194 CALIFORNIA ACADEMY OF SCIENCES. [Proc. 3D Ser. 



Immature Stages. Larvae ( PI. XX, figs. 9 and 10) red-brown above, with 

 four small but distinct black spots on dorsum of each body segment; lateral 

 processes rather pronounced, double, the anterior one of each pair angulated, 

 both processes dark brown; tracheal gill-tufts composed each of four tubules, 

 two projecting anteriorly and two posteriorly; antennae rather short, length 

 6-8 mm. 



Pupae black, with short, broad, slightly curving, dorsal, prothoracic respira- 

 tory leaves; length 7 to 8 mm. 



5. Bibiocephala doanei Kellogg. 



Plate XVIII, Fig. 3; Plate XIX, Fig. 4; Plate XX, Figs. 7 and 8; 

 Plate XXI, Fig. 3; Plate XXII, Figs. 9, 10 and ii. 



Liponeura doanei Kellogg, Psyche, Vol. IX, 1900, p. 39. 



This species, the first of the new Calif or nian species 

 found, was first described as a Liponeura, but in the light 

 of the other forms the species should be removed to the 

 genus Bibiocefhala. For the purpose of making this paper 

 complete, the essential parts of the description as already 

 published are repeated here, and the description of the 

 male and of the immature stages are added. At the time 

 of describing the species, only the adult females were at 

 hand in condition for description. 



Female. — Length 6 mm. ; length of wing 7.5 mm. ; very pale brown, almost 

 clayey; antennae 14-segmented and rising from a prominence which might be 

 construed as a basal antennal segment; eyes broadly separated, and with no 

 indication of bisection, the facets being all of the same size; eyes in the male 

 (PI. XVIII, fig. 3) broadly separated, and bisected by a distinct line; the 

 mouth-parts (PI. XXII, figs. 9, 10 and 11) long (distinctly longer than in 

 Blepharocera, for example); wings with venation (PI. XIX, fig. 4) showing 

 the following characters, vein M^ independent, i. e., without connection with 

 M or any other principal vein (an incomplete vein running into the posterior 

 margin between veins four and five); vein R^ present as a very short spur 

 running so quickly into R^ as to form a small triangle with R.^ as the shortest 

 leg (a short anterior branch of the second vein running into the first vein close 

 to the origin of the second vein); a medio-cubital cross- vein (a cross-vein 

 between veins four and five) ; veins R.2, and 3 and R^ and 5 separating at the 

 origin of the radio-medial cross- vein (the submarginal cell sessile); the 

 radial sector springing from R by two roots (the cross-vein between veins 

 one and two Y-shaped, i. e., the anterior half of it divided, enclosing a small 

 triangular cell); subcosta wanting or with only a basal rudiment present (aux- 

 iliary vein wanting or with only a basal rudiment present); wings clear, with 

 strong iridescent reflections); legs long, the three pairs of about equal length. 



