Feb., '06] ENTOMOLOGICAL NEWS. 57 



23. Gerris (tenagogonus) quadrilineata Champion. 



Three or four specimens from Rio Maria Aguilar in January 

 and May. The distribution given in Biologia Centrali-Am- 

 ericana is rather disconnected. This is the first record from 

 Costa Rica. 



24. Potamobates unidentatus Champion. 



One macropterous and two apterous individuals, male and 

 female, from Rio Surubres. Recorded by Champion only 

 from Bugaba, Panama. 



Some Notes on the Bee Genus Caupolicana. 



By Harry S. Smith, Lincoln, Nebr. 



Caupolicana albicollis n. sp.— J*. Length 19-21 mm. Black ; head, with 

 exception of the vertex, covered with a long, dense, whitish pubescence, 

 that on the face very slightly ochraceous, that on the occiput snow-white ; 

 labrum and mandibles dark rufous, sometimes black, the latter with a 

 dense fringe of long whitish hairs on the lower side ; clypeus finely and 

 irregularly punctured except the apex, which is impunctate and narrowly 

 margined ; antennae black, grayish brown beneath ; second joint of 

 fHgellum longer than style and almost half as long as the remaining por- 

 tion of the flagellum ; malar space short, about one-fourth as long as 

 wide. Thorax finely and closely punctured, mesonotum, as far back as 

 the tegulae, covered with a short but dense erect whitish pubescence, very 

 slightly tinged with ochraceous ; the remaining portion of the thorax 

 black, the hairs on the scutellum and post-scutellum much longer than 

 those on the mesonotum. Abdomen black, opaque, minutely indis- 

 tinctly punctured ; first dorsal segment covered with a long sooty black 

 pubescence like that of the scutellum, 2-4 almost bare excepting their 

 apices, 6 and apex of 5 with long black hairs ; segments 2-4 with broad 

 silvery fasciae, that on 2 sometimes slightly narrowed on the disk ; ven- 

 tral segments 2-4 clothed with long white pubescence, the segments 

 with black hairs. Coxae usually with a few long white hairs ; femora 

 and tibiae black, with black pubescence ; tarsi ferruginous, covered with 

 a fine short fulvous pubescence, metatarsus black with inner side 

 brownish. Wings smoky hyaline, slightly iridescent, veins and tegulae 

 brownish black ; first and second recurrent nervures confluent with first 

 and third cubital nervures. Length of wing 12-14 mm. 



9.— Similar to J\ but differs in having the venter black, and in having 

 somewhat broader fasciae ; a short dense black scopa on the posterior 

 legs, metatarsus twice as wide as in J*. The distance between the eyes 

 at vertex is also about twice that of the tf. 



