OF EXTEA-EUROPBAN TBICHOPTEBA. 131 



Macronema digramma, nov. sp. M. nigrum, fronte ochracea. An- 

 tennae nigraj. Pedes flavij tibiis anticis fere muticis, extus fusco 

 signatis. Abdomen nigrum; appendicibus inferioribus gracilibus, 

 nigris ; pene pyriformi, flavo. Alae anticaj angusta;, ad apicem obtusa; , 

 margine costali interioreque subparallelis, nigro-infumata;, pubes- 

 centcs ; fasciis duabus transversalibus, marginem intcriorem baud attin- 

 gcntibus, albis: postica; pallidiores, cupreo- et orichalceo-micantes ( c? ). 

 Long, antenn. 15 lin. ( = 32 mill.); long. corp. 3| lin. (=8 mill.); exp. 



alar. 12 lin. ( = 25 mill.). 

 Hab. Minas Geraes, Brasilia (in Mus. auet.). 



Black, almost hairless. Head : front swollen, ochraceous ; occiput with 

 two very large rounded swellings, whence spring short blackish hairs • 

 antennae very long and slender, black ; palpi ochraceous ; eyes brown. 

 Thorax black. Legs yellow or testaceous, anterior tibiae with indi- 

 stinct fuscous markings externally ; the spurs on these tibiae vf ry mi- 

 nute, almost obsolete ; spurs on the other tibiae long, yellow. Ab- 

 domen black, margins of the segments greyish ; last segment above 

 fringed with long black hairs ; app, sup. obsolete ; app. inf, very long 

 and slender, two-jointed, the apical joint curved strongly inwards, 

 fringed with black hairs ; penis yellow, pyriform, the apex very ob- 

 tuse ; penis-cover broad, semitransparent, obtuse. 

 Anterior wings long and narrow, the costal and inner margins nearly 

 parallel, the apex subelliptical, smoky fuscous, with rather dense, but 

 very short, darker pubescence ; two narrow, white, transverse parallel 

 fasciaj, neither of which reaches the inner margin, but both starting 

 from the costa, one placed rather before the middle of the wing, the 

 other at about two-thirds of the length from the base, this latter being 

 broadest on the costal margin; veins scarcely darker. Posterior 

 wings somewhat paler, semitransparent, with beautiful coppery and 

 brassy reflections ; the costal margin deeply excised before the apex, 

 and in the excision is an appearance of a whitish mark ; fringes very 

 short and blackish; veins darker, (PI. Ill, fig, 16,) 

 I have one 6 from Minas Greraes, collected by Mr. Eogers. 

 The s])ccies is remarkable for its narrow wings, which are scarcely- 

 dilated before tlie subelliptical apex. The anterior tibia) are 

 almost spineless ; but this obtains in other species of the genus as 

 it is now constituted. 



Htdeopstohe, JPictet. 

 Hydropsyche colonica, nov. sp. H. fusco-nigra. Caput cano- 

 hirsutum : antennae fuscae, vix pallido annulatae. Pedes flavescentes. 

 Abdomen fusco-nigrum, linea utrinque albida; c? scgmento ter- 

 minali supra in lobum elevatum medianum incisum producto ; ap- 

 pendices testaceae ; inferiorum articulo ultimo brcvi, subobtuso, ro- 



