236 PROC. ENT. SOC. WASH., VOL. 40, NO. 8, NOV., 1938 Aclp, anteclypeus (clypeolus); Apab, abductor apodeme of mandible; A pad, adductor apodeme of mandible; AT, anterior tentorial arm; at, anterior tentorial pit; c, anterior articulation of mandible; d, free lobe (lingua) of hypopharynx; dlcb, attachment of dilator muscles of sucking pump on postclypeus; T)T, dorsal tentorial arm; e, median groove of hypopharynx;/, floor of sucking pump, or of food receptacle (sitophore), on base of hypopharynx;/^, food meatus; g, line of attachment of lorum with postclypeus; h, posterior plates of hypopharynx in walls ot bristle pouches; //, musculus hypopharyngis frontalis; Hphy, hypo-pharynx; /, epipharyngeal plunger of sucking pump;^, epipharyngeal depression receiving terminal lobe {d) of hypopharynx; k, articulation of protractor arm of mandible with lorum; Lor, lorum; Lm, labrum; Ivr, lever of protractor arm of mandible; Md, mandible; mdh, musculus mandibuli hypopharyngealis; rndpr, musculus mandibuli protractor; mdr, musculi mandibuli retractores {Imdr arising on vertex, 2mdr arising on gena); Mth, mouth; MxPl, maxillary plate; pa, protractor arm of mandible; Pclp, postclypeus; Pmp, chamber of sucking pump (preoral cibarial cavity, Cb); PT, posterior tentorial arm; pt, posterior tentorial pit; ra, retractor arm of mandible; sis, sublingual sclerite; Stom, stomodaeum; siis, suspensorial sclerite of hypopharynx; x, mandibular arm of suspensorial sclerite; _v, oral arm of suspensorial sclerite. SOME PSAMMOCHARIDAE FROM SINGAPORE. By Nathan Banks. During a visit of some months to Singapore, the late C. F. Baker collected a number of Psammocharidae there and on the island of Penang. These were sent to me by the National Museum in shipping the Baker Philippine Psammocharidae for my study. I have therefore made a report on these Singapore species. The collection is particularly interesting because of the number of Pseudagenini. Frederick Smith described a few species from Singapore, and Cameron and one or two others have added a few; but much of the fauna is still unknown. Many of the species are the same as occur in the lowland areas of Borneo, Celebes, and the Philippines, and doubtless other parts of the Insulinde. Of a number of old species I have added some descriptive matter, omitted from the originals. The classification is explained in my paper on the Philippine forms. The holotypes and uniques of the material herein discussed are in the U. S. National Museum and some paratypes are in the Museum of Comparative Zoology at Cambridge, Mass.
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