JOO 



u;vou]>s, and do not 1'onn a regular i"rini;v, wliile those wliicdi arc not 

 simple are to be desei-ilied as hranclied rather than plumose. 



Caelopa pilipcfi Haliday ( iigs. 1 A, 2 A, 2 c). 



Puparia varying from 4j to 7 nnn. long, (^iH jjitfliv-hlacklsli. .siili- 

 cylindricnl, rather tlutteuf^d ventrally, witli no ridge along tiie >ides. 

 Spgmentatioii very feebly marked. Surface at the sides much wrinkled. 

 First and second segments dorsally rngulo.se, third and fonrtli (c-pecially 

 tlic latter) frequently with dorsal longitudinal wrinkles. Ventral surface 

 n}ipearing under a low power to be destitute of spines, bnt under a compound 

 microscope the fmnt ])art of the ventral surface of each segment is seen to bear 

 nunu'roas, sinuous, transverse series of very minute spines. Anterior sjiii'ac/es 



Pig-. 2. — Spiracles of last larval stag-e, as persisting in the puparium. A, left 

 anterior spiracle in Coelopa ■pilipes, from above, X t56. b, ditto, 

 Fitcomijia gravis, X G6. c, right posterior stigmatic plate in Coelopa 

 pilipes ; D, left ditto in Fucomyia gravis ; e, left ditto in Orygma liu-tuo- 

 su7n (the fringe of plumose hairs not shown); e.g., external scar : all three 

 figures X 66, and orientated so that the top of the figure represents the 

 dorsal extremity. 



(Hg. 2 a) with 14-16 papillae in a very close series, almost or quite con- 

 tiguous. Poderiur spiracles (fig. 2 l?) very little elevated. The three C-shaped 

 ridgej are placed as iu fig. 2 c, the dorsal one with its concave side facing 

 downwards, the other two facing upwards, one behind the other. These 

 ridges are yellowish- or reddish-testaceous, contrasting strongly with the 

 surrounding surface, which is pitchy black. The areas enchised by these C's 

 are shining black and concave, that between the two dorsal ones being 

 divided into two concave surfaces by a transverse elevation. The stigmatic 

 jilaies are orientated with the external scar on the inner side, and their long 

 axes nearly vertical, a little oblique, the dorsal extremities of the two plates 



