312 Mr. T. T>. A. Cockeiell — Descriptions and 



Nomioides appendiculata (Cameron). 



The type of Ceraiina appendiculata, Cam., in the Cambridge 

 University Museum (Inadu, Maldives, Gardiner) is a Xomi- 

 oides. Abdomen black, witli more or less interrupted yellow 

 bands ; mesothorax and scutelluni green, postscutellum 

 yellow ; metathorax black ; clypeus yellow, with two black 

 bars ; tubercles and upper ed^fe of prothorax yellow ; legs 

 with much yellow ; stigma large ; marginal cell ending, 

 narrowly rounded, on costa ; b. n. strongly bent; second s.ra. 

 small, Cameron''s description agrees with the specimen. 



Lithurgus andrexcsi, sp. n. 



Christmas Island, Indian Ocean (^Andreios). Type in 

 British IMuseum. 



This is the female described as Megachile rotundipennis; 

 W. F. Kirby (/ Monograph of Christmas Island,' 1900, p. 87). 

 The male, which is described first, is a true Megachile (ante- 

 rior tarsi simple ; sixth abdominal segment broadly emar- 

 ginate, with spines at side ; pubescence golden fulvous), and 

 must retain the name rotundipennis. 



L. andrewsi (?) is about 14^ mm. long.; scopa red ; last 

 dorsal segment covered with red hair ; segments 2 to 5 with 

 very narrow white apical hair-bands. It has the rough 

 mesothorax and frontal prominence usual in Lithurgus, 



The new species is related to L. ruhricatus and cognatus ; 

 the three are easily separated ( $ ) as follows : — 



Facial prominence large and bilobed ; vertex 



rather sparsely punctured on a shining 



ground ; hair on inner side of hind tarsi 



dark. (Swan River, Australia.) cognatus, Sm. 



Facial prominence lower, not distinctly or not 



bilobed, vertex densely punctured 1. 



1. Prominence relatively narrow ; hair on inner 



side of hind tarsi dai-k fuscous inibricatus, Sm. (type). 



Prominence very broad, with an obtuse median 



keel ] hair on inner side of hind tai'si bright 



ferruginous andretcsi, sp. n. 



All three have red hair at apex of abdomen. 

 L. andrewsi was taken near Flying-Fish Cove, Sept.-Oct. 

 1897. 



Megachile nivescens, W. F. Kirby. 



Christmas Island. 



The male is easily distinguished from M. rotundipennis by 

 the white hair of head and thorax and very distinct white 



