450 BRITISH LEPIDOPTEEA. 



pityocampa. Genus omnino distinctum, quod prgesertim abdomine feminarum 

 lanato, maseulorum barbato dignoscitur. Auctores Systematis Viennensis et 

 Borkhausen species hoc loco relatas in propriam familiam congesserunt at perperam 

 Bonibyces crataegi, ulula, neustria, etc., illis immiscuerant. 



Lasiocampa, Schrank. — Palpi duo compressi, porrecti, hirsutissimi, biartieulati, 

 articulo secundo elongato, obtuso. Lingua nulla. Antennae filiformes, (maris 

 peetinatae) — dumeti,* taraxaci, rubi* querent* medicaginis* trifolii,* lobulina,* 

 pini* [Genus proprium (Dendrolimus olim mihi), ob linguam spiralem abbreviatam 

 constituere possit, attamen ad interim huic generi subjeci], neustria,* castrensis,* 

 fra neon ica , era taeg i.* 



Odonestis. — Palpi duo porrecti, hirti, triarticulati, medio dilatati, apice 

 attenuati, reversi. Lingua brevissima. Antennas filiformes, (maris pectinatse) — 

 pruni* ? potatoria* (potius ad sequens re-crendae). 



Gastropacha, Ochs. — Palpi duo porrecti, triarticulati, hirti, subcylindrici, apice 

 obtusi. Lingua nulla. Antennas filiformes, (maris) peetinatae — quercifolia* f 

 (alnifoliam, Ochsh., vix speciem distinctam puto), populifolia, betulifolia,* ilici- 

 folia.* f 



It would appear that, Hiibner's Lachneis having already taken 

 catax, lanestris and everia, the name Eriogaster must be applied to 

 populi, processioned or pityocampa, of which the author had seen populi 

 and processioned. His generic diagnosis ' ' female with woolly abdomen ' ' 

 does not, however, agree with populi, which, therefore, cannot form 

 the type of the genus. At the same time, of the five species left by 

 Latreille as possible types of Lasiocampa, Germar retains only three 

 — quercus, neustria and castrensis — thus limiting the possible use of the 

 name to these. The last two were removed by Hubner who placed 

 them in Malacosoma leaving quercus the residuary type of Lasiocampa. 



It is, however, in Hiibner's Verzeickniss, pp. 184-193, that the 

 first real grouping of the species into classified named sections occurs. 

 Here we find the following groups referring to the species we have 

 now to consider : 



Stirps X. Ldchneides. — The body with very copious hairs, unicolorous ; wings 

 rounded, margins entire ; abdomen moderately stout. 



Fam. A. Pigiaeae. — Wings thinly scaled, grey or brown, abdomen broad 

 at the anus. 



Coitus 1. Thaumetopoeae — Thaumetopoea** processioned, \ and 



T. pityocampa. 

 Coitus 3. Dasysomata — Dasysoma\\ catax, D. everia, D. lanes- 

 tris. 

 Fam. B. Vulgares. — Both pairs of wings of considerable size ; abdomen 

 moderately hairy. 



Coitus 1. Pachygastriae — Pachygastria§ trifolii, P. spartii, P. 



quercus, P. medicaginis. 

 Coitus 2. Metanattriae — Metanastria hyrtaea, M. aconyta, M. 



rubi. 

 Coitus 5. Periphobae — Periphoba amalia, P. dumeti. 



* Species which Germar had himself studied. 



f Quercifolia and populifolia are congeneric teste Aurivillius, but quercifolia is 

 the type of Eutricha, Hb., therefore quercifolia and populifolia are eliminated from 

 Gastropacha, Ochs., leaving by Germar's restriction betulifolia and ilicifolia as 

 possible types. These are congeneric teste Aurivillius, and we would name ilicifolia 

 the type. 



** Evidently synonymous with Eriogaster, Germ., of which processioned is the 

 only admissible type. 



I Apparently the residuary type of Eriogaster, populi not agreeing with the 

 generic diagnosis (vide supra). 



|| Therefore distinctly a synonym of Lachneis. 



§ Heterotypical. P. trifolii by the elimination of quercus as the type of 

 Lasiocampd became the type of Pachygastria. 



