1873.1 77 



(1) Pronotum with 6 — 7 lines. 



* Clavus with basal Hues very broad iu- 



wardly striata 



** Clavus with basal lines not broader in- 

 wardly Doiiglasi 



(2) Pronotum with 8—9 lines. 



* Lobes of prosternum narrow, twisted Falleni 



** Lobes of prosternum broad dlstincta 



Tf^ Smaller species (23- — 2f lines long). 



(1) Pronotum with 6 lines. 



* Dull fuscous-brown, with indistinct mark- 



ings moesta 



** Shining fuscous - black, with distinctcr 



markings fossarum 



(2) Pronotum with 7 — 9 lines. 



* Marginal channel of elyti'a black (inner 



basal half yellowish) Fabricii 



** Marginal channel of elytra pale. 



o Markings of pronotum & elytra distinct. .cZecora 



""* 00 Markings of pronotum & elytra obscure. 



II Sternum black borealis,J).&S. 



nil Sternum entirely pale Whitei 



XX Clavus with parallel, scarcely interrupted or 

 shortened lines. 



t Pronotum with irregular, interrupted hues duhia 



ft Pronotum with regular lines. 



* Transverse markings of corium crossed by 



2 distinct black longitudinal hues . . . limitata 



** Transverse markings of coriiun crossed by 



3 distmct black longitudinal lines ...semistriata 



*** Transverse markings of corium crossed by 



4 distinct black longitudinal lines (of 

 which one is at the posterior inner 

 angle) venusta 



B. Pronotum with a distinct central keel nearly thi'oughout its length. 



1. Pronotum with 10 — 12 lines Sharpi 



2. Pronotiun with 8 — 9 hues intricata 



Oeeinocoeixa. 



Shining black. Pronotum with about 8 indistinct impressed concolo- 



rous transverse lines alpestris 



Ctmatia. . 



1. Pronotum twice as broad as long, membrane of elytra and wings 



present Bonsdorffi 



2. Pronotum about four times as broad as long, membrane of elytra 



and wings absent coleoptraia 



THE " LIFE-HISTOEY " OP THE CORIXIDJE. 



I liave beeu able to fiud very little record of tlio life history of 

 these iusects, and, iiufortunatcly, my own notes are but limited. 



