Bibionidae of New Zealand — HARDY 
517 
is straight or nearly so (Fig. Ab). The ninth 
sternum is about as broad as long, and the 
cleft on the hind margin extends about 0.25 
the length of the segment. The claspers are 
sharp pointed on their inner apices (Fig. 4c). 
length: Body and wings, 4. 3-5. 5 mm. 
TYPE LOCALITY: Christchurch. 
The type is in the Canterbury Museum, 
Christchurch. 
I have previously recorded this species from 
several localities in New Zealand. 
Fig. 4. P. insolita (Hutton), a, Apex of front tibia 
(lateral aspect); b, ninth tergum of male; c, male geni- 
talia (ventral aspect). 
Philia nigrostigma (Walker) 
Fig. ^a-c 
Bibio nigrostigma Walker, 1848, Cat. Dipt. 
Brit. Mus., p. 121. 
B. zealandicus^2L\]s.tt, 1858, Ent. Soc. London, 
Trans, (n.s.) 4: 235. New synonymy. 
Dilophus spectabilis Nowicki, 1875, Krakauer 
K. K. Akad. d. Wissen., Mem. 2: 10. 
Bibio zealandicus Walker has been pre- 
viously treated as a variety of nigrostigma, 
distinguished from the typical form by having 
the abdomen of the female ferruginous below 
instead of black. The coloration of the fe- 
males has been found to be so variable that 
it does not appear practical to recognize this 
variety. This species has been adequately de- 
scribed, except for the genital characters, in 
my paper on the Pacific Bhilia (Hardy, 1951, 
Hawaii. Ent. Soc., Proc. 14: 268-270). It can 
be readily distinguished from the other New 
Zealand species by its large size, the brown 
fumose wings, and the arrangement of the 
spines on the front tibiae (Fig. 5^). 
MALE GENITALIA: The ninth tergum is near- 
ly twice as wide as long and is gently concave 
on its hind margin (Fig. 5^). The posterior 
lateral margins of the ninth sternum are pro- 
duced into a pair of short lobes which extend 
about halfway to the apices of the claspers. 
The claspers are large and conspicuous and 
are enlarged at their apices and shaped like 
a hammer head (Fig. 5c). The ninth sternum 
is slightly broader than long. 
length: Body and wings, 6.5-10.0 mm. 
TYPE LOCALITY: "New Zealand.” 
The type is in the British Museum (Natural 
History) . 
I have previously recorded this species from 
several localities in New Zealand. Specimens 
have since been seen from the following: 
Southeast of Taupo, 3,000 feet, Dec. 7, 1949 
(L. D. Tuthill); Mt. Wellington, Lava Fields, 
Nov. 12, 1948 (S. A. Rumsey); Owairaka, 
Nov. 16, 1940 (D. Spiller) and Avondale, 
Auckland, Dec., 1949 (R. A. Harrison). 
