New Species of Exotic Trichoptera. 305 



Fcem, — Antennis gradatim ciassatis ; capite vufo-piloso ; oculis 



baud approximatis ; pedibus omnino saturate piceis. 

 Long. Corp. 6 lin. ; exp. alar. 17 lin. 



Male. — Antennae black, of nearly uniform thickness tlirough- 

 out ; palpi clothed with long, blackish hairs ; eyes large, approxi- 

 mating above, brownish-ochreous ; thorax black, with a tuft of 

 red hairs on each shoulder; abdomen dark piceous ; thighs pi- 

 ceous ; tibias and tarsi brownish-ochreous ; anterior and posterior 

 wings glabrous, semi-pellucid, smoky fuscous ; sub-costal vein 

 very strong and dark in all the wings, the others scarcely darker 

 than the membrane. 



Female. — Antennae gradually thickened before the apex ; eyes 

 small, distant; head with a tuft of red hairs on the vertex; legs 

 entirely piceous ; otherwise similar to the male. 



Habitat, North China. In the British Museum. 



Differs from the only other described species — A. humeralis, 

 Walk. — in its somewhat smaller size, naked and more pellucid 

 wings, and especially by the antennae of the male not being thick- 

 ened. In humeralis they are thickened in both sexes, but the 

 antennae of the female are shorter and stouter than in the male in 

 both species. 



Genus Pseudonema, n. g. 



Female. — Antennae much longer than the wings, joints cylin- 

 drical, the basal joint long and thick ; maxillary palpi hairy, basal 

 joint short, 2nd and 3rd long, of equal length, 4th scarcely so 

 long as the 3rd, and less robust ; terminal joint as long as the 

 3rd and 4th united, flexible ; labial palpi with the terminal joint 

 long and thin; head sub-triangular; eyes prominent; abdomen 

 robust ; leg-spurs 2. 2. 3 ; anterior wings rather thickly clothed 

 with short hairs, long, narrow, slightly dilated at the apex, which 

 is elongated ; discoidal cell broad; 1st apical cell much longer 

 than the rest ; 2nd short, scarcely reaching halfway to the anas- 

 tomosis ; 5th narrow and very acute, barely reaching the anas- 

 tomosis ; posterior wings folded. 



This genus, which has much general resemblance to Leptocerus, 

 may be at once distinguished therefrom by the tricalcarate pos- 

 terior tibiae, and by the robust abdomen. 



P. ohsoleta. 



Fcem. — Antennis fuscis, subtilitergriseo-annulatis; palpis griseo- 

 fuscis; capite thoraceque testaceis; abdomine griseo-brunneo ; 



VOL. r. THIRD SERIES, PART III. AUGUST, 1862. X 



