142 Memoirs of the Indian Museum. [Voi.. Ill, 



of the first. I tliink, however, that Rondani (Bull. Soc. Kntom. Ital., iii, p. i8o) 

 is right in leaving the species in the genus Acidia , from which it differs only in 

 the wing-pattern. 



45. Acidia himalayensis, n. sp. 9 . 



(PL ix, fig. 45). 



A dark ferruginous species, with pale yellow notopleural stripe and scutellum, 

 only a pair of superior or., and hyaline wings with three black bands. Length of the 

 body 5 mm., of the wing 5^^ mm. 



Head entirely yellow, without occipital spot ; frons rather narrow, shining on 

 the sides, without white reflections ; face with whitish pollen ; antennae yellow, the 

 third joint twice as long as the second ; arista yellow, with very short pubescence ; 

 cheeks very narrow, with pale hairs below and a black genal bristle ; all the bristles 

 black, those of the occipital row thin and short ; the single superior orbital is inserted 

 upon a small tubercle ; oc. very small, less distinct; pvt. dark yellowish at end; palpi 

 and proboscis yellow. 



Thorax shining ferruginous, with very short pale pubescence and grey pollen ; 

 all the bristles black ; two equally strong mpl., with some dark hairs near ; the pale 

 yellow notopleural stripe is rather distinct. Scutellum pale yellow, flattened, with 

 the apical pair of bristles strong and crossed at the end. Metanotum shining ferru- 

 ginous, unspotted. Haltères and squamulae dark yellow. Abdomen entirely shining 

 ferruginous, with dark pubescence and black bristles ; ovipositor shining black, very 

 short, broader than long, shorter than the last two segments together. I^egs entirely 

 yellow, with black bristles and black hairs on the hind tibiae. 



Wings not so long or so narrow as in the following two species ; costal bristle 

 small ; veins black, yellow at the base ; third vein bristly to the small cross- vein, 

 lightly bent in the middle of the last portion and behind parallel with the fourth, 

 which is straight after the hind cross- vein ; first vein short, ending much before the 

 .small cross- vein ; stigma short, entirely black ; distance of the cross- vein a little greater 

 than the length of the hind cross- vein, but the small cross-vein always placed after 

 the middle of the discal cell. The first brownish-black band is V-shaped, one branch 

 beginning at the stigma, the other going over the small cross- vein ; this last is smaller, 

 and is united with the other at the third vein, forming a single broad band which 

 reaches the hind margin in a point before the apex of the third posterior cell. The 

 second band is narrow and straight, beginning at the fore margin before the end of the 

 second vein and running over the hind cross- vein to the hind margin, which it reaches 

 at the end of the fourth vein. This band is united at the fore border with the third 

 band, which forms a broad apical patch, passing a little beyond the end of the fourth 

 vein. 



Four specimens from Kurseong, 5000 ft., B. Himalayan, 10 — 26-ix-09 [Lynch). 



I am doubtful if the present species can represent the other sex of Vidalia tricera- 

 tops from DarjiHng ; the wing-pattern is very different, but the North American 

 Straussia longipennis , Wied., has also striking differences in the pattern of the wing in 



