178 M. W. NIELSON 



Head considerably narrower than pronotum ; crown produced distally beyond anterior margin 

 of eyes, distal length slightly over one-third entire median length, striate radially, slightly 

 depressed medially, lateral margins broadly convex basally, disk elevated considerably above 

 level of eyes; ocelli large, situated anteriolaterally; eyes moderate size, occupying a little over 

 half entire dorsal area of head; pronotum short, median length less than median length of 

 crown, surface finely knobbed; scutellum large, median length greater than median length of 

 pronotum; elytra elongate, veins prominent, appendix well developed, venation as in description 

 of genus; clypeus elongate, broad anteriorly, narrowed posteriorly, without median longitudinal 

 carina, lateral margins constricted at antennal sockets, surface finely granulose, rugulose along 

 anterior margin; clypellus broad with lateral margins broadly concave medially. 



Male pygofer in lateral aspect with long, curved process arising from caudoventral margin, 

 process with lateral margins broad throughout at basal two-thirds, tapered at apical third, 

 apex sharply pointed, outer lateral margin sinuate at apical third; aedeagus in lateral aspect 

 simple with dorsal appendage broad at basal three-fourths, narrowly attenuated at apical 

 fourth, apex curved dorsad, without processes or flanges; ventral appendage narrow, tube-like, 

 closely appressed dorsally to dorsal appendage, apex somewhat expanded, reaching or extending 

 slightly beyond apex of dorsal appendage; gonopore apical; connective Y-shaped; style hooked 

 apically; plate with distal appendage elongate, lateral margins slightly expanded subapically. 



Female seventh sternum with posterior margin truncate, or nearly so. 



Distribution. Raja Ampat Islands, Moluccas, New Guinea. 



Specimens examined. 



Coelidia dorsimacula Walker, holotype $, New Guinea (Wallace) (BMNH, London). 

 Coelidia roseifascia Walker, lectotype $, Moluccas: Morotai (Wallace) (BMNH, 

 London). Coelidia selecta Walker, lectotype $, Moluccas: Sula I. (Wallace) (BMNH, 

 London). 



Moluccas: Ambon, 15 £, 14 § (F. Muir). New Guinea: Waris, S. of Hollandia, 450—500 m, 

 12 $, 25 $, 1-17.viii.1959 (T. C. Mad); Bodem, 100 m, 11 km S.E. of Oerberfaren, 15 £, 12 $, 

 7-17.vii.1959 (T. C. Maa); Hollandia area, Mt Sentani, Cyclops Mts, 150-250 m, 2 $, 3 $, 

 16-25.vi.1959 (/. L. Gressitt); Ifar, 300-600 m, 2 $, 3 $, 22-23.vi.1959 (T. C. Maa); Genjam, 

 40 km W. of Hollandia, ioo-20om,9$, i-io.iii.i96o(7\ C. Maa) ;Maprik, 160 m, 6 $, 29.xii.1959- 

 17. i. i960 (T. C. Maa); Vogelkop, Kebar Valley, W. of Manokwari, 550m, 2 9» 4~ 311.1962 

 (L. W. Quate) ; Papua, Daradae Plain, 500 m, 80 km from Pt Moresby, 3 $, 5.ix.i959 (T. C. Maa) ; 

 Biak I., Kampong, Landbouw, 50-100 m, 2 $, 27. v. 1959 (T. C. Maa); Amok, 165 m, 3 $, 

 6. i. i960 (T. C. Maa); Eramboe, 80 km from Merauke, 2 $, i.ii.1960 (T. C. Maa); Cyclops Mts, 

 Sabron, 130 ft, 3 $, iv. 1936 (L. E. Cheesman). 



The holotype female of Coelidia dorsimacula Walker was examined and compared 

 with the lectotypes of Coelidia roseifascia Walker and Coelidia selecta Walker. 

 I found that the latter two species are identical with dorsimacula, which is the 

 valid name by priority by pagination. 



Biology. Unknown. Collection records indicate that this species is common 

 from January to August in New Guinea. 



Remarks. This species is similar in general habitus to villicaris but can be 

 separated from that species by the simple aedeagus without processes, spines or 

 flanges on the dorsal appendage. 



