74 Ins. 
XIII. INSECTA. 
Pupal character retained in imago of Onthophagus , Franqois (422).— 
Vanessa antiopa with larval head, Speiser, p. 155, Illustr. Zeitschr. Ent. 
iv .—Orgyia antiqua with larval head and thorax, Bargmanx, Illustr. 
Zeitschr. Ent. iv, p. 204. 
Alternation of generations in Cynipidce and Aphidce , Peyerimhoff 
(903). 
Origin of worker-caste, Peyerimhoff (903). 
4. General Subjects. 
Variation and Teratology. 
Inbreeding and variation in Spilosoma lubricipeda, Tutt, p. ii, P. ent. 
Soc. London 1899. 
Breeding from varieties, Arkle, p. 122, Entomologist 1899.—Varieties 
in one brood of Lep., Fyles, p. 97, Canad. Ent. 1899. 
Correlated aberrations in larva of Tenebrio , Heymons (538). 
Halisidota , the different forms of larva that produce the same kind of 
moth, Lyman, p. 24, Rep. ent. Soc. Ontario xxx. 
Variation and specific characters in Typhlocybini , Baker (56). 
The kinds of variation in Rhopalocera and their nomenclature, Stichel, 
Berlin, ent. Zeitschr. xliv, pp. 17-20. 
Aberrations (“pathological varieties”) of Papilio machaon, Spexgel 
(1110). 
Polymorphism and dimorphism in 1ST. American Rhopalocera , Lyman 
( 776).—Female polychromism in Gantharis , Fiori (380).—Dimorphism of 
males in Bythinus , Fiori (383).'—Pcecilandry in Pselaphidce, Peyerimhoff 
( 902).—Dimorphism of wings of a Cecidomyiid , Meijere (814).— Ceci- 
domyiid with dimorphic female, Rubsaamen, p. 543, Biol. Centrbl. xix. 
Variation in wings of Lepidoptera , measurement statistics, sex, Field 
( 378).—Variation of tibial spines of Agrotis , Cappel (191). 
Saturnia pupating without cocoon, Paravicini (882). 
Seasonal and other varieties of Eulepis , Rothschild & Jordan (1002).— 
Seasonal phases of Huphina, Butler (172).—Local races and seasonal 
forms in African Rhopalocera, Aurivillius (46).—“Wet and dry phases,” 
Butler (176). 
Variation of Bombus latreillellus , Perez, p. 269, Bull. Soc. ent. France 
1899.—Variation of Coptolabrus , Born (136).--Variation in 1600 specimens 
of a beetle, Ohaus (874).—Variation of Zonabris, Escherich (347).— 
Variation, with statistics, of Cryptocephalus punctatus , Hamy, p. 45, Bull. 
Mus. Paris 1899. 
Wingless varieties of Coleoptera, Jacobson (588). 
Variation and brachypterism in Blissus , Webster (1219). 
Two generations of Tropideres albirostris , the second a var., Formanek, 
p. 48, Wien. ent. Zeit. 1899. 
Many notes on variation in Alpine Carabits, Born, “Meine Excursion,” 
Soc. Ent. xiii, xiv, passim. 
Variation in colour of larvae of Papilio polyxenes , Soule (1105). 
Localised variation of Mamestra persicarice, Donitz, p. 11 SB., Berlin, 
ent. Zeitschr. xliv. 
Percentage of a local var., Newbery, p. 159, Ent. Mag. 1899. 
Comparative dimensions of Bulgarian and West-European Lepidoptera, 
Bachmetjew (55). 
Variation in the Hawaiian Islands, Perkins (895-897), Meyrick (828). 
Vars. of Lep. in Roumania, Fleck (389). 
Variation of British Lep .; numerous cases in Ent. Rec. 1S99, under 
heading “Variation.” 
