184 Mr. M. Bun's Monograph of 



In venatiou and structure, this form resembles H. 

 ritfipennis. It is however even more compressed, lighter 

 in colour, and the wings are clear yellow. 



31. Calamus, Sauss. 



Linearis, eloiigatns, gracilis. Caput valde eloiigatuin, subspiui- 

 forme, horizontale prod actum ; rostrum ita I'ormatum, apice trunca- 

 tuin, supra coucavum, striatum. Oculi haud pronunuli, longe pone 

 medium capitis inserti. Antenuja ensiformes, deplanatie. Pronotum 

 c;ipite liaud latins, parallelum, striatum, antice et postice truncatum, 

 tertiam partem longitudinis capitis ;equans. Prosternum tuberculo 

 parvo instrucfum. Elytra angustissima valde elongata, apice acuui- 

 inata. Alaj breviores, $ plus minus colorataj, $ hyalinai ; ^ 

 abdominis longitudine, $ abdominis dimidio breviores. Abdomen 

 lineare, supra carinatum. Pedes graciles, breves ; femora postica 

 capite haud longiora, lobis genicularibus brevibus, acutis,* genilbus 

 supra in spinam longam productis. Tibite posticse femora breviores. 

 Lamina subgenitalis (^ cuculluta, subtus pilosa, valde elongata, 

 acuminata. 



Calamus. Sauss., 1861, Ann. Soc. Ent. Fr. (4), i, 47G, 

 Karsch. 1893, Berl. Etit. Zeit., xxxviii, p. 56, fig. 3. 



In spite of the presence of a small prosternal tubercle, 

 this genus in every other way belongs here. The only 

 specimen in the Brunner collection was arranged among 

 the Meso'pcs. I have no hesitation in following Karsch 

 aud ranging it with the Aviyci. 



32. Calamus linearis, Sauss. 



Fusco-testaceus. Elytra immaculata, testacea, apice pallidiora. 

 Alai c5 abdominis longitudine, hyalinae, leviter fusco-tesselatse, vel 

 fere totiie fuscjic, leviter pallido-punctat* ; ^ abdominis dimidio 

 breviores, byalinic, incolores. ^ $ . 



* It should be noticed that it is not the Idteral genicular lobes, but 

 the superior one, that is produced into a spine. 



