GOO 



liNSECTA. 



Other Apia! IK, forming the subdivision OucuUius, are similar to the preceding in their postedor 

 tarsi, and also i.i the labial palpi, which are like scaly setfc ; but they are destitute in both sexes of a 

 ventral pollen-brush, and have the labruni in the form of an elongated, truncated triangle, or short 

 and nearly semicircular. The scutellum is emarginate, bideutate, or tubercular. They appear to de- 

 posit their eggs in the neots of other Bees, whence I have given them the name of Cuckoo-hces. 



Some, nearly glabrous, liave the parag-loasjE much shorter than the labial iialpi. 



Ammobates, Latr. (witli 6-juinted maxillary palpi), and 



PA^Vt'remwA', Latr. (with 2-joiiitfd maxillary palpi), have the labmni elonii-ate-trianfi;ular. In others it is short, 

 semicircular, and semi-ovate. 



Epeolns, Latr. (with three complete cubital cells, and l-jiilnted ma.vilLiry ]ialpi), and 



Noiiiada, Fab., have three complete cubital cells; the last lias i>juinted maxillarj' palpi. [A very uuuktous t^a-nus, 

 the species of which greatly resemble small Wasps.] 



Pasites, Jur., has only two cubital cells and -i-joiiited palpi. 



Other Cuculinae have the body hairy in spots, and the paraglossae nearly equal the labial palpi in length. 



Melecto, Jur., with 5- or 6-jointed maxillary palpi. [^M, punciaia, a common, handsome British Bee.] 



Crocha, Jur., with 3-jointed maxillary palpi, and the scutellum elongated and notched. 



Oxiea, Ktug, has the labrum oblong, and the maxillary palpi obsolete or only 1-jointed, and very minute. 



The terminal suh(li\i^ion of the Solitary Bees, named Scopulijjpde.s from the thick coating of hairs of t lie 

 liiud legs, in which also the basal joint of the tarsi hasits outer edge dilated, so that the following juint is 

 inserted nearer to its iiiuer angle. The under side of the alidoraen is naked, or destitute of a pollen brush. 



In some tlie maxillary palpi a-ix* composed of four or six joints, and in many of these the mandibles have only ouq 

 tooth in tlie inside. They fly with great rapidity, and make a loud buzz,ing. 



Eucera, Latr., comprising those species which have the two lateral divisions of tlie labium as long as tlie labial 

 palpi, and the males have very long antennae. Apis longiconds, Linn, [a common British species]. 



Macrocera, Spin., dilters from Euceia, having only 5-jointed maxillary palpi, and oidy two cubital cells. 



Mdtssodes, Latr., an American Eucera, with 4-jointed maxillary palpi, and three cubital cells. 



The others of this subdivision have the paraglossae much shorter than the labium, and always three cubital colls ; 

 and some have 6-jointed maxillary palpi. 



Melitturga, Latr., (with the male antenn;e clavate, and the palpi continuous). 



Anthopkora, Latr., (with the antenna; filiform, and the two terminal joints of the labial palpi minute and oblique). 

 {A. retnsa, a common British species, andj A. jyaric/ittn, make their nests in walls, the latter forming a perjiendi- 

 cular curved tube at its orifice, composed of grains of earth, which it destroys when it has finished laying its eggs. 



Saropoda, Latr., have only live joints in themaxillary palpi, and those of the labial palpi are continuous. 



Ancyloscdis, Latr., lias only 4-jointed miLxillary palpi ; the females have a strong toothed spine at the tip of the 

 jiosterior tibiae. Brazilian insects. My genus MeUtoma, having been established upun females of this genus, 

 must be suppressed. Tetrapedia, Klug, also enters into the preceding genus. 



Centris, Fabr., dilters from the preceding in having the mandibles generally with several teeth within, and the 

 maxillary palpi, as in the preceding, have only four joints. American insects. 



In the two following subgenera tlie maxillary pal|ii have only a single joint, which is t.ibsolele in some species. 



Epicharis, King, has the labial palpi continuous, and each ot the second and third cubital cells recei\-es a 

 recurrent nerve. 



Acanthopus, Klug, has the two terminal jnints of the labial palpi forming a small ubli'juc bi'ancb, and tlie third 

 cubital cell receives two recurrent nervures. 



The terminal Apiaiia; are social in their haliits, the societies consisting of males, females, and neuters, 

 the feet of the last of which lia\c the outer face of the tibiic furnished with a snmoth cxca\aliun, or 

 pollen basket, in whicli tlie\ jil.ice the puUcu mass, vJiich they have collected ivith tlie silken coating 

 of the inside of the basal joiiit of the hind tarsi. The maxillary {laljii are very minute, and composed 

 of a single joint. The anteniuc are elbowed. 



Sume have the posterior tibia.' terminated by two .s|)inc.s. 



K'n//n.\-sa, T>atr., has the labrum S(pi;ire, nndthi.' proboscis 

 as long as the limly. Some <>\' these have the body nearly 

 glabrous, as /i;. </(■/;/-//<:, torilithi. The hind surface of the 

 basal joint of tlir two pusti.Tinr tarsi is nevertheless coated 

 with a brii.sh. Tlieir habits are unknown. Others have 

 th.' hind tibi;i: cunvi.'X : we also obseiTe near the outer edge 

 a narrow longitudinal impression. Agla/', St. Farg., seems 

 established upon such indi\'iduals. 



BoDihiti-, has the labrum trans\'eise, with the prolioscis 



shorter than tlie body ; the body !>■ i'il)ust and ■\'ei-\' hairy ; 



the hairs often arnmged in colniiivd bntKls. The Humble 



' t\ pi; (if this gMius, till.- species of which live in undergromid 



