GLYPMirTEllYX. 173 



cording to Tisclicr, the larva fcetls on heath, (h'awing the k'avcs 

 together by its silken threads, and is full-grown at the end of 

 June; the perfect insect appears in July or August. Lienig says 

 that the larva lives on the underside of the leaves of the lime in 

 May and September. From the habitats of the insect with us, 

 Tischer's account is more probably correct.) 



Genus III. GLYPHIPTERYX. 



^M^A'^'^ 



Gli/p/i/pfen/x p., lliib. V. 421 (ISIG). yKchmhi p., Treit. ; Dup. ; 

 Zell. (Ecophora p., Zett. Ilerihela et CaUlsto p., Step. 



Caput licvig-atum. Frons lata. Ocelli vtagni, pone oeulos. Antenna; 

 tenues, cor])ore breviores, articulis distinetis. llaustelkun mediocre, 

 nudum. Palpi labiales arcuati, crassiusculi, intra setoso-pilosuli, 

 articulo tcrtio acuminato, pra'cedentem longitudinc requante. Ala? 

 oblongfe vel elongata;, mediocriter ciliata;, posteriores subovatic vel 

 lanceolata; ; anteriores : vena apicalis simplex ante apicem excurrit, 

 infra earn rami 6 discreti ; cellula secundaria bene indicala ; sub- 

 mediana rarius incrassata; subdorsalis breviter furcata ; posteriores: 

 cellula costalis elongata ; vena apicalis simplex, infra cam vena; dua; 

 separata?. 



Head smooth. Forehead broad. Ocelli large, behind the eyes. 

 Antennre slender, shorter than the body, with distinct joints. Tongue 

 of moderate length, naked. Labial palpi arched, rather thick, beneath 

 with rather bristly hairs ; terminal joint pointed, as long as the second. 

 Wings oblong or elongate, with moderately long cilia ; the jiosterior 

 rather ovate, or lanceolate. In the anterior wings the simple apical 

 vein runs into the costa before the apex ; below it arc six separate 

 veins ; the secondary cell is well indicated ; the submedian vein is 

 rarely thickened towards the apex (slightly so in fascoviridella and 

 Tlirasonella, but not at all in the other species) ; the subdorsal vein 

 has a short fork (in fuscovifide.lla and Thramnella, being simple in the 

 remaining species). In the posterior wings tlie costal cell is elongate ; 

 the apical vein is simple ; below it are two separate veins. 



It is difficult to subdivide this genus, the change from one 

 species to another being so gradual ; thus fascovlndcUa agrees 

 with Thrasonella, in having the antenna) pubescent ; yet T/inuso- 

 nella diiTers from fascoclrldcUa in having the anterior wings 

 slightly retase below the rounded apex, in which respect it 

 agrees witli Haioort/iaiia, cquitella, etc. ; again ILaioortkana has 

 rather ovate posterior wings, with only moderate cilia ; whereas 

 equilella and the following species have lanceolate i)osterior wings 

 with longer ciha. 



