160 



OBSERVATIONS OX THE 



I T aptera inhabits round berry-like galls on the trunks of 



C. roses forms the mossy galls mec with on rose-bushes ; 

 and the oak-apples are produced by a fourth species. 



I am indebted to Mr. Haliday for much valuable information 

 of the structure and economy of these insects, of which there 

 are more than one hundred British spe c 



I. — Anacharis, Dalmau VaL II. p. ill 



II. — '-Udatf.) Corpus mediocre, compactum, con- 



vexum, atrum, laeve, nitens, parce et breviter birtum : caput 

 transversum, subquadratum, thorace paullo lathis, laevissimum, 

 nitidissimum : mandibular mediocres, quadratae, subarcuatae, den- 

 tibis magnis aeutis 3 armatae : maxillae longae, graciles. i 

 cuatae ; laciniae acuminata^ intus lobatae ; palpi 4 - articulati. 

 graciles, longitudine mediocri ; artieuli 1°*. et 2°*. mediocres 

 lineares subaequales, 3°*. longicyathiformis intus apice angulatus 

 2*. paullo breTior, 4 03 . fusifonnis fere linearis 3°. longior et 

 gracilior : labium longum, angustum, lanceolatum ; palpiger 

 furcatus : ligula brevis, lata, ciliata : palpi 3-articulati, beeves, 

 clavati; artieuli 1"*. et 2 1 *. graciles, lineares, hie brevissimus ; S°*. 

 angusti-cvatus. 1°. longior et crassior : antennae articulis mari 14, 

 fern. 13, filiformes, corpore paullo longiores, breviter pubes:ir.:r5 ; 

 artieuli l* 5 . et 2°*. nitidi, hie subrotundus parvus, ille msiformis 

 validas ; seqoentes ad postremo proximum subhliformes, basi et 

 apice paullo angustiores, longitudine gradatim decrescentes ; 

 ultimus acuminatus, praecedente longior et gracilior : thorax 

 ovatus, altns. postice angustior, supra transverse scidssime unda- 

 tos: prothorax supra brevissimus vix conspicuus: mesothorax 

 maximus ; parapsidum suturae bene determinatae, punctata?, 

 postice mutuo accedentes ; paraptera et ephnera conspicua ; scu- 

 tellum extans, plus minusve exsculptnm, parum nitens, apice 

 abrupte declive, dum supra conspicitur ovatum, turn a latere 

 angulum subacutum fingens : metathorax mediocris, scaber, 

 obscurus, declivis : petiolus brevis, gracilis, teres, glaber, parum 

 nitens, scite impresses et sulcatus, metathorace infimo insertus : 

 abdomen ovatum, giabrum, thorace angustius et plerunque paullo 

 brevius, non compressum nee acuminatum ; segmenta 6 trans- 

 versa recta supra conspicua, basale maximum, sequentia ad apicale 

 ■-- --':- '---::.-:-:.-: -iZ'^'.'.^ • ::.::i--- . . ._ i:._-^:~ : :- 

 culta ; oviductus minutus, reconditns : pedes graciles, simplices, 

 recti, brevissime pubescentes ; tibiae apice bispinosae : protibiae 

 spina unica longa valida curva armatae ; tarsi articulis 1°. ad 4 Hm . 

 longitudine decrescentflms, S**. 4°. longior ; ungues et pulvilli 



