56 



[March, 



Wells ; those forwarded by Mr. MacDougall, also bred from a 

 Cattleya, are believed to have been imported in Venezuelan plants. A 

 description of the beetle is appended below, and the last-named 

 entomologist informs me that he intends shortly to descri])e and ligure 

 its larva and pupa. 



The other insect mentioned is the pupa of a Longicovn found in a 

 freshly imported plant of Bendrohium ivardlanum in Dr. Cfodman's 

 orchid-house at Horsham, This beetle can be safely identified as 

 Diaxenes dendrobii, Gahan, a species known to attack the pseudo- bulbs 

 of Dendrobium nobile, an orchid inhabiting Burma and India. 



MORDELLISTENA CATTLEYANA, U. sp. 



Moderately elongate, narrow, shining, closely minutely punctate, finely 

 pubescent ; testaceous, the elytra with two transverse fuscous fasciae (one before 

 the middle, the other towards the apex, the anterior one sometimes interrupted 

 at the suture), the eyes, and the minute spines at the apex of the posterior tibia, 

 and of each posterior tarsal joint, as well as those forming t]ie olilique ridges, 

 black ; the wings smoky black in their outer half (as seen folded). Antennae 

 slender, joints 3 and 4 short, together not longer than 5 ; 5 — 10 elongate, shorter 

 in ? , equal, 11 slightly longer than 10 ; terminal joint of the maxillary palpi 

 elongate-triangiilar, similar in the two sexes, moderately stoiit, first joint of the 

 posterior tarsi with two, and the second joint with one, and the posterior tibite 

 with three, oblique rows of miniite spines, the first row on tlie tibiae extending 

 nearly across their outer face ; pygidium very long and slender ; penis-sheath 

 of (? di-awn out into a narrow point at tip. Length (excluding pygid.) 

 2— 2tL mm. ( J ? •) 



Hah.: ? Venezuela (Mus. Brit.). 



The above description has been drawn up from twelve specimens, 

 one of which (a c?) is mounted in Canada- lialsam. M. cattJeyana is 

 easily recognizable by its testaceous general coloration, the fusco- 

 bifasciate elytra, the blackish wings, the very short third and fourth 

 joints of the antennae, and the number and position of the oblique 

 ridge-like rows of minute l)lack spines on the posterior tibite and 

 tarsi. The Mexican M. xanthopyga and M. annulipyga, both figured 

 by me in the " Biol. Centr.-Am.," in 1891, are allied forms. The 

 anterior tibioe are not elongated in the male, and the sexual differences 

 are slifjht. 



Horsell, Woking: 



February, 1913. 



