DERMAPTERA SALTATORTA. 67 



black dots and longitudinal streaks; dorsal keel very slight; transverse 

 impressed lines distinct ; hind part elongated, angular. Prosternal spine 

 slender. Hind femora a little longer than the abdomen, black beneath 

 and with two black patches above. Hind wings cinereous. Leugth of the 

 body 7£ lines; expansion of the lore wings 18 lines. 



a. Bombay. Presented by Dr. Leith. 



Page 690. 

 Caloptenus Clavelii. 

 Calliptamus Clavelii, Lucas, A. S. E. F. 2me Ser. ix. 364. 

 Algeria. 



Caloptenus similis. 

 similis, Watt. Verh. Zool. Bot. Ges. Wien. xi. 224. 

 Egypt. Syria. 



Page 706. 

 Caloptenus signatipes. 

 Acridium delineolatum, p. 631 — A. innotabile, p. 629. 



Page 707. 



Caloptenus immunis. 



Fcem. Testaceus ; fastigium parvuyn, subhexagonale ; prothorax vix 

 carinatus ; prosterni spina crassa, non attenuata ; abdominis dorsum 

 basi nigricans ; femora postica nigricante triplagiata, abdomine 

 paullo longiora; tibia? postica rufescenies ; alee antica venulis trans- 

 versis plurimis nigricantibus ; ala postica diaphana. 



Female. Testaceous, stout. Head short; tip of the vertex small, 

 depressed, subhexagonal ; front erect, with four slight keels; inner keels 

 nearly parallel ; outer keels diverging. Eyes subfusiform. Prothorax 

 widening slightly hindward, with an extremely slight keel and with 

 extremely slight transverse impressed lines; fore border and sides straight; 

 hind border rounded. Prosternal spine thick, not tapering towards the tip, 

 which is much rounded. Abdomen blackish above towards the base. Hind 

 femora a little longer than the abdomen, with three blackish patches. 

 Hind tibiae reddish, almost as long as the hind femora ; spines black 

 towards the tips. Fore wings almost as long as the body ; many of the 

 transverse sectors blackish. Hind wings cinereous, testaceous along the 

 apical part of the costa ; veins mostly pale. Length of the body 12 — 16 

 lines ; expansion of the fore wings 30 — 34 lines. 



The keel and the strongly-marked transverse impressed lines of the 

 prothorax and its more elongated and angular hind border distinguish 

 C. strenuus from this species. It is a little stouter than C. signatipes, from 

 which it also differs in having red tibiae. 



a. Bombay. Presented by Dr. Leith. 



