SUPPLEMENT TO PSYCHE. 



[May 1899. 



several small species {Ceratopogon. 

 Limosina^ Scatopse, Drosophila), and 

 all parts of the mass were overrun with 

 Coleoptera. The desicated hard part 

 produced two species of small Calan- 

 i\\u\ae {Cossonus hubbardi ^7.., n. sp, 

 and Apoti'epiis densicollis Casey), 

 and also a few specimens of both Scyd- 

 maenidae {Eu?nicrus lucanus Horn) 

 and Pselaphidae ( Tyriis elongatiis 

 Brend., Trimiiun pu7icticolle Lee), 

 numberless small Aleocharinae and a 

 few Trichopterygidae ( Trichopteryx, 

 two apparently undescribed species) . 

 The inoister parts were alive with 

 Hydrophilidae, both large and small 

 {Dactylosiernti m cacti'Lez., Pelosoma 

 capillosttni Lee, Ciypto!euru?n cerei 

 Schwarz, n. sp.) and small Histerids 

 of various species (^Paroniahis opimtiae 

 Lee, cfl«^orj Lee, gilensis Lee, Acri- 

 ius ari'zonae Horn) . There were in 

 numbers two large Styphylinidae, a 

 Philontid with large head and red 

 elytra (yBelonuchus ephippiatus Say) , 

 the other a monstrous Aleocharid, the 

 largest I ever saw (^Mascochara se?ni- 

 velutina Solsky) . Besides these there 

 were countless smaller Aleocharids 

 {Maseochara opacella Sharp, M. pii- 

 berula Case}', Apheloglossa riijipennis 

 Casey, three or four species of Homalota, 

 a Falagria and an undetermined genus). 

 Among the Dipterous larvae, and 

 apparently feeding upon them, were 

 several perfectly huge Histerid larvae, 

 over an inch long, and to-day on return- 

 ing I found the imago (Hololepta 

 yucateca Mars.) deeply buried in the 

 very heart of the trunk and always in 



the galleries of the large Calandiid | 



CactopJtagus validiis Lee Of this 

 Calandrid I have not found the imago, 

 but its larva resembles very much 

 that of Rhynchophoriis cruenfatus. 

 Among other Staphylinidae found in ' 



the moister portions of the pulp there j 

 are three Tachyporids, one very large ' 

 { Physctoponis grossidus Lep.), and 

 the two othei rather small (^Erchomiis 

 convexus Er. and E. pnnctipeiiiiis 

 Lee) ; a few specimens of A'rt«///o//««'5 

 ditnidiatzis Lee , Llthoc]iaris tabachia ! 

 Casey, very abundant, and rarely a spe- 1 



cies of Omalium {O. cacti Schwarz, ' 



n. sp.) 



I took home yesterday a sack-full of I 

 the debris, and all this morning I was 

 occupied in examining it, and every 

 time I opened the sack I found some- 

 tliing new. Some of the small Rhyn- 

 chophora I could not have discovered i 

 in the field; they are as difficult to see \ 



as a Micropeplus among old leaves, < 

 although they are much larger and live 

 in burrows in the hard outer crust. In ' 



the dry debris there is also Ditofiia \ 



gracilis Sliarj), not rare, Ditoma sul- \ 

 cata Lee, common, and a larger Trog- 

 ositid {Alindria teres Melsh.), very j 

 rare ; there were also a few specimens 5 



of a reddish Tenebrionid {Ulosonia J 



margiiiata Lee) ; a narrow species 

 ( Cyiiaeiis angusttis Lee), two ] 

 smaller Hololeptas (//'. cacti Lee 

 and vicina Lee), and a minute Staphy- ' 

 linid ( Oligota n. sp.). 



It is very singular that in this fer- 

 menting cactus pulp the interior of 1 

 which was saturated with moisture I 



