SYNOPSIS OF CONTENTS OF VOLS. I TO IV. 



521 



PAGE. 



villius,' 453 ; Dyar's 455. Phy- 

 togeny, 457. Mutual relation- 

 ship of tbe genera, 458. Dyar's 

 phyla. — Explanation of his 

 phylogenetic tree (plate vii., 

 placed opposite pa^e 462), 459. 

 Extent of specialization in 

 larvae and imagines, 46 1. Bacot's 

 suggestions on the phylogeny 

 of the group 



Lachneidae 



The "eggars" and " lappets." — 

 British Lachneid moths mostly 

 isolated representatives of gen- 

 era. — Pachygastriids, a recent 

 evolutionary group 



Pcecilocampinae 



Pcecilocampidi 



Pcecilocampa 



P. populi 



(ab. virgata, vars 

 calberlae, alpina) 



Trichiurinae 



Trichiuridi 



Kirby's Trichiurids heterogeneric. 

 Chilian species with Trichiurid 

 facies. — Achnocampa and 

 Trichiura 



Trichiura 



Achnocampa not congeneric with 

 Trichiura. — Egglaying, 482. 

 Larval habits. — Cocoon. — Diff- 

 erentiation of Achnocampa 

 and Trichiura 



T. crataegi 

 var. arias 

 (ab. freyeri) 



Lachneinae 



Lachneidi 



Lachneis and Autosphyla 



462 

 4<>3 



463 

 4<33 

 464 

 464 



4 6 5 

 canensis, 467 



468 



481 



481 



481 

 481 



483 



483 

 486 

 488 

 498 

 498 

 498 



PAGE. 

 Cnethocampa versus Eriogaster. — 



Egglaying habits. — Cocoons . . 499 

 Lachneis . . . . . . 499 



Variation ofneuration. — Varia- 

 tion of European species of 

 genus, 500. Sexual dimorphism 501 

 L. lanestris . . . . . . . . 501 



(vars. arbusculae . . . . 503 



aavasaksae, grisea, senecta) . . 505 

 Malacosominae .. .. ..521 



Malacosomidi .. .. ..521 



Malacosoma .. .. .. ..521 



Characters, 522. M. neustria 

 the predominant species. — Phy- 

 logenv. — Sexual dimorphism. — 

 Evolution of specific coloration. 

 — The M. neustria group, 523. 

 Hybridity : hybrids — caradjae, 

 schaufussi, penzigi, 524. Egg- 

 laying ; source of gummy cover- 

 ing. — Larvae — habits — sub-divi- 

 sion of American species into 

 gregarious and non-gregarious. 

 — Larval variation, 527. Habits 

 of larva of M. alpicola. — Larval 

 structure. — Cocoon, 527. Pupa. 

 — Imaginal habits, 528. — Dis- 

 tribution of British species . . 529 

 List of species . . . . . . 529 



M. castrensis.. .. .. ••531 



Names of colour-vars. i . . 532 



ditto ? .. 533 



ab. taraxacoides, (vars. veneti 534 

 hilleri, kirghisica) . . . . 535 



M. neustria . . . . . . . . 546 



Names of colour-vars. . . 548 



abs. quercus, confluens, annu- 

 laris, cervina -virgata, vulgaris, 

 unicolor . . . . . . . . 551 



pyri, (vars. parallela, testacea) 552 



VOL. III. 



Pachygastriinae . . . . . . 1 



Alliances. — Tribal divisions 1. 



Gynandromorphism in subfamily 2 



Pachygastriidi . . . . . . 3 



Pachygastria . . . . . . 3 



(josua 5 



eversmanni, nana, concolor) . . 6 



P. trifolii 7 



Names of colour-vars. . . 10 



Transitional forms .. .. 13 



ab. medicaginis . . . . 14 



(var. ratamae, ab. iberica . . 15 



vars. mauritanica, codes .. 16 

 ab. romana, var. semifasciata, 



ab. terreni . . . . . . 17 



var. maculosa) .. .. .. 18 



Lasiocampa .. .. .. 31 



Allied species, 32 ; oinginal de- 

 scriptions of L. grandis, L. 

 serrula. — Temperature experi- 

 ments, 33. Hybridity, 34; 

 hybrids — bacoti, warburgi, 



intermedia, prouti, complexa, 

 35 ; inversa, complicata. — Pce- 

 cilogony. — Urticating hairs, 36. 

 — Larval differences in the 

 various races. — Larval hybrids, 

 37. Cocoon, 39. Assembling, 

 41. Reputed parthenogenesis. 

 — Gynandromorphism . . . . 42 



L. quercus . . . . . . 42 



Names of colour-vars. j • • 55 



ditto ? 56 



abs. tenuata . . . . 57 



catalaunica, dalmatinus), spartii 58 

 (vars. meridionalis, . . . . 59 



viburni) . . . . . . 60 



abs. roboris . . . . 65 



guillemotii . . . . 66 



(var. burdigalensis, ab. mar- 

 ginata), vars. sicula . . . . 67 



(subalpina, alpina) . . . . 72 



callunae . . . . . . 73 



(lapponica) . . . . . , 85 



