 11). Except for Figs. 3, 12B and 12C, all the drawings were made with a camera lucida. It was not desirable to pull off individual legs to get the lengths of parts in all cases exactly right, but every care was taken to do this from the mounted specimen. Part of the missing region of the middle leg in Pl. 41, fig. 11, has been dotted in.

This paper, and previous papers (Gatenby, 1959; and Cotton, 1960) on the Genus Bolitophila have been written from the aspect of comparative anatomy. The taxonomist of the Mycetophilidae may find that the writer unwittingly has left out data which would appear important in taxonomy. It is hoped that the drawings are adequate and accurate enough to enable the taxonomist to find the information he may desire. It is unfortunate that the legs of the only N.Z. male were broken in transit. There is, however, a good photograph of a N.Z. male in the Waitomo pamphlet, the original negative being in the archives of the N.Z. National Publicity Studios. On Pl. 41, fig. 11B the coxa and femur of the metathoracic leg of the N.Z. male is drawn at the same magnification as the Tasmanian male for comparison. Unfortunately it has not been possible to compare the prothoracic legs of the two males, in order to confirm Ferguson's statement that the ratios of the five metatarsi and tibiae of the two species are different. The N.Z. male was so much larger than the Tasmanian form that it was not possible to draw it at the same magnification within the space used for Plate 41, fig. 11.

In his description of the new species B. tasmaniensis, Ferguson does not mention the fundamental fact of the general difference in build, of the N.Z. and Tasmanian species. In fact, so far as the writer is able to understand Ferguson's description of his new species, this would apply to the N.Z. male as well, save for the length of the antenna and difference of the relative lengths of the fore metatarsi and tibiae which the writer was unable to test. Ferguson states that there are two basal joints and fifteen flagellar joints on the antenna of A. tasmaniensis— that is, seventeen altogether. In both the Tasmanian and the N.Z. male examined the present writer is quite certain that there are only sixteen altogether.