222 HYMENOPTERA. 



Heriades trimcorum, Spin. Ins. Lig. fasc. 2. p. 9. 

 Curtis, Brit. Ent. xi. tab. 504. 

 St. Farg. Hym. ii. 405. 2. 

 Blanch. Hist. Nat. Ins. iii. 408. 

 Zett. Ins. Lapp. p. 46"!. 1. 

 Smith, Zool. iv. 1447. 1. 

 Nyland. Ap. Boreal, p. 271. 4; Revis. Ap. Boreal, p. 278. 



Hab. Britain ; France ; Italy ; Germany ; Sweden ; Finland ; 

 Lapland. 



Genus 18. CERATINA. 



Hylseus, pt., Fabr. Ent. Syst. ii. 302 (1793). 

 Apis, pt., Fabr. Ent. Syst. Supp. 273(1796). 

 Megilla, pt., Fabr. Syst. Piez. 328 (1804). 

 Prosopis, pt., Fabr. Syst. Piez. 293 (1804). 

 Ceratina, Latr. Hist. Nat. xiv. 50 (1805). 



The labial palpi four-jointed, the two basal joints elongate, the 

 two apical ones minute, situated near the apex of the second 

 joint at the side ; the maxillary palpi six-jointed, the three basal 

 joints of about equal length, subclavate, the three apical ones 

 minute ; the superior wings having one marginal and three sub- 

 marginal cells. Claws of the tarsi bifid. The labial palpi are 

 four-jointed. 



Latreille and St. Fargeau only observed three joints to the 

 labial palpi ; the maxillary palpi are also incorrectly figured in 

 the ' Exploration Scieutifique de I'Algerie.' 



1. Ceratina c^rulea. B.M. 



Apis cserulea, Vill. Ent. Europ. iii. 88. t. 8. f. 25 <? . 



Apis cucurbitina, Rossi, Mant. i. 145. 325. 



Apis callosa, Fabr. Ent. Syst. Supp. 277- 122-3. 



Apis cyanea, Kirby, Mon. Ap. Angl. ii. 308. 71- 1. 17- f- 7 ? • 8 <? . 



Ceratina callosa, hatr. Gen. Crust. Ins. iv. 160. 



St. Farg. Sf Serv. Encycl. Meth. x. 18. 1. 



Blanch. Hist. Nat. Ins. iii. 409. 



Eversm. Bull. Mosc. xxv. 88. 1. 

 Ceratina albilabris, Latr. Hist. Nat. xiv. 50. 



Spin. Ins. Lig. i. 151. 1 $ . 

 Megilla callosa, Fabr. Syst. Piez. 328. 31. 

 Ceratina nitidula. Spin. Ins. Lig. 151. 2 c?; ii. App. 80. 

 Ceratina cyanea, St. Farg. Hym. ii. 505. 1. 

 Ceratina cairulea. Smith, Zool. iv. 1448. 1. 



Dufour, Ann. Soc. Ent. Fr. ix. (1840) p. 15. 5. 



Hab. Britain ; France ; Italy ; Russia. 



