ECTOBIUS LAPPONICUS. 



863. BLATTA lapponica flavescens, elytris nigro maculatis. Fn. 618. 



Habitat in casis Lapponum sylvaticoruni inter pisciuin squamas 



frequentissima. Durn pisces absque sale a Lapponibus exsi- 



caiitur, ssepe nnico die. ab hac omnino consumimtur. 



DESCR. Magnitude majoris mnscse. Thoracis clypeus mem- 



braiiaceus, patens, marginatus, ovalis, diaphanus. Elyti- 



membranaceo-pellucida, cornei coloris, stria loiigitudinali 



elevata, in qua striae ducuiitur versus posteriores margines 



utrinque, ut coe'ant in striam longitudinalem minores ad 



angulum acutum ; puncta aliquot iiigricantia teniere elytris 



adspersa. Pedes cornei coloris : tibiae spinosse. Antenna' 



longse, setacese. Al& inferiores aqueae. Cornicula duo 



articulata, recurva supra anum. 



(C. Linnseus, ' Fn. Suec.,' p. 235, 1761.) 



MALE IMAGO (PL VIII, f. I).- -Colour dark yellowish- 

 grey. Length* (head hidden) 10-11 mm. Head and 

 antennae blackish ; pronotum dark, or even black, with 

 pale, pellucid borders. Elytra fully developed, pale 



FIG. 14. Ectobius lapponicus Linnaeus. 1, male, 2, female ( x I'o) ; 

 3, elytron, and 4, wing (more highly magnified). 



yellowish-brown, with a few darker blotches, and a 

 number of small black spots ; nervures pale. Wings 

 fully developed, smoky -brown. Leys often dark, or 

 partly so. Abdomen shining, dark except at the apex. 

 Gerci blackish. 



FEMALE IMAGO (PI. VIII, f. 2).- -Colour much paler 

 usually, and wanting the dark centre to the pronotum. 

 Length 8-9 mm. Elytra truncate, not extending 

 beyond the fourth segment of the abdomen. Wings 

 rudimentary. Abdomen, shining, dark except margins 

 and apex. 



Length of the cockroaches is taken in " rest position " with head 

 hidden. 



