48 MYCETOPHILID-. 



Rare. June, Tullymore Park. The larva inhabits decayed 

 wood. In the collection of Mr. Haliday. (I.) 



Genus IX. LEPTOMORPHUS. 



LEPTOMORPHUS, Curt. B. E. 365 (1831). 



Mas. Corpus gracile. Caput parvum. Palpi capitis longitudine, 4- 

 articulati. Oculi ovati. Ocelli duo, distincti. Antennae filiformes, 

 16-articulatae, corporis dimidio breviores. Thorax brevissimus. Alee 

 angustae ; vena cnbitalis non furcata ; subanalis furcata. Halteres 

 breviusculi. Abdomen subcompressum, apicem versus subincrassa- 

 tum, thorace quadruple longior. Pedes longi, graciles ; tibiae spinis 

 minimis calcaribusque longis. 



Male. Body slender." Head small. Palpi four-jointed, as long as 

 the head ; fourth joint long and slender. Eyes oval. Ocelli two, dis- 

 tinct. Antennae filiform, sixteen-jointed, less than half the length of 

 the body. Thorax very short. Wings narrow ; costal vein ending at 

 very little in front of the tip of the wing ; subcostal ending at a little 

 before half the length, connected near its tip with the radial by a very 

 short transverse veinlet, which is very near another between the radial 

 and the cubital ; radial ending at beyond five-sixths of the length ; 

 cubital united with the tip of the costal, not forked ; fork of the sub- 

 apical vein much beyond the fork of the subanal, which is nearly opposite 

 the transverse veinlets ; anal vein extending a little beyond the fork of 

 the subanal. Halteres rather short. Abdomen slightly compressed, 

 rather thickened towards the tip, full four times the length of the 

 thorax. Legs long, slender ; tibia with very minute spines and long 

 spurs. 



1. Walkeri, Curt. B. E. 365 (1831). Testaceus, antennis, tho- 

 racis vittis tribus, abdotninis fasciis tarsisque fuscis, alis sublimpidis 

 macula discali fusca apicibus cinereis. Long. 5 ; alar. 7 lin. 



Testaceous. Antennae brown, testaceous towards the base. Thorax 

 with three brown stripes, which are united hind ward. Wings nearly 

 limpid, with grey tips and with a brown spot at the tip of the pra> 

 brachial areolct. Abdomen brown towards the tip ; hind borders of 

 the segments brownish. Tarsi brown. 

 Not common. (E.) 



Genus X. DIADOCIDIA. 



DIADOCIDIA, Euthe, Isis xi. 1210 (1831) ; Winn. Mycetobia p., Meig. 



Macroneura t Mcq. Sciara p., Zett. 

 Corpus lineare, breviusculum, fere nudum. Caput rotundum, supra 



