1898.] ENTOMOLOGICAL NEWS. l"Jl 



A SOUTHERN TYPE OF ANDRENA IN CONNECTICUT. 



By T, D. A. COCKERELL, N. M. Agr. Exp. Station. 



Andrena rhodura n. sp. ?. Length slightly over 10 mm., stoutly built, 

 black, with the abdomen and tarsi largely red. Head broad, the facial 

 quadrangle* broader than long, its sides parallel; pubescence of head and 

 thorax moderately long, but not very dense, dirty yellowish white, shin- 

 ing; clypeus rather prominent, with strong, rather close punctures; basal 

 process of labrum broad, rounded, subtruncate at tip, not emarginate; 

 mandibles feebly notched within near the end; antenna? black, flagellum 

 tinged with dark brown beneath; mesothorax rather shiny, minutely tes- 

 sellate, with sparse, but strong and very conspicuous punctures; scutelltim 

 similarly sculptured, but the punctures are aggregated in the median line 

 and again at the sides; pleura quite closely punctured; metathorax rather 

 closely, but shallowly punctured; the enclosure indistinctly marked by* a 

 line only, minutely granular or rugose, only at the base slightly inclined 

 to be plicate, produced to a point behind; the enclosure is duller than the 

 sides of the metathorax; tegulae very dark chestnut-brown, minutely lineo- 

 lately sculptured. Wings with a strong reddish yellow tinge, subcostal 

 nervure black, the nervures and the stigma ferruginous. Legs black, with 

 pale pubescence, the first four tarsi largely, and the hind tarsi entirely, 

 ferruginous; the hind tibia? are ferruginous at the distal end. Abdomen 

 rather broad, shining; without hair bands, but with pale, glittering yel- 

 lowish hairs on the fourth segment at the sides, and densely on the fifth, 

 the anal fimbria pale yellowish, upper surface of abdomen minutely tes- 

 sellate, with sparse, very feeble punctures. Color deep chestnut-red, the 

 base of first segment, and the bases of all the segments broadly black, a 

 black spot on each side of the second segment; venter reddish, largely 

 suffused with black. 



Hab. Hartford, Conn., June 2, 1895 (S. N. Dunning). 



The sculpture of the metathorax at once separates this from 

 A. marics Rob. From A. crythrogastra Ashm. (perezi Rob.) 

 it will be readily known by the strong mesothoracic punctures 

 and the strongly colored wings. 



A. rhodura is a very interesting species, quite alone among the 

 forms taken in the New England States, but belonging to a series 

 which becomes well developed in the southwest, with A. Jessica 

 argcmonis, prunorum, me/lea and casada, and extends far down 

 into Mexico, as in A. discreta. It is, however, distinct from all 

 these species, as might be expected from the widely different 

 habitat. 



* The term "facial quadrangle" is herewith proposed for the quadrangle formed by the 

 facial margins of the orhits and imaginary lines drawn transversely connecting the upper 

 and again the lower ends of the eyes. 



