64 



CATALOGUE OF ORTIIOPTEROUS INSECTS. 



avec leurs longues e'pines, la main imprudente que les saisit 

 sans defiance. 



" Je terminerai par une circonstance qui corrobiera celles 

 de M. Fortuma* publiees dans le CXXV* mc numero des 

 'Annales d'Histoire naturelles de Londres,' en Mars 1 845, au 

 sujet de la reproduction des organes. J'ai souvent re- 

 marque cliez le Karabidion horridum le phenomene que 

 Ton observe chez les dcrivisses et generalement tous les 

 erustaces : chez lesquels un membre casse" ne manque jamais 

 de repousscr, mais toutefois sans atteindre la grosseur qu'il 

 avait d'abord. II est important de signaler ce fait parce- 

 que s'il n'est pas nouveau, il est au moins peu connu en en- 

 tomologie et qu'il est meme nie dans des ouvrages recents, 

 et forts estimables, d'ailleurs, tels que ' l'introduction a l'En- 

 tomologie' de Lacordaire, page 472, tome ii." 



2. (174.) Eurycantha Tyrrhaeus, Westw. 

 Plate II. fig. 1. 



Luteo-fusca, capite et segmentis apicalibus abdominis 

 pallidieribus ; nitida ; capite spinis quatuor occipitalibus ; 

 thoracis lateribus valde spinosis ; abdomine inermi ; pedi- 

 bus brevibus ; femoribus crassis, angulatis et serratis ; abdo- 

 mine segmentis basalibus serie duplici tuberculorum versus 

 marginem posticum ; maris subcylindrico, segmentis ajqua- 

 libus ; fceminae elougato, obconico, segmento ultimo longi- 

 tudine trium praecedentium aequante (mas et foem.). 



Long. corp. foem. unc. 4^ ; anten. lin. 16 ; proth. lin. 4 ; 

 mesoth. lin. 8^ ; metath. lin. 6 ; abdom. Un. 13£ -t-lin. 15 

 =lin. 28|. 



Hab. In Insulis Maris Pacifici : " New Hebrides " (Mr. 

 Mare) ; " Loyalty Island " (Sir Geo. Grey). B.M. 



This fine species has the surface of the body glossy and 

 slightly irregular, with minute tubercles and unequal, small, 

 elevated spaces. The head is of moderate size, the hinder 

 part of the crown with four large erect spines. The an- 

 tennae are about 20-jointed, the basal joint of moderate 

 size, the terminal joints gradually longer and more slender. 

 The prothorax is considerably wider than the head, with a 

 deep transverse impression before the middle ; the sides 

 are armed with strong teeth, of which there are also several 

 arranged in pairs on the disc. The mesothorax is nearly 

 square, but rather longer than wide, with two strong spines 

 near the fore end, the sides widely, and the disc more 



* The writer here evidently alludes to two articles by the late 

 George Newport in the Annals and Magazine of Natural History, 

 vol. xv. p. 281, No. 98, April 1845, and vol. xlx. p. 145. No. 125, 

 March 1847. The reader will observe numerous instances in the 

 present work of the diminished size of one or other of the legs, inva- 

 riably regarded by Newport in all such cases as reproductions. 



sparingly spined. The metathorax is considerably dilated, 

 and strongly spined at the sides ; the disc with a few small 

 spines and tubercles. The abdomen is elongate, subcylin- 

 dric in the male, with the segments of nearly equal size ; 

 the terminal one emarginate at the tip, with two oval styles ; 

 the basal segments in both sexes have a pair of tubercles 

 close to the hinder margin ; the abdomen of the female is 

 long and gradually attenuated from the base to the apex, 

 the eighth and ninth segments being carinated, and the 

 latter as long as the three preceding segments united ; the 

 operculum is simple, and does not extend to the tip of the 

 ninth dorsal segment. The legs are rather short and 

 strong, nearly alike in both sexes ; the femora thick, an- 

 gulated, and serrated on each edge ; the tibiae are strong, 

 and widely serrated on the inner edge. The prostemum 

 is very short ; the mesosternum separated into two parts 

 by a transverse impression, fiat, glossy, simple, with a row 

 of six small spines on each side at the lower edge of the 

 deflexed flanks ; the metastemum is flat, glossy, having 

 four or five small spines on each side of the disc towards 

 the anterior angles ; the abdominal segments in the male 

 are rather swollen, in the female simple and convex ; the 

 seventh segment with a longitudinal raised line down the 

 centre. 



Plate II. Fig. 1. The female, of the natural size. 1 a. The 

 three terminal segments of the abdomen seen laterally. 1 b. 

 The abdomen of the male seen from above. 1 c. The three 

 terminal segments seen from beneath. 1 d. The same seen 

 laterally. 1 e. The bind leg of the male. 



3. (175.) Eurycantha micrantha. 



Mas. " Longueur 3 pouccs ; antennes 2 pouces. Brun ; 

 il a la tete, le corselet, 1'abdomen dans les memes formes 

 et les memes proportions que le K. horridum, mais il a les 

 antennes plus longues, les e'pines plus rares et plus courtes, 

 les cuisses non renflees, gamies par dessous de quatre 

 petites e'pines ; les jambes posterieures moins arquees." 



Foam. " Longueur 4 pouces \. Elle ressemble plus a la 

 femelle du K. horridum, mais elle s'en distingue au premier 

 coup d'ceil par ses cuisses non renflees, la brievcte de ses 

 epines et sa couleur brune claire. 



" Les moeurs de cette espece paraissent les memes que 

 celles de la precedente K. horridum." 



Karabidion micranthum, Montrouzier, op. cit. sup. p. 85. 

 Hab. Woodlark Island. 



4. (176.) Eurycantha Scorpionides. 

 Mas. "Longueur 15 lignes ; antennes 12 a 14 lignes. 

 Filiforme, cylindrique, deux e'pines sur la tete, quatre sur 



