80 Mr. D. Sharp's Contributions to the 



Deinopsis. 



Only five species of this extremely distinct and peculiar 

 genus have yet been described, but they come from very 

 different parts of the world, so that this genus is probably 

 nearly iiniversally distributed. No species has hitherto 

 been made known from South America ; but I have, be- 

 sides the two species here described, one or two others from 

 that quarter, so that it would seem probable the species 

 will prove to be rather more numerous there than else- 

 where. 



1. Deinopsis Mattheicsi, n. sp. Opacus, nigi'o-fuscus, 

 dense subtilissime puuctatus. Anteuuis, palpis pedibusque 

 rufescentibus, antennis medio infiiscatis. Long. corp. 

 2 1 lin. 



Very similar in form to D. fuscatus, but larger, and 

 with the antenna? more slender and elongate ; they are 

 rather less than ^ lin. in length ; 3rd joint a little shorter 

 than 2nd, but a little longer than 4th ; 5 — 9 very similar 

 to one another in length; 10th a little shorter than 9th; 

 11th joint shorter than 10th, and terminated by a seta- 

 like spine. The palpi and front of tlie head are obscure 

 red. The margins of the thorax are also very obscurely 

 red. The elytra are very deeply sinuate at their outer 

 angle. 



A single individual of this species was foimd by Mr. 

 Bates, but 1 have no exact indication of its locality ; the 

 specimen is, I believe, a female. 



I have named this species in honour of the Rev. A. ]\Iat- 

 thews, who has displayed a most extraordinary amount 

 of entomological skill in his treatment of the Trichopte- 

 rygidcB, and to whom this genus is of special interest, 

 as he considers it to make a remarkable approach in many 

 points, both of internal and external structure, to the 

 Trichop teryg idee. 



2. Deiyiopsis longicornis, n. sp. Ferrugineo-nigra, 

 antennis, palpis pedibusque rufis ; antennis tenuissimis, 

 valde elongatis. Long. corp. (abdomine extenso) 3 lin. 



Very similar in form to D. fuscatus, but much larger, 

 and of a more rusty black colour. The antennae are yel- 

 lowish-red, very slender and elongate, being just over one 

 line in length. The front of the head, the margins of the 

 thorax, and the extremity of the hind body, are of an 



