716. 

 MOLANNA ANGUSTATA. 



Order Trichoptera. Fam. Leptoceridae. 



Type of the Genus, Molanna angustata Curt. 



MoLANNA Curt., Step. 



Antennce porrected in repose but divaricating, a little longer than 

 the wings in the male, shorter in the female, rather stout, a little 

 tapering, pubescent, composed of numerous joints, basal joint 

 the stoutest, 2nd short, 3rd cup-shaped, longer than the 4th, the 

 6 following increasing in length, the remainder elongated (1 the 

 base and apex). 



MaxillcE small, with a minute terminal ovate lobe, a little cili- 

 ated. Palpi much longer than the head, porrected, alike in both 

 sexes, very hairy, 5 -jointed, basal joint short and the stoutest, 

 2nd the smallest, semiconical, 3 following long, nearly equal in 

 length, a little tapering (4). 



Mentum terminated by 2 horny oval scales placed obliquely. 

 Labium rather large, subglobose and inflated. Palpi consider- 

 ably shorter than the maxillary, very hairy, triarticulate, basal 

 joint oval, 2nd nearly twice as long and linear, 3rd a little longer, 

 the apex ovate (5). 

 Males smaller than the females. Head transverse, hairy : eyes pro- 

 minent, globose, coarsely granulated and hairy : ocelli none ? Tho- 

 rax small and oval. Abdomen short linear and clavate, with 2 lobes 

 at the apex above and 2 horny curved processes beneath in the males ; 

 thick and obtuse in the female. Wings deflexed in repose, depressed 

 on the back and compressed behind, long, narrow and rounded at the 

 apex, superior with a short furcate cell at the apex, a long one beloio 

 and an oblique nervure above it. Legs with short bristles internally, 

 anterior the shortest : thighs, anterior the shortest ; middle pair a 

 little the longest : tibiae, anterior the shortest, with a pair of spurs 

 at the apex (8), the others with the spurs longer, with a pair also be- 

 low the middle (*), especially in the hinder tibia, which are the longest 

 and slenderest and a little flexuose (f) : tarsi long andb-jointed, basal 

 joint long, the remainder gradually decreasing, but the 4th is not 

 shorter than the 5th : claws and pulvilli small. 



Angustata Curt, in Phil. Mag. — Guide, Gen. 754^. 



Male ochreous : head, thorax and abdomen dull castaneous, 

 head and shoulders clothed with a few coarse ochreous hairs : 

 eyes black : superior wings silky, nervures brown ; inferior pu- 

 bescent, pale fuscous with darker nervures ; cilia black next 

 the abdomen. Female with the superior wings fuscous, being 

 sparingly clothed with minute silky aureous hairs. 



In the Cabinets of Mr. Dale, the Author, &€. 



An ample series of fine specimens of Chimarra, which I found 

 in vast abundance in Ireland, enabled me to study its affinities ; 



