that I included it in that Genus in my Guide. On a more care- 

 ful investigation, however, I find that the ocelli are distinct, 

 and not remote, as in Mycetophila, neither are the posterior 

 tibiae spined externally. Leptomorphus seems to make a near 

 approach to Gnoriste, of which having no specimens I cannot 

 speak with confidence ; but it is at once distinguished from that 

 Genus by its short Trophi : and the lengthened terminal joint 

 of the palpi, and the situation and relative proportions of the 

 ocelli, seem to connect it with Platyura. I suspect, therefore, 

 that its natural situation will be between those two Genera. 



Most, if not all of the insects forming this part of the family 

 of Tipulidse live in Fungi in the larva state : and the following 

 table of Genera may be of service to the student in separating 

 them. 



Antennae nearly as long, or longer than the body. 



2nd subcostal nervure terminated abruptly Bolitophila. 



continued to the apex Macrocera. 



Antennnae much shorter than the body. 

 Terminal joint of Palpi elongated. 



3rd lateral nervure forming a cell in the centre. . Synapha. 

 Antennae with cup-shaped joints. 



Nervures simple Mycetobia. 



With an oblique nervure at the apex Platyura. 



Antennae with oblong joints Leptomorphus. 



Terminal joint of Palpi short. 



Trophi elongated Gnoriste. 



Trophi short. 



Wings with a subquadrate areolet Sciophila. 



Wings without a subquadrate areolet. 



Ocelli approximating Leia. 



Two remote ocelli or none Mycetophila. 



Of the economy of Leptomorphus we are ignorant; it is the 

 largest British species of the above group that I have seen, 

 and was taken in July on the windows at Arno's Grove, and 

 off a hedge by a wood at Southgate, by my friend Francis 

 Walker, Esq., to whom I have the pleasure of dedicating this 

 fine addition to our Fauna. 



Specimens o^ Jungermajinia einphylla were communicated 

 by E. T. Bennett, Esq. 



