120 NEW YORK STATE MUSEUM 



The hinder ones are convolute. The mesonotum shows a median 

 transverse depression. The total length of the pupa is 4.5 mm. 



Genus 14. Clunio Haliday 

 Natural History Review II, Proc. 62. 1855. (PI.36, figs. 11, 12, 13) 



Smaill ferruginous species, characterized by their one-jointed 

 palpi and rudimentary proboscis. 



The head is rounded and placed low; proboscis rudimentary, 

 the palpi one-jointed. Antennae 11-jointed, the first two joints 

 spherical, the third much elongated, the following rounded, 

 scarcely hairy, the last joint quite long. Front broad at the 

 vertex with a small protuberance; ocelli wanting or at least rudi- 

 mentary; eyes round, somewhat hairy; mesonotum oval, over- 

 hanging the head, no transverse suture; sciitellum semicircular; 

 the metanotum moderately large. Abdomen shorter than the 

 thorax, the segments crowded together, the last one broadened; 

 the genitalia longer than the rest of the abdomen. Legs mod- 

 erately long, anterior pair widely separated from the others; 

 tibiae with a spur; the metatarsus elongated, the fourth joint 

 smallest; claws and pulvilli well developed. Halteres leaf-like. 

 Wings comparatively large, anal angle prominent. The venation 

 of the type shown in the figure. 



According to the Abbe Kieffer (1898 p.107, footnote), the figure 

 of Haliday and here rej)roduced is not entirely complete. He 

 says, " Le dessin de Halida}- ne represente par la premiere ni la 

 derniere nervure; en outre le rameau inferieur de 1^ 4e fait un 

 angle aigue avec le rameau superieur. . . ." 



Of the female and of the life history the following is given by 

 G.H. Carpenter (1894) p.l29. 



We discovered quite a colony of C 1 u n i o ni a r i n u s Hali- 

 dny on a mnss of green sea-weed (Cladophora) covering a rock 

 which had been left exposed by the tide. On some of the weed 

 with the insects upon it being placed in a tube and examined, it 

 became clear that we liad now secured both sexes^ for two of 

 the males were carrying about with them (attached in cop.) 

 wingless females. These when captured had their abdomens dis- 

 tended with eggs, and appeared of a dull greenish color. The 

 female Clunio is mucli degraded (fig.l3). Not only are the 

 wings reduced to very small vestiges, but the legs are weaker, 



