1 10 MYCETOPHILIDiE. 



side-plates). Just above the style there are four strong spiny 

 black bristles on each side-plate. Legs bright yellowish ; tarsi 

 blackish towards the tips. Wings pale yellowish grey, lighter 

 around the posterior margin ; venation in accordance with Johann- 

 sen's figure (Gen. Ins., I'asc. 93, pi. 6, fig. 12). Halteres blackish. 



Length 3 mi Him. 



Described from one male, from Ivurseong, 25. vi. 10 {Dr. N. 

 Annandale). 



Type in the Indian Museum. 



Genus PHRONIA, Winn. (PI. II, fig. 9.) 



Phronia, Winnertz, Verh. zool.-bot. Ges. Wien, xiii, p. 857 (1863). 



Genotype, P. rustica, Winn. 



Head round, flattened in front, placed low upon the thorax ; 

 front broad, the anterior margin produced into a triangle, the apex 

 of which reaches to the base of the antennae ; eyes round ; ocelli 

 three in number, the laterals large, contiguous to the eye-margins, 

 the middle one small, placed in a groove near the base of the 

 frontal triangle. Palpi incurved, four-jointed, the 1st joint small, 

 the 4th about as long as the 2nd and 3rd taken together. 

 Antennae in the male frequently, in the female usually, nearly 

 cylindrical, slender, arcuate, 16- jointed, the two basal joints 

 differentiated, the 2nd with seta3 at the apex, flagellar joints 

 cylindrical, slightly compressed, pubescent. Thorax oval, highly 

 arched, mesonotum hairy, the hairs on the sides longer, no setae ; 

 scutellum neai'ly semicircular, margin setose, metanotum high, 

 somewhat arched. Abdomen of the male slender, six-segmented, 

 compressed, constricted at the base, with rather large apical segment 

 and forceps ; female with seven-segmented abdomen, cylindrical, 

 constricted at the base, with ovipositor ending in two lamellae. 

 Legs slender, fore tibiae shorter than the corresponding tarsi ; all 

 tibiae with spurs and lateral setae. Wings oval, with a more or 

 less rounded base, somewhat longer than the abdomen, micro- 

 scopically setulose. Costa ending at varying points before the 

 wing-tip, according to the species ; auxiliary vein very short or 

 rudimentary, ending free; 1st longitudinal moderately long; 3rd 

 originating at a right angle before middle of wing, running 

 straight to just above the wing-tip ; anterior cross-vein short, 4th 

 longitudinal vein forking soon after contact with the cross-vein, 

 the branches gradually diverging ; 5th vein forking beyond fork 

 of 4th, the branches widely diverging ; 6th and 7th veins incom- 

 plete, sometimes almost rudimentary. 



Range. Sikkim, Assam ; previously recorded only from Europe, 

 and one species from Greenland. 



Life-history. The early stages are passed in decaying wood. 



To the student who would make this genus a special study. 



