420 TIPULIDJi. 



absent ; the 1st longitudinal vein ending at a little beyond three- 

 fourths the length of the wing ; the 2nd longitudinal originating 

 about the middle of the wing (the prsefurca barely half its entire 

 length) taking a sudden bend upwards at the origin of the 3rd 

 i^ein, which latter is in a straight line with the praefiirea, and ending 

 at the \ying-tip ; anterior cross-vein distinct, moderately long, 

 placed at the corner of the discal cell ; 1st posterior cell with 

 approximately parallel sides ; discal cell almost oblong, shorter 

 than the 2nd and 3rd posterior cells, of which the former is much 

 the narrower, the latter widening at the wing-margin ; posterior 

 cross-vein in a line with inner side of discal cell ; 5th, 6th, and 

 7th longitudinal veins almost straight ; no marginal cross-vein. 

 Halteres yellowish. 



Lenrjth 4 millim. 



Described from a single male from Kurseong, 16. iv. 11 {AnnaR- 

 dale). 



Type in the Indian Museum. 



The form ot" venation shown in this species, i. e., the absence of 

 the subcostal cross-vein and the ending of the auxiliary vein in 

 the 1st longitudinal, is distinctly noted by Osten Sacken in his 

 monograph of the North American Tipulim: buevipalpi. The 

 absence of the marginal cross-vein is a generic character. The 

 abnormal slenderness of the last few joints of the antennae is 

 very striking. 



Genus TOXORHINA, Liu. 



Toxorhina, Loew, Linu. Eutom. v, p. 400 (1851). 

 Limnobiorhijnchus, Westwood, Anu. See. Ent. Frauce, (1) iv, p. 683 

 (1835). 



Genotype, Toxorhina frrajiUs, Loew ; by designation of Osten 

 Sacken, after a controversy. Loew originally described three 

 fossil species, presumably more or less inadequately, and subse- 

 quently the existing species, T. frcujilis. 



Head : eyes slightly eraarginate ; frons narrow or very narrow. 

 Proboscis slender, linear, practically bare, about one and a hall" 

 times as long as the head and thorax together ; the palpi are 

 situated at its tip, very minute, their joints almost coaleseenL 

 Antennae 12-jointed, hardly longer than the head ; the 1st scapal 

 joint very short, shorter in male than in female, the 2nd joint 

 longer and much stouter, obeonical ; the 1st joint of the flagelluni 

 incrassate, possibly formed by tlie coalescence of two or three 

 others, more or less rounded in male, more elongate, subconical in 

 female, the remaining joints filiform ; the two apical joints in the 

 male elongate, slender, and longer than the preceding ones, this 

 difference not being so accentuated in the female; the inter- 

 mediate joints cylindrical, the basal ones, after the 1st flagellar 



