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Show 1900.] INSECTS AND ARACHNIDS FROM SOMALILAND. 39 TRUXALIS UNGUICULATA Bamb. North-west Somaliland, Whardi Datal, July 26, 1895. Seve females, one male. MACHJERIDIA BILINEATA Stal. North-west Somaliland, Whardi Datal, July 26, 1895. I refer a mutilated larva to this species. EPACROMIA THALASSINA (Fabr.). West Somaliland (1895). One example. OEDIPODID/E. HUMBERTIELLA TENUICORNIS (Schaum). West Somaliland : Boholo Deno, near B. Shebeyli, June 24,1895 ; three male specimens, one female. Somaliland' (1895 or 1897); one male and one female. This species is purely a native of tropical Africa. GASTRIMARGUS VERTICALIS Sauss. West Somaliland (1895). One male and one female specimen. Var., fusca, fascia fusca alarum vixperspieua. North-west Somaliland, Hargaisa, April 25-28, 1895. One female specimen. G^DALEUS INSTILLATUS, sp. n. Pronotum haud valde elongatum, fusco-testaceum, indistincte fusco-notatum. Tempora acuta, trigonalia. Statura minore. Gracilior. Frons subreclinata ; costa frontalis latior, margin-ibus a vertice subdivergentibus ; vertex ad frontem haud rotun-datus. Pronoti crista humilis, acuta, sinuata, margine postico acutangulo. Elytra venis spuriis completis, area ulnari irregulariter reticulata, fusco-testacea, dimiclia basali fasciis 3 latis fusris, 2 laiis pallidis, opacis, dimiclia apicali minus hgalina, maculis nebulosis infuscatis ornata. Alee basi fiavicantes, fascia fusca lata sernilunari, marginem posticum attingenti ornatce, ultra heme hgalince, apioe macula fusca, lobos includenti ornata. Pronotum metazonaquamprozona haud brevior. Femora 2)0Stica testacea, extus punctulata, vel irregulariter fasciata. Tib'ueposticce rufescentes. d $• o*. 2. Long, corporis 20 mm. 29 mm. „ pronoti 5 6 „ elvtrorum 22 26*5 ,, femorum posticorum .... 15 Patria. West Somaliland (1895). Two specimens. Types, male and female, in Hope Collection, Oxford. This new species falls into the second division of de Saussure's subgenus QZdaleus sensu stricto. It is a great deal smaller than |