Gcnei'd and /Species of ColooiAora. 477 



stirt' liairs, mixed wifli a .sli^'lit ]>()\v(lory exiidalioii ; licud imioh nar- 

 rower tlian the prothorax, retracted to the eyes; antonnjo oxtendiiii^; to 

 nearly half the length of the body ; prothorax very slightly convex, tlie 

 inflected sides nearly three times tlie breadth of the epipleura?, which 

 ai'e very distinct ; body beneath black, shining ; legs with a tljin brdwn- 

 ish pubescence. Length 8 lines. 



MiMOPEus [Helopinse]. 

 Caput reti'actum ; clt/peushonte confusus, apice emarginatus. Ocidi trans- 

 versi, distautes. Palpi maxillares secm-iformes ; lahiales triangulares. 

 Mentum antice latum, basin versus angustatum. Antenna breviusculai, 

 art. tertio longiore, 4-7 brevioribus obconicis, 8-10 latioribus et com- 

 pressis plus minusve obconicis, 11 rotundato. Prothorax transversus, 

 ad latera rotundatus, antice angustior, basi bisinuatus, apice fortiter 

 emarginatus. Elytra ovata, prothorace latiora, humeii angulis pro- 

 thoracis obtecti. Pedes mediocres ; tibicB apicem versus crassiores, cal- 

 caratae ; tarsi antici breves, postici elongati tenues. Prostermon pro- 

 ductum. Mesosternu7n breve, triangulare. Processus interfemoralis 

 quadratus, antice rotundatus. 



In the character of its antennae this genus is nearer to Misolampua 

 and its allies than to Helops, with which it agrees in habit. In 

 this respect, however, it still more nearly resembles some species of 

 Amara. 



Mimopeiis amaroides. 

 M. glaber ; capite prothoraceque nigris, nitidis ; elytris purpureo-brunneis, 

 pimctato-impressis, subtilissime granulosis; antennis pedibusque ferru- 

 gineis. 

 Hah. Australia. 



Smooth ; head and prothorax black, shining, finely punctured, lateral 

 margins of the latter slightly produced, bordered with a slightly raised 

 edge ; scutelluni transversely triangular ; elytra dark pui-plish brown, 

 opake, with numerous irregular punctiform impressions, the intervals 

 dotted with very minute granules, epipleura) ferruginous, broad at the 

 base, gradually narrowing towards the apex ; body beneath dark pur- 

 plish brown, shining ; legs, antennte, and palpi ferruginousi. Length 

 6 lines. 



Gnesis [Helopinse]. 

 Capid subverticale, antice dilatatum et integrum ; lahruni emarginatum, 

 basi angustius. Oculi transversi, sinuati. Palpi maxillares art. ult. secu- 

 riformi. Maxillcc lobo interno liamato. Paljn lahiales art. ult. ovato. 

 Lahimn integrum, basi angustius. Mention trapczifonne, Antenn<s 

 claviformes, articulis terminalibus transversis compressis, basalibus ob- 

 conicis. Prothorax subcylindricus, tenuiter marginatus, antice truncatus, 

 basi in medio paulo lobatus. Elytra ovata, prothoraci arete applicata. 

 Pedes breves : femora antica subtus unidentata : fihia- cnrvatac. breviter 



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